Today's Message Index:
----------------------
1. 08:10 AM - Re: Stratus first run-ups (Weston, Jim)
2. 10:24 AM - Re: Stratus first run-ups (HINDE,FRANK (HP-Corvallis,ex1))
3. 02:26 PM - Re: Stratus first run-ups (Larry McFarland)
4. 02:35 PM - Re: Stratus first run-ups (HINDE,FRANK (HP-Corvallis,ex1))
Message 1
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| Subject: | Stratus first run-ups |
--> Stratus-List message posted by: "Weston, Jim" <Jim.Weston@delta.com>
This is an interesting thread. I've had my exhaust headers and muffler
wrapped for the past 215 hours (since 1998). It's a regular inspection
item and no problems so far. I do know that you are only supposed to
use this stuff on stainless steel exhaust systems. Maybe that is what
has been wrong with some of the other systems mentioned here. Maybe
they were mild steel exhausts.
Jim Weston
Concord, Ga.
-----Original Message-----
From: owner-stratus-list-server@matronics.com
[mailto:owner-stratus-list-server@matronics.com] On Behalf Of Bill
Cardell
Subject: RE: Stratus-List: Stratus first run-ups
--> Stratus-List message posted by: Bill Cardell <bill@flyinmiata.com>
I think I'd be looking annually. We've seen some Miata headers just
completely fall apart under the heat wrap, plus I tried it on a turbo
downpipe and it self destructed.
Bill Cardell (TurboDog's Dad)
bill@flyinmiata.com
Flyin' Miata
1-800-359-6957 (sales only)
970-242-3800 (tech support)
http://flyinmiata.com
http://flyinprotege.com
-----Original Message-----
From: Larry McFarland [mailto:larrymc@qconline.com]
Subject: Re: Stratus-List: Stratus first run-ups
--> Stratus-List message posted by: "Larry McFarland"
--> <larrymc@qconline.com>
Bill,
Is this something that happens rapidly or does it
occur over a period of 3 to 5 years? Or would you include this to your
annual inspection?
Larry
Subject: RE: Stratus-List: Stratus first run-ups
> --> Stratus-List message posted by: Bill Cardell <bill@flyinmiata.com>
>
> Larry,
> Please do a periodic check of your exhaust pipes under the wrap.
Experience
> I've had with the wrap is that it takes the welds out, I suspect it is
> concentrating too much heat. Does what it is supposed to (the good
> part), but I'm just scared of what it's doing to the pipes below it.
> YMMV
>
==
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Message 2
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| Subject: | Stratus first run-ups |
--> Stratus-List message posted by: "HINDE,FRANK (HP-Corvallis,ex1)" <frank.hinde@hp.com>
Larry, your engine was still cold, I don't think your EGT's will come up to
operating temp without load...namely the prop installed. What I can tell you
is that your engine WATER will overheat very quickly without the prop on so
you are right to be cautious...
As to the CHT I think this is a waste of time, I do not belive it will give
you useful data.
Do check your mixture settings before going flying, most profitably done
when you do your tie down tests as you will have to have it tied down to do
this..
Frank
Startus, RAM heads 317 hours
-----Original Message-----
From: owner-stratus-list-server@matronics.com
[mailto:owner-stratus-list-server@matronics.com] On Behalf Of Larry
McFarland
Subject: Stratus-List: Stratus first run-ups
--> Stratus-List message posted by: "Larry McFarland"
--> <larrymc@qconline.com>
Hi Guys,
These second runups are after RAM redid the heads.
The engine sounds a little deeper than before, but runs
real smooth without prop but I was reluctant to let it go
more than 10 minutes and not over 2000 rpm
because I'm trying not to exceed temperature limits.
The hoses feel there's water pressure, but I was never certain that the
thermostat had opened or not. Temps got to 955 on EGT, and 155 cylinder
head temps before I shut it down.
Oil pressure was 66 psi............
The question is, what of these things reach recommended limits first? Does
the thermostat open enough to balance cylinder head temps in time or is
there enough coolant bypass flow to keep things in check at higher temps?
Does anyone have a sequence with regard to first runups
or is it just watching oil temps and CHTs? I'd like to hear some of your
experiences at this critical time if you can recall. As you know, there's
little said in the Stratus user's manual about this time.
Getting very close to transporting it to the airport.
Larry McFarland 601HDS
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Message 3
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| Subject: | Re: Stratus first run-ups |
--> Stratus-List message posted by: "Larry McFarland" <larrymc@qconline.com>
Frank,
I finally pushed N601EZ outside and started it again. It ran until the CHT
was 195 deg F and the EGTs were 950 deg F. Oil pressure was 57 PSI as temps
reached 85 deg F. The water warmed up both tubes running to and from the
radiator, so I know the thermostat had opened, so it was finally shut down.
The EIS seems to read everything rather precisely, but for rpm.
The VDO Tach is good at low rpms but goes nuts on aproaching 2000 rpm. It's
wired per directions but something needs to be improved.
The Grand Rapids EIS tach does not indicate rpm at all. Perhaps my "tach
output" on the EIS is not hooked up correctly or "tach output" is a
different "connective term". More research....
Thanks Frank,
Larry
Subject: RE: Stratus-List: Stratus first run-ups
> --> Stratus-List message posted by: "HINDE,FRANK (HP-Corvallis,ex1)"
<frank.hinde@hp.com>
>
> Larry, your engine was still cold, I don't think your EGT's will come up
to
> operating temp without load...namely the prop installed. What I can tell
you
> is that your engine WATER will overheat very quickly without the prop on
so
> you are right to be cautious...
>
> As to the CHT I think this is a waste of time, I do not belive it will
give
> you useful data.
>
> Do check your mixture settings before going flying, most profitably done
> when you do your tie down tests as you will have to have it tied down to
do
> this..
>
> Frank
>
> Startus, RAM heads 317 hours
Message 4
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| Subject: | Stratus first run-ups |
--> Stratus-List message posted by: "HINDE,FRANK (HP-Corvallis,ex1)" <frank.hinde@hp.com>
Yes those numbers confirm my theory. On take off I get slightly over 1400F
EGT.
Do you have a good ground on the VDO tach? I believe the signal comes from
the negative side of the ciol...I.e the one going to the ignitor module. The
tach is counting the rate at which the signal goes between zero and 12 volts
as the volts approach 12 when the ignitor switch is not conducting.
On mine I found the reading was way out all through the rev range...turns
out the switches on the back were set for a six cylinder motor.
Its possible you have a bad coil (low impedance on the low tension side),
i.e the volts are not going up and down as much as they should...You should
have about 1 ohm of resistance, this you can check with your voltmeter. Does
the VDO behave on the second ignition system?...Worth a check to see if it
works better on the other coil.
Hope that helps
Frank
Do not archive
-----Original Message-----
From: owner-stratus-list-server@matronics.com
[mailto:owner-stratus-list-server@matronics.com] On Behalf Of Larry
McFarland
Subject: Re: Stratus-List: Stratus first run-ups
--> Stratus-List message posted by: "Larry McFarland"
--> <larrymc@qconline.com>
Frank,
I finally pushed N601EZ outside and started it again. It ran until the CHT
was 195 deg F and the EGTs were 950 deg F. Oil pressure was 57 PSI as temps
reached 85 deg F. The water warmed up both tubes running to and from the
radiator, so I know the thermostat had opened, so it was finally shut down.
The EIS seems to read everything rather precisely, but for rpm. The VDO Tach
is good at low rpms but goes nuts on aproaching 2000 rpm. It's wired per
directions but something needs to be improved. The Grand Rapids EIS tach
does not indicate rpm at all. Perhaps my "tach output" on the EIS is not
hooked up correctly or "tach output" is a
different "connective term". More research....
Thanks Frank,
Larry
Subject: RE: Stratus-List: Stratus first run-ups
> --> Stratus-List message posted by: "HINDE,FRANK (HP-Corvallis,ex1)"
<frank.hinde@hp.com>
>
> Larry, your engine was still cold, I don't think your EGT's will come
> up
to
> operating temp without load...namely the prop installed. What I can
> tell
you
> is that your engine WATER will overheat very quickly without the prop
> on
so
> you are right to be cautious...
>
> As to the CHT I think this is a waste of time, I do not belive it will
give
> you useful data.
>
> Do check your mixture settings before going flying, most profitably
> done when you do your tie down tests as you will have to have it tied
> down to
do
> this..
>
> Frank
>
> Startus, RAM heads 317 hours
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