Today's Message Index:
----------------------
1. 05:56 AM - Re: 701SP Fuel and wiring (Ed Kramer)
2. 05:58 AM - Re: Stratus cooling data (Don Walker)
3. 06:12 AM - Re: Stratus cooling data (The Meiste's)
4. 06:14 AM - Re: Stratus cooling data (The Meiste's)
5. 06:16 AM - Re: Stratus cooling data (The Meiste's)
6. 06:21 AM - Re: Stratus cooling data (Don Walker)
7. 06:22 AM - Re: Fw: cooling (The Meiste's)
8. 06:27 AM - Re: Fw: cooling (Don Walker)
9. 06:39 AM - Re: Removable Wing Baggage Compartment Tanks (Dr. Perry Morrison)
10. 06:50 AM - Re: Stratus cooling data (The Meiste's)
11. 06:57 AM - Re: Aluminum 6061 (Thilo Kind)
12. 06:57 AM - Re: Stratus cooling data (Jeff Small)
13. 06:59 AM - Re: 701SP Fuel and wiring (Ken Szewc)
14. 07:02 AM - Re: Stratus cooling data (Thilo Kind)
15. 07:27 AM - Re: Fw: cooling (Benford2@aol.com)
16. 07:27 AM - Re: Stratus cooling data (Don Walker)
17. 07:32 AM - Re: Fw: cooling (Don Walker)
18. 07:35 AM - Re: Fw: cooling (Benford2@aol.com)
19. 08:47 AM - Re: Fw: cooling (Don Honabach)
20. 09:33 AM - Re: Fw: cooling (Bryan Martin)
21. 09:46 AM - Re: silicon carbide (Bryan Martin)
22. 10:31 AM - Re: Fw: cooling (Don Walker)
23. 11:53 AM - Instrument panel labels (George Swinford)
24. 12:09 PM - Re: Instrument panel labels (Don Honabach)
25. 01:24 PM - Re: Fw: cooling (David & Maria Lumgair)
26. 01:58 PM - 3/4" x 3/4" x .093" extrusion (Carlos Sa)
27. 02:04 PM - Re: 3/4" x 3/4" x .093" extrusion (Michel Therrien)
28. 02:07 PM - Re: 3/4" x 3/4" x .093" extrusion (MJBTOL@aol.com)
29. 02:11 PM - Re: Instrument panel labels (Michel Therrien)
30. 02:52 PM - Re: Stratus cooling data (Bill Morelli)
31. 02:53 PM - Re: Instrument panel labels (Scott Laughlin)
32. 04:13 PM - Follow Up - Terminals/Crimpers... (Don Honabach)
33. 04:43 PM - Re: Follow Up - Terminals/Crimpers... (Don Honabach)
34. 05:55 PM - Re: Instrument panel labels (Michel Therrien)
35. 06:08 PM - Re: Instrument panel labels (George Swinford)
36. 06:58 PM - Re: Stratus cooling data (Don Walker)
37. 07:19 PM - Fw: Fw: cooling (Don Walker)
38. 07:19 PM - Re: Stratus cooling data (The Meiste's)
39. 08:21 PM - Re: Fw: cooling (Don Honabach)
40. 10:28 PM - While you were sleeping.... (Jon Croke)
Message 1
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| Subject: | Re: 701SP Fuel and wiring |
--> Zenith-List message posted by: "Ed Kramer" <edair701@adelphia.net>
> --> Zenith-List message posted by: "Ken Szewc" <szewc@cdsnet.net>
>
> I am building the hardest wing (the first one) and the manual and drawings
are not clear on how or where to run the fuel and wires out of the wing. I
have nav/strobe lights, extra wing tanks, and will have folding wing option.
> So do any of you have advise of where the wires and fuel line leave the
wing and how much should I leave on to get to the next fitting or connector?
> Are connectors usually located at the wing so that it can be removed if
needed?
Ken,
The construction manual shows a picture of the wires running through the
wing. I drilled out the machining holes at the rear of the rear ribs &
inserted rubber grommets & ran the wires through them. The wires exit
through rib # 1 & then through the root rib. I think about 6-feet of extra
wire will be enough. The root skin only gets clecoed on for now so there
will be access to the fuel line & wires when the wing gets bolted on.
Ed Kramer
West Seneca, NY
CH 701: Left wing & rudder complete. Right wing 90%.
edair701@adelphia.net
Message 2
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| Subject: | Re: Stratus cooling data |
Seal-Send-Time: Sat, 28 Jun 2003 07:58:51 -0500
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
I have been running a 70% water and 30% antifreeze solution for two summers now,
but my temps never exceed 220 on the heads in my Ea-81. This is not a recommendation,
just a report. Of course the idea is for better heat transfer. DonW
----- Original Message -----
From: Dietrich Ulrich
To: zenith-list@matronics.com
Sent: Saturday, June 28, 2003 12:46 AM
Subject: RE: Zenith-List: Stratus cooling data
--> Zenith-List message posted by: Dietrich Ulrich <ulrichd@shaw.ca>
Be aware you lower the water boiling temperature by lowering the
Antifreeze levels. You get better heat transfer but increase water
pressure, when the water starts boiling you're out of luck for cooling.
I understand that 50/50 is a save number for the EA-81.
Dietrich
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Dave Austin
To: zenith-list@matronics.com
Subject: Re: Zenith-List: Stratus cooling data
--> Zenith-List message posted by: "Dave Austin" <daveaustin2@sprint.ca>
Re overheating etc.. for what it's worth..
What coolant mixture are you using? I used the 80% recommended in the
Rotax
manual and had bad problems. Then an old RR Merlin mechanic saidto
me,"change that to 50/50". The problem disappeared for ever! The heat
transferance tables tell you that as well.
Dave Austin 601HDS - 912
Message 3
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| Subject: | Re: Stratus cooling data |
--> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
> Where is your radiator? If you don't have a heater core on the noncooled
circuit, it will bring it down 10 to 15 degrees.
> NOW, what do you make of this. My engine runs 205 to 208 in 80 degrees
and runs the same in 92 degrees ambient temp. What does that mean. Don
Walker HDS
Don,
My rad is in the standard ZAC location just behind the muffler, and angled
to the max adjustment allowed by the mounting brackets (and no heater core).
I also sealed off all sides and end with foam as per Bill M.
recommendations.
As for the 205 - 208 reading .... I'd take that any day & be happy!
Thanks,
Kelly
Message 4
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| Subject: | Re: Stratus cooling data |
--> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
> What coolant mixture are you using?
Dave,
Yes, I'm using a 50 / 50 mix of Prestone & distilled water.
Kelly
Message 5
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| Subject: | Re: Stratus cooling data |
--> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
> The change in mixture is easy to accomplish. take off the top of the
carb,
> remove the diaphragm with the main jet attached. Remove the screw in the
> tube and the jet will come out. Take off the tiny clip (be careful and
> don't drop it!) and move it down a notch to make the mixture more rich.
> Re-assemble.
>
> John Karnes
> Port Orchard, WA
Thanks for the advice John!
do not achieve
Message 6
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| Subject: | Re: Stratus cooling data |
Seal-Send-Time: Sat, 28 Jun 2003 08:21:04 -0500
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
Adding the heater core will surely bring it down for you, Kelly, 10 to fifteen
degrees. There are simple ways to do that. Don
----- Original Message -----
From: The Meiste's
To: zenith-list@matronics.com
Sent: Saturday, June 28, 2003 8:14 AM
Subject: Re: Zenith-List: Stratus cooling data
--> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
> Where is your radiator? If you don't have a heater core on the noncooled
circuit, it will bring it down 10 to 15 degrees.
> NOW, what do you make of this. My engine runs 205 to 208 in 80 degrees
and runs the same in 92 degrees ambient temp. What does that mean. Don
Walker HDS
Don,
My rad is in the standard ZAC location just behind the muffler, and angled
to the max adjustment allowed by the mounting brackets (and no heater core).
I also sealed off all sides and end with foam as per Bill M.
recommendations.
As for the 205 - 208 reading .... I'd take that any day & be happy!
Thanks,
Kelly
Message 7
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--> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
> we had alot of cooling problems on an ea 81
>
> the cure was to slow the water down
>
> we put as smaller pulley on the crankshaft
>
>
> end of our problem 2 years ago
>
>
> jack lewis
> celista bc
> canada
Jack,
I've also heard this theory but wasn't sure about it?
I do run the standard ZAC supplied thermostat & rad cap. I was thinking of
possibly adding a restrictor of some type in the rad hoses to slightly add
to the restriction of the thermostat to see if that would help or hurt
things.
Thanks for the info,
Kelly
Message 8
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Seal-Send-Time: Sat, 28 Jun 2003 08:27:52 -0500
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
I'm no engineer, but this seems to defy my logic. What kind of rpm's was this effective
with? don
----- Original Message -----
From: The Meiste's
To: zenith-list@matronics.com
Sent: Saturday, June 28, 2003 8:24 AM
Subject: Re: Zenith-List: Fw: cooling
--> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
> we had alot of cooling problems on an ea 81
>
> the cure was to slow the water down
>
> we put as smaller pulley on the crankshaft
>
>
> end of our problem 2 years ago
>
>
> jack lewis
> celista bc
> canada
Jack,
I've also heard this theory but wasn't sure about it?
I do run the standard ZAC supplied thermostat & rad cap. I was thinking of
possibly adding a restrictor of some type in the rad hoses to slightly add
to the restriction of the thermostat to see if that would help or hurt
things.
Thanks for the info,
Kelly
Message 9
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| Subject: | Re: Removable Wing Baggage Compartment Tanks |
--> Zenith-List message posted by: "Dr. Perry Morrison" <perrymorrison@yahoo.com>
I've modified my lockers to be either tanks or baggage space. In fact, I can pull
the tank
out in 5 secs and go get gas. The tank itself is a boat fuel tank of the right
dimensions.
Rather than get the very expensive ZAC tanks and fix them to the main spar and
rib, we reinforced the locker floor with thin bar and put "panelrib" the stuff
you
see on the side of caravans/RVs. That way no holes pierced the bottom wing skin.
The tank is held in by a single bungie cord. The floor of the locker is so strong
you could stand in it (yes, I know the weight limitations) and the added weight
of
the mod is minimal. I'll try to take some photos and mail them.
Perry Morrison
Terry Ladouceur <tladouce@canthaisoftware.com> wrote:
--> Zenith-List message posted by: "Terry Ladouceur"
Hi List,
I purchased a Zodiac 601UL that has not been flying since December 1994.
After thorough inspections and some needed work, I am happy to say it is
back in the air this week for testing and so far flies like a dream.
What a joy to fly this plane. I have always wanted to own a Zodiac 601 and I
am so excited that it has finally happened.
Anyways to the point of my message. I would like to add Wing Baggage
Compartment Fuel Tanks to this plane. I know there are kits from Zenair, but
has anyone used a different method that would allow for removal of the tanks
when on short local type of flights?
Any suggestions and/or pics would be greatly appreciated. Thanks.
Terry Ladouceur, MCT, MCSE, MCSD, MCDBA, CNA, A+
Can-Thai Software Solutions Incorporated
605 Manly Street
Midland, Ontario
Canada L4R 3G4
1-705-527-1717
www.canthaisoftware.com
__________________________
Dr. Perry Morrison
Morrison Associates Pty Ltd
+61 08 89 88 4617
0408892638
perrymorrison@yahoo.com
__________________________
Message 10
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| Subject: | Re: Stratus cooling data |
--> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
> Adding the heater core will surely bring it down for you, Kelly, 10 to
fifteen degrees. There are simple ways to do that.
Don
This is probably correct Don. But I just wish ZAC would supply the proper
size rad for the 100 HP Stratus installation and us Stratus guys wouldn't be
having this problem.
They appear to be supplying us with the same rad they use in their 80 HP
Rotax installation with is probably OK for them. But add on that additional
20% HP, and the heat that goes with it and your pushing the limit to keep
things cool.
I honestly believe the best cure for a Stratus powered 601 is trashing the
ZAC rad & purchasing a larger volume unit.
I hate flying looking at my temp gages instead of out of that nice canopy!
Kelly
Message 11
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| Subject: | Re: Aluminum 6061 |
--> Zenith-List message posted by: "Thilo Kind" <thilo.kind@gmx.net>
Yes - I need to redo my wing fairing skins, since they are dented.
Thilo Kind
----- Original Message -----
From: <Ramperf@aol.com>
Subject: Re: Zenith-List: Aluminum 6061
> --> Zenith-List message posted by: Ramperf@aol.com
>
> are you going to bend it?
> Ron
>
>
>
>
>
>
Message 12
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| Subject: | Re: Stratus cooling data |
Seal-Send-Time: Sat, 28 Jun 2003 09:58:22 -0400
--> Zenith-List message posted by: "Jeff Small" <zodiacjeff@msn.com>
The change in mixture is easy to accomplish. take off the top of the carb,
remove the diaphragm with the main jet attached. Remove the screw in the
tube and the jet will come out. Take off the tiny clip (be careful and
don't drop it!) and move it down a notch to make the mixture more rich.
Re-assemble.
John,
Might you mean the "jet needle" rather than the jet? And when fitting the rubber
diaphragm back on, look for and align a small tab with a recess in the carb
body.
As for "rich looking" plugs...
The jabiruengines list threw this around for a while and the Jab engine folks
told us than you can't depend on blackened plugs to indicate a rich mixture.
Even a few minutes at idle (as when taxiing back the ramp) will blacken the plugs.
If you want a more accurate "read" off the plugs you've got to chop the
engine while at full throttle. Anyone for a glider?
Kelly, with oil temps that high you might be looking at a remote oil cooler with
dedicated NACA vent and duct work.
j
Message 13
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| Subject: | Re: 701SP Fuel and wiring |
--> Zenith-List message posted by: "Ken Szewc" <szewc@cdsnet.net>
That's fine for access to the standard tank, but I have an extended tank
also. That needs to be connected before I rivet the top skin down. I have
already done that and run the fuel line through grommets just behind the
tanks.
It would still be helpful to know the general layout of the components in
the relationship to the fuselage placement. How much extra will I need extra
to fold the wings back?
What have other people with extended tanks done? Did you install a separate
shut off for the extended tanks?
Ken
----- Original Message -----
From: "Ed Kramer" <edair701@adelphia.net>
Subject: Re: Zenith-List: 701SP Fuel and wiring
> --> Zenith-List message posted by: "Ed Kramer" <edair701@adelphia.net>
>
> > --> Zenith-List message posted by: "Ken Szewc" <szewc@cdsnet.net>
> >
> > I am building the hardest wing (the first one) and the manual and
drawings
> are not clear on how or where to run the fuel and wires out of the wing. I
> have nav/strobe lights, extra wing tanks, and will have folding wing
option.
> > So do any of you have advise of where the wires and fuel line leave the
> wing and how much should I leave on to get to the next fitting or
connector?
> > Are connectors usually located at the wing so that it can be removed if
> needed?
>
> Ken,
> The construction manual shows a picture of the wires running through the
> wing. I drilled out the machining holes at the rear of the rear ribs &
> inserted rubber grommets & ran the wires through them. The wires exit
> through rib # 1 & then through the root rib. I think about 6-feet of extra
> wire will be enough. The root skin only gets clecoed on for now so there
> will be access to the fuel line & wires when the wing gets bolted on.
>
> Ed Kramer
> West Seneca, NY
> CH 701: Left wing & rudder complete. Right wing 90%.
> edair701@adelphia.net
>
>
Message 14
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| Subject: | Re: Stratus cooling data |
--> Zenith-List message posted by: "Thilo Kind" <thilo.kind@gmx.net>
The rad supplied by ZAC is way larger than the original radiator for the
Rotax 912, so I believe it should be sufficient for the Stratus as well.
Thilo Kind
----- Original Message -----
From: "The Meiste's" <meiste@essex1.com>
Subject: Re: Zenith-List: Stratus cooling data
> --> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
>
> > Adding the heater core will surely bring it down for you, Kelly, 10 to
> fifteen degrees. There are simple ways to do that.
> Don
>
>
> This is probably correct Don. But I just wish ZAC would supply the proper
> size rad for the 100 HP Stratus installation and us Stratus guys wouldn't
be
> having this problem.
> They appear to be supplying us with the same rad they use in their 80 HP
> Rotax installation with is probably OK for them. But add on that
additional
> 20% HP, and the heat that goes with it and your pushing the limit to keep
> things cool.
> I honestly believe the best cure for a Stratus powered 601 is trashing the
> ZAC rad & purchasing a larger volume unit.
> I hate flying looking at my temp gages instead of out of that nice canopy!
>
> Kelly
>
>
Message 15
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--> Zenith-List message posted by: Benford2@aol.com
In a message dated 6/28/2003 7:28:42 AM Mountain Daylight Time,
dwalk3dw@msn.com writes:
>
>
> --> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
>
> I'm no engineer, but this seems to defy my logic. What kind of rpm's was
> this effective with? don
> ----- Original Message -----
> From: The Meiste's
> To: zenith-list@matronics.com
> Sent: Saturday, June 28, 2003 8:24 AM
> Subject: Re: Zenith-List: Fw: cooling
>
>
> --> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
>
> > we had alot of cooling problems on an ea 81
> >
> > the cure was to slow the water down
> >
> > we put as smaller pulley on the crankshaft
> >
> >
> > end of our problem 2 years ago
> >
> >
> > jack lewis
> > celista bc
> > canada
>
>
>
The idea is to slow down the coolant as it passes across the surfaces of the
engine water jacket and the innered of the radiator. On iron blocks and copper
/ brass radiators one needs to slow down the coolant for good heat transfer.
On aluminum motors using copper / brass rads in needs to speed up a little
cause the aluminum block transfers heat faster. In my case I am running an
aluminum Ford V-8 block, aluminum heads and everything thing else on this beast
is
aluminum too. I will be having Rod Davis Racing fabricate me some custom
aluminum coolers. Indy cars and other high performance all aluminum motor / rad
combinations move the coolant as fast as possible. It has been explained to me
that a Indy car circulates coolant through its system, ie, motor /rads / coolant
lines about every 4 seconds where as a standard passenger car it takes 15 to
25 seconds to make a complete circuit. I am curious, what kind of radiators
does ZAC furnish? Is it copper / brass? Plastic tanks and copper fins? Plastic
tanks and aluminum fins or all aluminum?
Ben Haas. N801BH. Jackson Hole Wy.
Message 16
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| Subject: | Re: Stratus cooling data |
Seal-Send-Time: Sat, 28 Jun 2003 09:27:59 -0500
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
Know just what you mean, I am determined to find a solution. Yes iam.
I am determined to find a solution. D do not archive
----- Original Message -----
From: The Meiste's
To: zenith-list@matronics.com
Sent: Saturday, June 28, 2003 8:52 AM
Subject: Re: Zenith-List: Stratus cooling data
--> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
> Adding the heater core will surely bring it down for you, Kelly, 10 to
fifteen degrees. There are simple ways to do that.
Don
This is probably correct Don. But I just wish ZAC would supply the proper
size rad for the 100 HP Stratus installation and us Stratus guys wouldn't be
having this problem.
They appear to be supplying us with the same rad they use in their 80 HP
Rotax installation with is probably OK for them. But add on that additional
20% HP, and the heat that goes with it and your pushing the limit to keep
things cool.
I honestly believe the best cure for a Stratus powered 601 is trashing the
ZAC rad & purchasing a larger volume unit.
I hate flying looking at my temp gages instead of out of that nice canopy!
Kelly
Message 17
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Seal-Send-Time: Sat, 28 Jun 2003 09:31:21 -0500
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
All aluminum.
----- Original Message -----
From: Benford2@aol.com
To: zenith-list@matronics.com
Sent: Saturday, June 28, 2003 9:26 AM
Subject: Re: Zenith-List: Fw: cooling
--> Zenith-List message posted by: Benford2@aol.com
In a message dated 6/28/2003 7:28:42 AM Mountain Daylight Time,
dwalk3dw@msn.com writes:
>
>
> --> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
>
> I'm no engineer, but this seems to defy my logic. What kind of rpm's was
> this effective with? don
> ----- Original Message -----
> From: The Meiste's
> To: zenith-list@matronics.com
> Sent: Saturday, June 28, 2003 8:24 AM
> Subject: Re: Zenith-List: Fw: cooling
>
>
> --> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
>
> > we had alot of cooling problems on an ea 81
> >
> > the cure was to slow the water down
> >
> > we put as smaller pulley on the crankshaft
> >
> >
> > end of our problem 2 years ago
> >
> >
> > jack lewis
> > celista bc
> > canada
>
>
>
The idea is to slow down the coolant as it passes across the surfaces of the
engine water jacket and the innered of the radiator. On iron blocks and copper
/ brass radiators one needs to slow down the coolant for good heat transfer.
On aluminum motors using copper / brass rads in needs to speed up a little
cause the aluminum block transfers heat faster. In my case I am running an
aluminum Ford V-8 block, aluminum heads and everything thing else on this beast
is
aluminum too. I will be having Rod Davis Racing fabricate me some custom
aluminum coolers. Indy cars and other high performance all aluminum motor / rad
combinations move the coolant as fast as possible. It has been explained to me
that a Indy car circulates coolant through its system, ie, motor /rads / coolant
lines about every 4 seconds where as a standard passenger car it takes 15 to
25 seconds to make a complete circuit. I am curious, what kind of radiators
does ZAC furnish? Is it copper / brass? Plastic tanks and copper fins? Plastic
tanks and aluminum fins or all aluminum?
Ben Haas. N801BH. Jackson Hole Wy.
Message 18
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--> Zenith-List message posted by: Benford2@aol.com
In a message dated 6/28/2003 8:32:58 AM Mountain Daylight Time,
dwalk3dw@msn.com writes:
>
> All aluminum.
> ----- Original Message -----
> From: Benford2@aol.com
> To: zenith-list@matronics.com
> Sent: Saturday, June 28, 2003 9:26 AM
> Subject: Re: Zenith
What is the dimensions of it. Height, width, and most importantly the
thickness of the fins???
Message 19
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--> Zenith-List message posted by: "Don Honabach" <don@pcperfect.com>
It sounds to me that what needs to happen is some sort of analysis that
finds the best heat transfer rate versus the coolant flow rate. I highly
doubt that us Subaru owners that purchased firewall forward kits, etc.
bought anything that was engineered. My guess is that it was slapped
together and it worked for someone so it was sold to us :o
If any one has any ideas for how to setup a test rig, I'd be more than
happy to participate.
Regards,
Don Honabach
-----Original Message-----
From: Don Walker [mailto:dwalk3dw@msn.com]
Subject: Re: Zenith-List: Fw: cooling
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
All aluminum.
----- Original Message -----
From: Benford2@aol.com
To: zenith-list@matronics.com
Sent: Saturday, June 28, 2003 9:26 AM
Subject: Re: Zenith-List: Fw: cooling
--> Zenith-List message posted by: Benford2@aol.com
In a message dated 6/28/2003 7:28:42 AM Mountain Daylight Time,
dwalk3dw@msn.com writes:
>
>
> --> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
>
> I'm no engineer, but this seems to defy my logic. What kind of rpm's
was
> this effective with? don
> ----- Original Message -----
> From: The Meiste's
> To: zenith-list@matronics.com
> Sent: Saturday, June 28, 2003 8:24 AM
> Subject: Re: Zenith-List: Fw: cooling
>
>
> --> Zenith-List message posted by: "The Meiste's"
<meiste@essex1.com>
>
> > we had alot of cooling problems on an ea 81
> >
> > the cure was to slow the water down
> >
> > we put as smaller pulley on the crankshaft
> >
> >
> > end of our problem 2 years ago
> >
> >
> > jack lewis
> > celista bc
> > canada
>
>
>
The idea is to slow down the coolant as it passes across the surfaces
of the
engine water jacket and the innered of the radiator. On iron blocks
and copper
/ brass radiators one needs to slow down the coolant for good heat
transfer.
On aluminum motors using copper / brass rads in needs to speed up a
little
cause the aluminum block transfers heat faster. In my case I am
running an
aluminum Ford V-8 block, aluminum heads and everything thing else on
this beast is
aluminum too. I will be having Rod Davis Racing fabricate me some
custom
aluminum coolers. Indy cars and other high performance all aluminum
motor / rad
combinations move the coolant as fast as possible. It has been
explained to me
that a Indy car circulates coolant through its system, ie, motor /rads
/ coolant
lines about every 4 seconds where as a standard passenger car it takes
15 to
25 seconds to make a complete circuit. I am curious, what kind of
radiators
does ZAC furnish? Is it copper / brass? Plastic tanks and copper
fins? Plastic
tanks and aluminum fins or all aluminum?
Ben Haas. N801BH. Jackson Hole Wy.
direct advertising on the Matronics Forums.
Message 20
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|
--> Zenith-List message posted by: Bryan Martin <bryanmmartin@comcast.net>
on 6/28/03 10:34 AM, Benford2@aol.com at Benford2@aol.com wrote:
>>
>> All aluminum.
>> ----- Original Message -----
>> From: Benford2@aol.com
>> To: zenith-list@matronics.com
>> Sent: Saturday, June 28, 2003 9:26 AM
>> Subject: Re: Zenith
>
> What is the dimensions of it. Height, width, and most importantly the
> thickness of the fins???
>
The radiator supplied to me from ZAC is for a Volkswagen Fox. It has polymer
end tanks with all aluminum tubes and fins. As I recall, the radiating area
is about 13" by 19".
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
Airframe construction complete.
Working on instrument panel, electrical and interior.
do not archive.
Message 21
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|
| Subject: | Re: silicon carbide |
--> Zenith-List message posted by: Bryan Martin <bryanmmartin@comcast.net>
on 6/23/03 5:26 PM, Flydog1966@aol.com at Flydog1966@aol.com wrote:
> --> Zenith-List message posted by: Flydog1966@aol.com
>
> Thanks for the reply about abrasives. But is the "carbide" an "iron oxide"?
> I'm guessing its some form of carbon. I cant figure out how to work those
> archives but I'll check the old newsletters for that chart.
> Thanks again
> Phil
Silicon carbide is a compound of silicon and carbon. The problem here is
probably with the carbon. Carbon and aluminum don't play well together. This
is the reason you shouldn't use a "lead" pencil to mark aluminum.
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
Airframe construction complete.
Working on instrument panel, electrical and interior.
do not archive.
Message 22
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Seal-Send-Time: Sat, 28 Jun 2003 12:30:58 -0500
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
I am meeting at 2:00 pm today with a pilot and engineer who has four aircraft,
one of which is a soob powered gyro. He has volunteered to hook probes here and
there on my HDS in order to determine if it is a flow problem or otherwise.
I'll let ya know of any significant results as well as his procedure. Don W
----- Original Message -----
From: Don Honabach
To: zenith-list@matronics.com
Sent: Saturday, June 28, 2003 10:46 AM
Subject: RE: Zenith-List: Fw: cooling
--> Zenith-List message posted by: "Don Honabach" <don@pcperfect.com>
It sounds to me that what needs to happen is some sort of analysis that
finds the best heat transfer rate versus the coolant flow rate. I highly
doubt that us Subaru owners that purchased firewall forward kits, etc.
bought anything that was engineered. My guess is that it was slapped
together and it worked for someone so it was sold to us :o
If any one has any ideas for how to setup a test rig, I'd be more than
happy to participate.
Regards,
Don Honabach
-----Original Message-----
From: Don Walker [mailto:dwalk3dw@msn.com]
To: zenith-list@matronics.com
Subject: Re: Zenith-List: Fw: cooling
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
All aluminum.
----- Original Message -----
From: Benford2@aol.com
To: zenith-list@matronics.com
Sent: Saturday, June 28, 2003 9:26 AM
Subject: Re: Zenith-List: Fw: cooling
--> Zenith-List message posted by: Benford2@aol.com
In a message dated 6/28/2003 7:28:42 AM Mountain Daylight Time,
dwalk3dw@msn.com writes:
>
>
> --> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
>
> I'm no engineer, but this seems to defy my logic. What kind of rpm's
was
> this effective with? don
> ----- Original Message -----
> From: The Meiste's
> To: zenith-list@matronics.com
> Sent: Saturday, June 28, 2003 8:24 AM
> Subject: Re: Zenith-List: Fw: cooling
>
>
> --> Zenith-List message posted by: "The Meiste's"
<meiste@essex1.com>
>
> > we had alot of cooling problems on an ea 81
> >
> > the cure was to slow the water down
> >
> > we put as smaller pulley on the crankshaft
> >
> >
> > end of our problem 2 years ago
> >
> >
> > jack lewis
> > celista bc
> > canada
>
>
>
The idea is to slow down the coolant as it passes across the surfaces
of the
engine water jacket and the innered of the radiator. On iron blocks
and copper
/ brass radiators one needs to slow down the coolant for good heat
transfer.
On aluminum motors using copper / brass rads in needs to speed up a
little
cause the aluminum block transfers heat faster. In my case I am
running an
aluminum Ford V-8 block, aluminum heads and everything thing else on
this beast is
aluminum too. I will be having Rod Davis Racing fabricate me some
custom
aluminum coolers. Indy cars and other high performance all aluminum
motor / rad
combinations move the coolant as fast as possible. It has been
explained to me
that a Indy car circulates coolant through its system, ie, motor /rads
/ coolant
lines about every 4 seconds where as a standard passenger car it takes
15 to
25 seconds to make a complete circuit. I am curious, what kind of
radiators
does ZAC furnish? Is it copper / brass? Plastic tanks and copper
fins? Plastic
tanks and aluminum fins or all aluminum?
Ben Haas. N801BH. Jackson Hole Wy.
direct advertising on the Matronics Forums.
Message 23
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|
| Subject: | Instrument panel labels |
--> Zenith-List message posted by: "George Swinford" <grs-pms@attbi.com>
I am looking for a neat way to label the switches and circuit breakers on my instrument
panel. The panel will be finished with a flat tan paint. Black lettering
on the tan may not show up well. Suggestions appreciated.
George Swinford
Message 24
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|
| Subject: | Instrument panel labels |
--> Zenith-List message posted by: "Don Honabach" <don@pcperfect.com>
George,
You might want to take a look at www.frontpanelexpress.com. If your
switches are lined up, you could put an overlay on with stencil'd
lettering.
Don Honabach
-----Original Message-----
From: George Swinford [mailto:grs-pms@attbi.com]
Subject: Zenith-List: Instrument panel labels
--> Zenith-List message posted by: "George Swinford" <grs-pms@attbi.com>
I am looking for a neat way to label the switches and circuit breakers
on my instrument panel. The panel will be finished with a flat tan
paint. Black lettering on the tan may not show up well. Suggestions
appreciated.
George Swinford
direct advertising on the Matronics Forums.
Message 25
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|
--> Zenith-List message posted by: "David & Maria Lumgair" <dlummy@visi.net>
We used to install a PVC Ball Valve in race cars at the return to the
radiator to slow coolant flow for testing if we were having problems, they
are cheap at the hardware store. We'd pull the top radiator hose - clamp
the valve in with a piece of scrap hose connecting it to the radiator. THIS
WAS FOR TESTING ONLY - then if we could get an improvement by restricting
flow with the ball valve (PLEASE NOTE - RESTRICTING - NOT SHUTTING DOWN -
YOU DON'T NEED TO CLOSE IT MUCH AT ALL!) we would remove it and buy special
inserts that go on the thermostat housing. - They are available in
different sizes and I think JEGS carries them. --- Hope that helps you
guys... Dave
do not archive
----- Original Message -----
From: "Don Walker" <dwalk3dw@msn.com>
Subject: Re: Zenith-List: Fw: cooling
> --> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
>
> I am meeting at 2:00 pm today with a pilot and engineer who has four
aircraft, one of which is a soob powered gyro. He has volunteered to hook
probes here and there on my HDS in order to determine if it is a flow
problem or otherwise. I'll let ya know of any significant results as well as
his procedure. Don W
> ----- Original Message -----
> From: Don Honabach
> To: zenith-list@matronics.com
> Sent: Saturday, June 28, 2003 10:46 AM
> Subject: RE: Zenith-List: Fw: cooling
>
>
> --> Zenith-List message posted by: "Don Honabach" <don@pcperfect.com>
>
> It sounds to me that what needs to happen is some sort of analysis that
> finds the best heat transfer rate versus the coolant flow rate. I highly
> doubt that us Subaru owners that purchased firewall forward kits, etc.
> bought anything that was engineered. My guess is that it was slapped
> together and it worked for someone so it was sold to us :o
>
> If any one has any ideas for how to setup a test rig, I'd be more than
> happy to participate.
>
> Regards,
> Don Honabach
>
>
> -----Original Message-----
> From: Don Walker [mailto:dwalk3dw@msn.com]
> To: zenith-list@matronics.com
> Subject: Re: Zenith-List: Fw: cooling
>
>
> --> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
>
> All aluminum.
> ----- Original Message -----
> From: Benford2@aol.com
> To: zenith-list@matronics.com
> Sent: Saturday, June 28, 2003 9:26 AM
> Subject: Re: Zenith-List: Fw: cooling
>
>
> --> Zenith-List message posted by: Benford2@aol.com
>
> In a message dated 6/28/2003 7:28:42 AM Mountain Daylight Time,
> dwalk3dw@msn.com writes:
>
>
> >
> >
> > --> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
> >
> > I'm no engineer, but this seems to defy my logic. What kind of rpm's
> was
> > this effective with? don
> > ----- Original Message -----
> > From: The Meiste's
> > To: zenith-list@matronics.com
> > Sent: Saturday, June 28, 2003 8:24 AM
> > Subject: Re: Zenith-List: Fw: cooling
> >
> >
> > --> Zenith-List message posted by: "The Meiste's"
> <meiste@essex1.com>
> >
> > > we had alot of cooling problems on an ea 81
> > >
> > > the cure was to slow the water down
> > >
> > > we put as smaller pulley on the crankshaft
> > >
> > >
> > > end of our problem 2 years ago
> > >
> > >
> > > jack lewis
> > > celista bc
> > > canada
> >
> >
> >
>
> The idea is to slow down the coolant as it passes across the surfaces
> of the
> engine water jacket and the innered of the radiator. On iron blocks
> and copper
> / brass radiators one needs to slow down the coolant for good heat
> transfer.
> On aluminum motors using copper / brass rads in needs to speed up a
> little
> cause the aluminum block transfers heat faster. In my case I am
> running an
> aluminum Ford V-8 block, aluminum heads and everything thing else on
> this beast is
> aluminum too. I will be having Rod Davis Racing fabricate me some
> custom
> aluminum coolers. Indy cars and other high performance all aluminum
> motor / rad
> combinations move the coolant as fast as possible. It has been
> explained to me
> that a Indy car circulates coolant through its system, ie, motor /rads
> / coolant
> lines about every 4 seconds where as a standard passenger car it takes
> 15 to
> 25 seconds to make a complete circuit. I am curious, what kind of
> radiators
> does ZAC furnish? Is it copper / brass? Plastic tanks and copper
> fins? Plastic
> tanks and aluminum fins or all aluminum?
>
> Ben Haas. N801BH. Jackson Hole Wy.
>
>
> direct advertising on the Matronics Forums.
>
>
Message 26
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| Subject: | 3/4" x 3/4" x .093" extrusion |
--> Zenith-List message posted by: Carlos Sa <carlosfsa@yahoo.com>
Hello, listers
Can you tell me if the angle ("L") extrusion with dimensions above is a hard to
find
item (i.e., harder than the average)?
I have a piece of 3/4" x 3/4" x 1/8" (.125") which I used for the ruder hinge,
and I
am wondering if it was a mistake or a decision based on availability of the .093"
material.
Oh, if I only had a brain - well, memory would be a nice start... :o)
Cheers
Carlos
CH601-HD, plans
Tail feathers done, wing spars more than half way there.
Message 27
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|
| Subject: | Re: 3/4" x 3/4" x .093" extrusion |
--> Zenith-List message posted by: Michel Therrien <mtherr@yahoo.com>
As you said, the .093" thickness is hard to find. I
followed the advise of several plans builders and used
.125" extrusions.
Michel
--- Carlos Sa <carlosfsa@yahoo.com> wrote:
> --> Zenith-List message posted by: Carlos Sa
> <carlosfsa@yahoo.com>
>
> Hello, listers
>
>
> Can you tell me if the angle ("L") extrusion with
> dimensions above is a hard to find
> item (i.e., harder than the average)?
>
> I have a piece of 3/4" x 3/4" x 1/8" (.125") which I
> used for the ruder hinge, and I
> am wondering if it was a mistake or a decision based
> on availability of the .093"
> material.
> Oh, if I only had a brain - well, memory would be a
> nice start... :o)
>
> Cheers
>
> Carlos
> CH601-HD, plans
> Tail feathers done, wing spars more than half way
> there.
>
>
>
> Contributions
> any other
> Forums.
>
> latest messages.
> List members.
>
> http://www.matronics.com/subscription
> http://www.matronics.com/FAQ/Zenith-List.htm
> Digests:http://www.matronics.com/digest/zenith-list
> http://www.matronics.com/archives
> http://www.matronics.com/photoshare
> http://www.matronics.com/emaillists
>
>
>
>
>
=====
----------------------------
Michel Therrien CH601-HD
http://mthobby.pcperfect.com/ch601
http://www.zenithair.com/bldrlist/profiles/mthobby
http://pages.infinit.net/mthobby
__________________________________
Message 28
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| Subject: | Re: 3/4" x 3/4" x .093" extrusion |
--> Zenith-List message posted by: MJBTOL@aol.com
Carlos,
I have tried to find the .093 angle with no luck and I work for an aluminum
supplier. None of our vendors stock it, so I believe it is hard to come by. I
know of other builders using .125 and so am I. A little harder to bend, but I
think the weight penalty is not that much.
Mike (601 plans built # 6-3756)
4 years and 50%
Message 29
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|
| Subject: | Re: Instrument panel labels |
--> Zenith-List message posted by: Michel Therrien <mtherr@yahoo.com>
I plan on doing like shown on this page:
http://home.hiwaay.net/~sbuc/journal/panel2.html
Michel
--- George Swinford <grs-pms@attbi.com> wrote:
> --> Zenith-List message posted by: "George Swinford"
> <grs-pms@attbi.com>
>
> I am looking for a neat way to label the switches
> and circuit breakers on my instrument panel. The
> panel will be finished with a flat tan paint. Black
> lettering on the tan may not show up well.
> Suggestions appreciated.
>
> George Swinford
>
>
>
> Contributions
> any other
> Forums.
>
> latest messages.
> List members.
>
> http://www.matronics.com/subscription
> http://www.matronics.com/FAQ/Zenith-List.htm
> Digests:http://www.matronics.com/digest/zenith-list
> http://www.matronics.com/archives
> http://www.matronics.com/photoshare
> http://www.matronics.com/emaillists
>
>
>
>
>
=====
----------------------------
Michel Therrien CH601-HD
http://mthobby.pcperfect.com/ch601
http://www.zenithair.com/bldrlist/profiles/mthobby
http://pages.infinit.net/mthobby
__________________________________
Message 30
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|
| Subject: | Re: Stratus cooling data |
--> Zenith-List message posted by: Bill Morelli <billvt@together.net>
I also do not have any cooling problems. I just finished a flight with the
ambient temp at 96 deg. My oil gets to 220 and water stays at 210. These
temps are typical for me during the summer months. In winter of course,
they are lower.
I do have a heater core for my cabin heat and I think that extra radiator
area makes a difference.
Regards,
Bill (N812BM - HDS - Tri - Stratus - Vermont - 254.3 flight hrs. - 365
landings, 1 ON ICE!!)
web site -> http://homepages.together.net/~billvt/
At 09:19 PM 6/27/2003 -0500, you wrote:
>--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
>
>Kelly,
>Where is your radiator? If you don't have a heater core on the noncooled
>circuit, it will bring it down 10 to 15 degrees.
> NOW, what do you make of this. My engine runs 205 to 208 in 80
> degrees and runs the same in 92 degrees ambient temp. What does that
> mean. Don Walker HDS
> ----- Original Message -----
> From: The Meiste's
> To: zenith-list@matronics.com
> Sent: Friday, June 27, 2003 8:49 PM
> Subject: Re: Zenith-List: Stratus cooling data
>
>
> --> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
>
> make the mixture rich enough (check by looking at the spark plugs),
>
> John Karnes
> Port Orchard, WA
>
>
> John or anyone else with this Bing CV carb, how difficult is this to do?
> Is it just a matter of popping the top off the carbs & pulling out the
> needle & changing the clip location (down one notch), then reassembling the
> carbs.
> Will by making this needle setting richer lower both water & oil temps, or
> just the water temp?
> My Stratus cruising at 4,000 RPM on a 80 degree day will hit 220 on the
> water, & 240 on the oil pretty fast.
> Hoping this may help matters some .... thanks,
>
> Kelly Meiste
> 601 HD Stratus (58 hrs)
>
>
Message 31
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|
| Subject: | Re: Instrument panel labels |
--> Zenith-List message posted by: "Scott Laughlin" <cookwithgas@hotmail.com>
Michel:
I would go one step further. If you lay out your panel, paint it, then
install the stickers before installing any instruments, you can spray a
clear coat over the stickers and they won't peel off. Otherwise you will be
unhappy with the results after a while. I have had good luck with this
"spray-over" application before and it looks professional. Clear coat
lacquer dries fast and is very shiny, but others would work.
Post pictures on your website of what you do. I would like to see it.
Scott Laughlin
www.cooknwithgas.com
----Original Message Follows----
From: Michel Therrien <mtherr@yahoo.com>
Subject: Re: Zenith-List: Instrument panel labels
--> Zenith-List message posted by: Michel Therrien <mtherr@yahoo.com>
I plan on doing like shown on this page:
http://home.hiwaay.net/~sbuc/journal/panel2.html
Michel
--- George Swinford <grs-pms@attbi.com> wrote:
> --> Zenith-List message posted by: "George Swinford"
> <grs-pms@attbi.com>
>
> I am looking for a neat way to label the switches
> and circuit breakers on my instrument panel. The
> panel will be finished with a flat tan paint. Black
> lettering on the tan may not show up well.
> Suggestions appreciated.
>
> George Swinford
>
>
>
> Contributions
> any other
> Forums.
>
> latest messages.
> List members.
>
> http://www.matronics.com/subscription
> http://www.matronics.com/FAQ/Zenith-List.htm
> Digests:http://www.matronics.com/digest/zenith-list
> http://www.matronics.com/archives
> http://www.matronics.com/photoshare
> http://www.matronics.com/emaillists
>
>
>
>
>
=====
----------------------------
Michel Therrien CH601-HD
http://mthobby.pcperfect.com/ch601
http://www.zenithair.com/bldrlist/profiles/mthobby
http://pages.infinit.net/mthobby
__________________________________
Message 32
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| Subject: | Follow Up - Terminals/Crimpers... |
--> Zenith-List message posted by: "Don Honabach" <don@pcperfect.com>
As a quick follow up. On the Insulated AMP PIDG connectors there is what
appears to be an open barrel that sort of funnels into the wire entry
point on the connector. When doing the 2nd wire insultation crimp, do
you crimp just before this barrel or do you crimp the barrel?
Thanks!!!
Don
Message 33
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| Subject: | Follow Up - Terminals/Crimpers... |
--> Zenith-List message posted by: "Don Honabach" <don@pcperfect.com>
Sorry guys - posted this to the wrong list....
Don
-----Original Message-----
From: Don Honabach
Subject: Zenith-List: Follow Up - Terminals/Crimpers...
--> Zenith-List message posted by: "Don Honabach" <don@pcperfect.com>
As a quick follow up. On the Insulated AMP PIDG connectors there is what
appears to be an open barrel that sort of funnels into the wire entry
point on the connector. When doing the 2nd wire insultation crimp, do
you crimp just before this barrel or do you crimp the barrel?
Thanks!!!
Don
direct advertising on the Matronics Forums.
Message 34
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|
| Subject: | Re: Instrument panel labels |
--> Zenith-List message posted by: Michel Therrien <mtherr@yahoo.com>
Well Scott, I think your suggestion is very good, but
my inst. panel is done and I won't remove anything
from there! ;-)
I try to update my web site regularly... next update
will be the canopy pages, but it won't be before later
during the week.
do not archive
--- Scott Laughlin <cookwithgas@hotmail.com> wrote:
> --> Zenith-List message posted by: "Scott Laughlin"
> <cookwithgas@hotmail.com>
>
> Michel:
>
> I would go one step further. If you lay out your
> panel, paint it, then
> install the stickers before installing any
> instruments, you can spray a
> clear coat over the stickers and they won't peel
> off. Otherwise you will be
> unhappy with the results after a while. I have had
> good luck with this
> "spray-over" application before and it looks
> professional. Clear coat
> lacquer dries fast and is very shiny, but others
> would work.
>
> Post pictures on your website of what you do. I
> would like to see it.
>
> Scott Laughlin
> www.cooknwithgas.com
>
=====
----------------------------
Michel Therrien CH601-HD
http://mthobby.pcperfect.com/ch601
http://www.zenithair.com/bldrlist/profiles/mthobby
http://pages.infinit.net/mthobby
__________________________________
Message 35
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|
| Subject: | Re: Instrument panel labels |
--> Zenith-List message posted by: "George Swinford" <grs-pms@attbi.com>
Thanks Michel-Great looking panel, isn't it!
George
Do Not Archive
----- Original Message -----
From: "Michel Therrien" <mtherr@yahoo.com>
Subject: Re: Zenith-List: Instrument panel labels
> --> Zenith-List message posted by: Michel Therrien <mtherr@yahoo.com>
>
> I plan on doing like shown on this page:
> http://home.hiwaay.net/~sbuc/journal/panel2.html
>
> Michel
>
> --- George Swinford <grs-pms@attbi.com> wrote:
> > --> Zenith-List message posted by: "George Swinford"
> > <grs-pms@attbi.com>
> >
> > I am looking for a neat way to label the switches
> > and circuit breakers on my instrument panel. The
> > panel will be finished with a flat tan paint. Black
> > lettering on the tan may not show up well.
> > Suggestions appreciated.
> >
> > George Swinford
> >
> >
> >
> > Contributions
> > any other
> > Forums.
> >
> > latest messages.
> > List members.
> >
> > http://www.matronics.com/subscription
> > http://www.matronics.com/FAQ/Zenith-List.htm
> > Digests:http://www.matronics.com/digest/zenith-list
> > http://www.matronics.com/archives
> > http://www.matronics.com/photoshare
> > http://www.matronics.com/emaillists
> >
> >
> >
> >
> >
>
>
> =====
> ----------------------------
> Michel Therrien CH601-HD
> http://mthobby.pcperfect.com/ch601
> http://www.zenithair.com/bldrlist/profiles/mthobby
> http://pages.infinit.net/mthobby
>
> __________________________________
>
>
>
>
>
>
Message 36
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| Subject: | Re: Stratus cooling data |
Seal-Send-Time: Sat, 28 Jun 2003 20:58:14 -0500
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
Hi Bill.
What was your CHT on that trip? Maybe I am expecting too much. My Cht stays
205 to 210 and the oil never above 190. I don't have water temp gauge. Don Walker
----- Original Message -----
From: Bill Morelli
To: zenith-list@matronics.com
Sent: Saturday, June 28, 2003 4:51 PM
Subject: Re: Zenith-List: Stratus cooling data
--> Zenith-List message posted by: Bill Morelli <billvt@together.net>
I also do not have any cooling problems. I just finished a flight with the
ambient temp at 96 deg. My oil gets to 220 and water stays at 210. These
temps are typical for me during the summer months. In winter of course,
they are lower.
I do have a heater core for my cabin heat and I think that extra radiator
area makes a difference.
Regards,
Bill (N812BM - HDS - Tri - Stratus - Vermont - 254.3 flight hrs. - 365
landings, 1 ON ICE!!)
web site -> http://homepages.together.net/~billvt/
At 09:19 PM 6/27/2003 -0500, you wrote:
>--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
>
>Kelly,
>Where is your radiator? If you don't have a heater core on the noncooled
>circuit, it will bring it down 10 to 15 degrees.
> NOW, what do you make of this. My engine runs 205 to 208 in 80
> degrees and runs the same in 92 degrees ambient temp. What does that
> mean. Don Walker HDS
> ----- Original Message -----
> From: The Meiste's
> To: zenith-list@matronics.com
> Sent: Friday, June 27, 2003 8:49 PM
> Subject: Re: Zenith-List: Stratus cooling data
>
>
> --> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
>
> make the mixture rich enough (check by looking at the spark plugs),
>
> John Karnes
> Port Orchard, WA
>
>
> John or anyone else with this Bing CV carb, how difficult is this to do?
> Is it just a matter of popping the top off the carbs & pulling out the
> needle & changing the clip location (down one notch), then reassembling the
> carbs.
> Will by making this needle setting richer lower both water & oil temps, or
> just the water temp?
> My Stratus cruising at 4,000 RPM on a 80 degree day will hit 220 on the
> water, & 240 on the oil pretty fast.
> Hoping this may help matters some .... thanks,
>
> Kelly Meiste
> 601 HD Stratus (58 hrs)
>
>
Message 37
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Seal-Send-Time: Sat, 28 Jun 2003 21:19:44 -0500
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
test results: Soob cooling
We found that heat transfer was good from engine to coolant. CHT read 205 and
water on inlet of radiator was 201. However, water on the outlet of radiator
was only 198. The cooling has been carried by mostly by the heater core in the
nose, which had a 35 degree differential. There was dead air in front of the
radiator, but a good air flow about 6" below the mouth of the radiator (30 inches
back on the belly.)
In order to test coolant flow, a water hose was used to drench radiator. This
kept CHT just below 180 degrees. The maximum radiator differential was about
25 degrees.
Conclusions: The heat transfer to coolant is good. The flow of water is good.
The air flow and the efficiency of the golf radiator are not good. Joe recommended
a new radiator. He didn't like the round tubes and the design efficiency of
the Golf.
One fix may be ducted air to the radiator. Flying home at 1500 ft. the ambient
temp was 73 degrees, and my cht was at the ol' reliable 205. Don W.
----- Original Message -----
From: Don Walker
Subject: Re: Zenith-List: Fw: cooling
I am meeting at 2:00 pm today with a pilot and engineer who has four aircraft,
one of which is a soob powered gyro. He has volunteered to hook probes here and
there on my HDS in order to determine if it is a flow problem or otherwise.
I'll let ya know of any significant results as well as his procedure. Don W
----- Original Message -----
From: Don Honabach
To: zenith-list@matronics.com
Sent: Saturday, June 28, 2003 10:46 AM
Subject: RE: Zenith-List: Fw: cooling
--> Zenith-List message posted by: "Don Honabach" <don@pcperfect.com>
It sounds to me that what needs to happen is some sort of analysis that
finds the best heat transfer rate versus the coolant flow rate. I highly
doubt that us Subaru owners that purchased firewall forward kits, etc.
bought anything that was engineered. My guess is that it was slapped
together and it worked for someone so it was sold to us :o
If any one has any ideas for how to setup a test rig, I'd be more than
happy to participate.
Regards,
Don Honabach
-----Original Message-----
From: Don Walker [mailto:dwalk3dw@msn.com]
To: zenith-list@matronics.com
Subject: Re: Zenith-List: Fw: cooling
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
All aluminum.
----- Original Message -----
From: Benford2@aol.com
To: zenith-list@matronics.com
Sent: Saturday, June 28, 2003 9:26 AM
Subject: Re: Zenith-List: Fw: cooling
--> Zenith-List message posted by: Benford2@aol.com
In a message dated 6/28/2003 7:28:42 AM Mountain Daylight Time,
dwalk3dw@msn.com writes:
>
>
> --> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
>
> I'm no engineer, but this seems to defy my logic. What kind of rpm's
was
> this effective with? don
> ----- Original Message -----
> From: The Meiste's
> To: zenith-list@matronics.com
> Sent: Saturday, June 28, 2003 8:24 AM
> Subject: Re: Zenith-List: Fw: cooling
>
>
> --> Zenith-List message posted by: "The Meiste's"
<meiste@essex1.com>
>
> > we had alot of cooling problems on an ea 81
> >
> > the cure was to slow the water down
> >
> > we put as smaller pulley on the crankshaft
> >
> >
> > end of our problem 2 years ago
> >
> >
> > jack lewis
> > celista bc
> > canada
>
>
>
The idea is to slow down the coolant as it passes across the surfaces
of the
engine water jacket and the innered of the radiator. On iron blocks
and copper
/ brass radiators one needs to slow down the coolant for good heat
transfer.
On aluminum motors using copper / brass rads in needs to speed up a
little
cause the aluminum block transfers heat faster. In my case I am
running an
aluminum Ford V-8 block, aluminum heads and everything thing else on
this beast is
aluminum too. I will be having Rod Davis Racing fabricate me some
custom
aluminum coolers. Indy cars and other high performance all aluminum
motor / rad
combinations move the coolant as fast as possible. It has been
explained to me
that a Indy car circulates coolant through its system, ie, motor /rads
/ coolant
lines about every 4 seconds where as a standard passenger car it takes
15 to
25 seconds to make a complete circuit. I am curious, what kind of
radiators
does ZAC furnish? Is it copper / brass? Plastic tanks and copper
fins? Plastic
tanks and aluminum fins or all aluminum?
Ben Haas. N801BH. Jackson Hole Wy.
direct advertising on the Matronics Forums.
Message 38
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|
| Subject: | Re: Stratus cooling data |
--> Zenith-List message posted by: "The Meiste's" <meiste@essex1.com>
> The rad supplied by ZAC is way larger than the original radiator for the
> Rotax 912, so I believe it should be sufficient for the Stratus as well.
>
> Thilo Kind
Hi Thilo,
Things must have changed, as my installation instructions that came with my
Stratus FWF package from ZAC (in 2000) shows the same rad and mounting
brackets for the 912 installation and the Stratus installation. Only
difference in the instructions is the location of one hose coming from the
rad.
What I now hear is for a 100 HP (Stratus) engine you will need a min of 300
cubic inches of radiator volume for proper cooling. The VW rad supplied by
ZAC in my FWF pac is only about 285 cubic inches. Fine for the 80 HP Rotax
..... but not my 100 HP Stratus.
Kelly
Message 39
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|
--> Zenith-List message posted by: "Don Honabach" <don@pcperfect.com>
Don,
Great information - thanks for posting.
Since I don't have my radiator installed yet, this may not be revelant,
but I've often wondered if the fins on the radiator where angled so that
the air could flow past them 'naturally' (i.e. in parallel with the
wind/air) if you wouldn't get better cooling results. I also wonder if
any one makes radiators that have their cooling fins at made various
angles. It would also be interesting to see if you could mill two halfs
of aluminum block make your own custom radiator - kind of like making
your own custom heat sink for a computer.
Don Honabach
-----Original Message-----
From: Don Walker [mailto:dwalk3dw@msn.com]
Subject: Fw: Zenith-List: Fw: cooling
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
test results: Soob cooling
We found that heat transfer was good from engine to coolant. CHT
read 205 and water on inlet of radiator was 201. However, water on the
outlet of radiator was only 198. The cooling has been carried by mostly
by the heater core in the nose, which had a 35 degree differential.
There was dead air in front of the radiator, but a good air flow about
6" below the mouth of the radiator (30 inches back on the belly.)
In order to test coolant flow, a water hose was used to drench
radiator. This kept CHT just below 180 degrees. The maximum radiator
differential was about 25 degrees.
Conclusions: The heat transfer to coolant is good. The flow of
water is good. The air flow and the efficiency of the golf radiator are
not good. Joe recommended a new radiator. He didn't like the round tubes
and the design efficiency of the Golf. One fix may be ducted air to the
radiator. Flying home at 1500 ft. the ambient temp was 73 degrees, and
my cht was at the ol' reliable 205. Don W.
----- Original Message -----
From: Don Walker
Subject: Re: Zenith-List: Fw: cooling
I am meeting at 2:00 pm today with a pilot and engineer who has four
aircraft, one of which is a soob powered gyro. He has volunteered to
hook probes here and there on my HDS in order to determine if it is a
flow problem or otherwise. I'll let ya know of any significant results
as well as his procedure. Don W
----- Original Message -----
From: Don Honabach
To: zenith-list@matronics.com
Sent: Saturday, June 28, 2003 10:46 AM
Subject: RE: Zenith-List: Fw: cooling
--> Zenith-List message posted by: "Don Honabach" <don@pcperfect.com>
It sounds to me that what needs to happen is some sort of analysis
that
finds the best heat transfer rate versus the coolant flow rate. I
highly
doubt that us Subaru owners that purchased firewall forward kits, etc.
bought anything that was engineered. My guess is that it was slapped
together and it worked for someone so it was sold to us :o
If any one has any ideas for how to setup a test rig, I'd be more than
happy to participate.
Regards,
Don Honabach
-----Original Message-----
From: Don Walker [mailto:dwalk3dw@msn.com]
To: zenith-list@matronics.com
Subject: Re: Zenith-List: Fw: cooling
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
All aluminum.
----- Original Message -----
From: Benford2@aol.com
To: zenith-list@matronics.com
Sent: Saturday, June 28, 2003 9:26 AM
Subject: Re: Zenith-List: Fw: cooling
--> Zenith-List message posted by: Benford2@aol.com
In a message dated 6/28/2003 7:28:42 AM Mountain Daylight Time,
dwalk3dw@msn.com writes:
>
>
> --> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
>
> I'm no engineer, but this seems to defy my logic. What kind of
rpm's
was
> this effective with? don
> ----- Original Message -----
> From: The Meiste's
> To: zenith-list@matronics.com
> Sent: Saturday, June 28, 2003 8:24 AM
> Subject: Re: Zenith-List: Fw: cooling
>
>
> --> Zenith-List message posted by: "The Meiste's"
<meiste@essex1.com>
>
> > we had alot of cooling problems on an ea 81
> >
> > the cure was to slow the water down
> >
> > we put as smaller pulley on the crankshaft
> >
> >
> > end of our problem 2 years ago
> >
> >
> > jack lewis
> > celista bc
> > canada
>
>
>
The idea is to slow down the coolant as it passes across the
surfaces
of the
engine water jacket and the innered of the radiator. On iron blocks
and copper
/ brass radiators one needs to slow down the coolant for good heat
transfer.
On aluminum motors using copper / brass rads in needs to speed up a
little
cause the aluminum block transfers heat faster. In my case I am
running an
aluminum Ford V-8 block, aluminum heads and everything thing else on
this beast is
aluminum too. I will be having Rod Davis Racing fabricate me some
custom
aluminum coolers. Indy cars and other high performance all aluminum
motor / rad
combinations move the coolant as fast as possible. It has been
explained to me
that a Indy car circulates coolant through its system, ie, motor
/rads
/ coolant
lines about every 4 seconds where as a standard passenger car it
takes
15 to
25 seconds to make a complete circuit. I am curious, what kind of
radiators
does ZAC furnish? Is it copper / brass? Plastic tanks and copper
fins? Plastic
tanks and aluminum fins or all aluminum?
Ben Haas. N801BH. Jackson Hole Wy.
direct advertising on the Matronics Forums.
direct advertising on the Matronics Forums.
Message 40
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|
| Subject: | While you were sleeping.... |
--> Zenith-List message posted by: "Jon Croke" <Jon@joncroke.com>
One night, while you were sleeping, one of the world's best light aircraft
engines mysteriously got better!
"TBO for the 912 and 912S series engines was increased from 1200 to 1500
hours"
(Reprinted without permission from Experimenter Magazine, July 2003 Page 5)
How does this happen, all by itself? Maybe the only thing they could find
to improve was the TBO! ?
Jon
701 near completion
near Green Bay, WI
www.joncroke.com
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