Today's Message Index:
----------------------
1. 01:31 AM - Re: cruise speed ? What is the hurry? (Gary Gower)
2. 03:43 AM - Re: Re: STABILIZER DRAIN HOLES? (Dave Austin)
3. 05:00 AM - STABILIZER DRAIN HOLES? (Grant Corriveau)
4. 05:17 AM - "Bearings and Belt Drives" - oh my! (Grant Corriveau)
5. 06:22 AM - Re: "Bearings and Belt Drives" - oh my! (Larry)
6. 07:06 AM - Re: She's Airworthy! - and fuel tank vent question (Larry McFarland)
7. 07:15 AM - Re: 1200 miles (Hinde, Frank George (Corvallis))
8. 07:16 AM - Re: 1200 miles (Hinde, Frank George (Corvallis))
9. 07:20 AM - Re: She's Airworthy! - and fuel tank vent question (Hinde, Frank George (Corvallis))
10. 07:21 AM - Re: "Bearings and Belt Drives" - oh my! (JAPhillipsGA@aol.com)
11. 07:22 AM - Re: Cracked Muffler, Jabiru 3300 on 601HDS (bryanmmartin@comcast.net)
12. 07:29 AM - Re: cruise speed ? What is the hurry? (Hinde, Frank George (Corvallis))
13. 07:38 AM - Re: "Bearings and Belt Drives" - oh my! (Hinde, Frank George (Corvallis))
14. 07:47 AM - Re: Cracked Muffler, Jabiru 3300 on 601HDS (Paul Hartl)
15. 08:12 AM - Re: Re: Tail Tie Down 701 (Leo Corbalis)
16. 08:23 AM - Re: Re: Tail Tie Down 701 (JERICKSON03E@aol.com)
17. 09:10 AM - Re: XL Rudder fairing (N5SL)
18. 09:42 AM - Re: "Bearings and Belt Drives" - oh my! (gary)
19. 11:17 AM - Re: XL Rudder fairing (japhillipsga@aol.com)
20. 01:10 PM - Re: "Bearings and Belt Drives" - oh my! (Ed Jeffko)
21. 01:13 PM - 701 cabin sides with bench mounted rivet tool (Monty Graves)
22. 01:34 PM - Re: cruise speed ? (Thilo Kind)
23. 03:42 PM - Re: Photo Assembly Guide (Dave VanLanen)
24. 06:38 PM - 601XL Trouble with top skin and side cover (Mark Stauffer)
25. 06:38 PM - Re: Re: Tail Tie Down 701 (Chuck Deiterich)
26. 10:11 PM - Re: She's Airworthy! - and fuel tank vent question (Leo Gates)
Message 1
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| Subject: | cruise speed ? What is the hurry? |
--> Zenith-List message posted by: Gary Gower <ggower_99@yahoo.com>
Not a BIG diference, if you enjoy your flight...
Doing some numbers I got this. All in no wind condition, no fuel stops, just playing
with numbers:
1,200 miles trip.
in a 701 at 90 mph (my cruise at 5,000-912S) sight seeing about 13 hrs
in a 601 XL at 135 mph ( list data) about
9 hrs
in a RV (?) at 165 mph (estimated/ imagined speed) about 7.30 hrs
in a Airline (once the ticket booth line, all the security
checks and "normal" airline delays) about 16
hrs :-) :-)
See: whats is the hurry :-) :-)
Im Sorry Frank, couldnt resist...
Saludos
Gary Gower
I fly for fun...
"Hinde, Frank George (Corvallis)" <frank.hinde@hp.com> wrote:
--> Zenith-List message posted by: "Hinde, Frank George (Corvallis)"
Well actually its impossible to have everything in one airplane...
I have family that lives 1200miles away on the other side of the Rockie
mountains...And my Wife wants us to fly ourselves there...Hard to
imagine such a journey in a 701...:)
Frank
Do not archive
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Gary Gower
Subject: Re: Zenith-List: cruise speed ? What is the hurry?
--> Zenith-List message posted by: Gary Gower
I just cant understand why is the hurry? The ZAC airplanes fly great
and easy (At least the 701 does) , I am sure that the faster airplanes
are more faster to land and need aways hard surfaces to land. ZAC
airplanes might be a few MPH slowers but can land with no problem in any
grass strip... Is dificult to have everything in an airplane.
Saludos
Gary Gower.
Dave Austin wrote:
--> Zenith-List message posted by: "Dave Austin"
Frank,
It is not max power as I set the prop to get the 5300 rpm at vac of 25.
Dave Austin 601HDS - 912
Message 2
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| Subject: | Re: STABILIZER DRAIN HOLES? |
--> Zenith-List message posted by: "Dave Austin" <daveaustin2@sprint.ca>
Up here in the north all the inspectors will demand drain holes at the
lowest point in each component and in front of every bulkhead in the
fuselage.
Usually done with a 1/4 bit, and after deburring, put the drill back in the
hole and tilt it backward from the line of flight so that the skin deforms a
bit and acts as a sort of extractor.
Dave Austin 601HDS - 912
Message 3
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| Subject: | STABILIZER DRAIN HOLES? |
--> Zenith-List message posted by: Grant Corriveau <grantc@ca.inter.net>
> Subject: RE: Zenith-List: STABILIZER DRAIN HOLES?
> This is standard procedure. There should be weep holes in low points of the
> fuselage too
I visited my plane immediately after a night of heavy downpour. It was
informative as I found new places to drill some drain holes to let out the
water acculations more quickly.
These were mainly in the center fuselage area between the wings. This is
probably the area where a lot of water runs towards from the tail and both
wings.
--
Grant Corriveau
C-GHTF / HDS
Message 4
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| Subject: | "Bearings and Belt Drives" - oh my! |
--> Zenith-List message posted by: Grant Corriveau <grantc@ca.inter.net>
I would appreciate some thoughts from those of you with mechanical
experience regarding a noise I'm hearing in my CAM100 Honda conversion.
While flying I had a 'squeal' that lasted for a few seconds, then abruptly
quit. There were no other indications and I was unable to reproduce it, so
I 'filed it' in memory and kept flying.
Later, while standing next to the idling engine, I realized there is a low
frequency 'grumbly' or 'grinding?' noise that seems to be coming from the
front of the engine -- possibly from the top pulley of the belt drive...?
(Obviously, with the prop going round 'n round and the belt drive and other
sundry items spinning about, I'm reluctant to get my ears too close...
My engine has only 35 hours on it in 5 years (!) ... yes, I am getting more
than a little impatient with the CAM100 'reliability' - although some of
that lost time was due to other causes besides engine 'issues'...
The belt drive is a maxi-heavy duty sucker with a very large cog-belt. This
belt is kept in alignment by the action of the lower cogwheel on the
driveshaft by some pfm technique that I don't fully understand.
Even so - the belt used to track about 1/8" off the rear edge of the upper
pulley - now I'm wondering if it's increasing to 1/4" ? Or is it just my
imagination? I should have made careful measurements back 'when' but had
too many other issues going on.
The noise, I'm told, could be a belt tracking noise, or could be a bearing
failure. I have heard similar noises in smaller bearing failures on my cars
over the years (such as an alternator bearing failure etc..). I don't have
any experience with cog-belt drives to recognize how this could cause the
noise, but another pilot on the field, with a Subaru belt drive unit says he
gets these low frequency 'grinding' noises when his belt is out of
adjustment fore/aft .
For now this noise is not loud enough to be heard with the engine cowls on
whle sitting inside the cockpit and the engine runs up to full power with no
noticeable excessive vibes... So, I may have to keep flying it until the
noise gets louder and I can spot the problem...? sheeesh ...
My local garage mechanic had a few ideas to look into, and I'd appreciate
any other ideas some may have regarding "Bearings and Belt Drives" - oh my!
Thanks in advance
--
Grant Corriveau
C-GHTF / HDS / CAM100
Message 5
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| Subject: | Re: "Bearings and Belt Drives" - oh my! |
--> Zenith-List message posted by: "Larry" <lrm01@centurytel.net>
Could be several things. A belt system is going to make some noise. If I
didn't feel comfortable with it, I would or have my mechanic pull and check,
replace and/or pack the bearings. Don't get the bearings too tight,
remember when they get hot, they will expand. Belts must track true. If
it's not tracking dead center, you gotta fix it.
Larry Martin, N1345L www.angelfire.com/un/ch701
----- Original Message -----
From: "Grant Corriveau" <grantc@ca.inter.net>
Subject: Zenith-List: "Bearings and Belt Drives" - oh my!
> --> Zenith-List message posted by: Grant Corriveau <grantc@ca.inter.net>
>
> I would appreciate some thoughts from those of you with mechanical
> experience regarding a noise I'm hearing in my CAM100 Honda conversion.
>
> While flying I had a 'squeal' that lasted for a few seconds, then abruptly
> quit. There were no other indications and I was unable to reproduce it,
so
> I 'filed it' in memory and kept flying.
>
> Later, while standing next to the idling engine, I realized there is a low
> frequency 'grumbly' or 'grinding?' noise that seems to be coming from the
> front of the engine -- possibly from the top pulley of the belt drive...?
> (Obviously, with the prop going round 'n round and the belt drive and
other
> sundry items spinning about, I'm reluctant to get my ears too close...
>
> My engine has only 35 hours on it in 5 years (!) ... yes, I am getting
more
> than a little impatient with the CAM100 'reliability' - although some of
> that lost time was due to other causes besides engine 'issues'...
>
> The belt drive is a maxi-heavy duty sucker with a very large cog-belt.
This
> belt is kept in alignment by the action of the lower cogwheel on the
> driveshaft by some pfm technique that I don't fully understand.
>
> Even so - the belt used to track about 1/8" off the rear edge of the upper
> pulley - now I'm wondering if it's increasing to 1/4" ? Or is it just my
> imagination? I should have made careful measurements back 'when' but had
> too many other issues going on.
>
> The noise, I'm told, could be a belt tracking noise, or could be a bearing
> failure. I have heard similar noises in smaller bearing failures on my
cars
> over the years (such as an alternator bearing failure etc..). I don't
have
> any experience with cog-belt drives to recognize how this could cause the
> noise, but another pilot on the field, with a Subaru belt drive unit says
he
> gets these low frequency 'grinding' noises when his belt is out of
> adjustment fore/aft .
>
> For now this noise is not loud enough to be heard with the engine cowls on
> whle sitting inside the cockpit and the engine runs up to full power with
no
> noticeable excessive vibes... So, I may have to keep flying it until the
> noise gets louder and I can spot the problem...? sheeesh ...
>
> My local garage mechanic had a few ideas to look into, and I'd appreciate
> any other ideas some may have regarding "Bearings and Belt Drives" - oh
my!
>
> Thanks in advance
> --
> Grant Corriveau
> C-GHTF / HDS / CAM100
>
>
> --
>
--
Message 6
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| Subject: | Re: She's Airworthy! - and fuel tank vent question |
--> Zenith-List message posted by: Larry McFarland <larrymc@qconline.com>
Paul,
Congratulations, hard work finally won out for you!
If your overflow tube is high enough, it isn't going to suck fuel from
the tank unless you're in some unusual attitude.
My tubes hang 3/4" below the surface of the wings and terminate an inch
below the top of the tank. I've not experienced enough flight with full
tanks to have realized any fuel loss. Low pressure concern assumes
you've got gasoline near the top of the tube.
Larry McFarland - 601HDS at www.macsmachine.com
do not archive
Paul Hartl wrote:
>--> Zenith-List message posted by: "Paul Hartl" <paulhartl@cox.net>
>
>Hi all,
>
>N414PZ, my HDS, just passed her airworthiness inspection today - after 7 only
>short years! Thanks to a few local friends, including 701 builder Win Ellis,
and
>this list, I can finally breath a (short) sigh of relief.
>
>My DAR had a question about the fuel vent on the ZAC-supplied leading edge tank,
>and wondered if it should be shorter, or perhaps terminated differently, in order
to
>avoid a low pressure condition that could suck fuel. Mine is cut off flat (parallel
to
>the underside of the wing) and protrudes 16 mm down from the wing bottom.
>Any comments?
>
>Thanks! Paul
>
>Paul Hartl, 601HDS, Jabiru 3300A, finishing stages
>Flight Simulator 2002/4 Zodiac Website: www.members.cox.net/paulhartl
>Sun Valley, Idaho 83340 208-788-9147
>
>
>
>
Message 7
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--> Zenith-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
Oh I believe me I know...:)
The "regularly" means spring thru Autumn (don't really want to deal with
icing) and the RV and I will be IFR.
Frank
Do not archive
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Ron Lee
Subject: Zenith-List: 1200 miles
--> Zenith-List message posted by: "Ron Lee" <rlee468@comcast.net>
If you are going to fly regularly 1200 miles one way, you have the
wrong airplane. You should be instrament rated, your gages must be
perfect, and it goes on and on. You will get weathered in and have to
take commercial transportation home, then you have to get back to pick
up your plane somehow! Trust me, I've been there.
Ron
Do not archive
Message 8
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--> Zenith-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
True but door to door I can beat the airliner for speed and the Lycoming
will run quite nicely on autofuel...I have enough for just one way
though...:)
Besides, your missing the subtle message here....i want a 200mph
aerobatic airplane...I had to find a way to convince the Wife...Her
Parents live 1200 miles away....:)
Frank
Do not archive
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of ron dewees
Subject: Re: Zenith-List: 1200 miles
--> Zenith-List message posted by: ron dewees <rdewees@mindspring.com>
Ditto Ron,
I have a Mooney that cruses at 160 mph and IFR rating. I find it
cheaper to fly commercial with $4 a gallon fuel.
Ron
do not archive
Ron Lee wrote:
>--> Zenith-List message posted by: "Ron Lee" <rlee468@comcast.net>
>
>If you are going to fly regularly 1200 miles one way, you have the
wrong airplane. You should be instrament rated, your gages must be
perfect, and it goes on and on. You will get weathered in and have to
take commercial transportation home, then you have to get back to pick
up your plane somehow! Trust me, I've been there.
>Ron
>Do not archive
>
>
>
>
Message 9
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| Subject: | She's Airworthy! - and fuel tank vent question |
--> Zenith-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
That is standard but I have to agree with the DAR...the VAN's vents are
cut off at 45 degrees and a bit shorter. They definatly have a positive
effect (i.e pressurise the tank slightly) so filing them at 45 deg is
not a bad idea....
Frank
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Paul Hartl
Subject: Zenith-List: She's Airworthy! - and fuel tank vent question
--> Zenith-List message posted by: "Paul Hartl" <paulhartl@cox.net>
Hi all,
N414PZ, my HDS, just passed her airworthiness inspection today - after 7
only short years! Thanks to a few local friends, including 701 builder
Win Ellis, and this list, I can finally breath a (short) sigh of relief.
My DAR had a question about the fuel vent on the ZAC-supplied leading
edge tank, and wondered if it should be shorter, or perhaps terminated
differently, in order to avoid a low pressure condition that could suck
fuel. Mine is cut off flat (parallel to the underside of the wing) and
protrudes 16 mm down from the wing bottom.
Any comments?
Thanks! Paul
Paul Hartl, 601HDS, Jabiru 3300A, finishing stages Flight Simulator
2002/4 Zodiac Website: www.members.cox.net/paulhartl Sun Valley, Idaho
83340 208-788-9147
Message 10
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| Subject: | Re: "Bearings and Belt Drives" - oh my! |
--> Zenith-List message posted by: JAPhillipsGA@aol.com
Grant, on your possible belt migration. All things being equal it should
remain pretty well centered unless several factors occur. If there is a variance
in the angle between the two wheels the belt travels across. This will cause
"spooling" or just have it travel to the end with least resistance. The second
could be a flaw in the belt at manufacture that causes less flexibility at one
side and this will allow travel toward the "weaker" or more flexible side of
the belt. The last is that gravity can cause a belt to travel. If the barrels
are tilted even a little bit simple gravity will move the belt towards the
ground. This is much more gradual effect and can occur even if the first two
factors are not in the picture. This describes the possible causes for belt shift,
but unfortunately it does not offer the solutions.
I learned about belt problems and the terrible efforts to correct them
from working summers (many years ago) as a machine operator and maintenance
guy at a woolen mill that ran hundreds of machines off dozens of belts. Seen
the movie 'Norma Rae' ? We constantly worked to keep the spinners operating and
lot of it was on the belts. Best of luck and FWIW, Bill of Georgia
Message 11
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| Subject: | Re: Cracked Muffler, Jabiru 3300 on 601HDS |
--> Zenith-List message posted by: bryanmmartin@comcast.net
Jabiru has an AD on some exhaust systems because the flanges were MIG welded instead
of TIG welded. The pipes cracked right at the welds. The weld should be
concave not convex. I don't know if this applies to your problem. A member of
my EAA chapter had this problem and I believe He downloaded the AD from Jabiru's
website.
-------------- Original message --------------
> --> Zenith-List message posted by: charles.long@gm.com
>
>
> I have a cracked muffler after only 15 hr TT on my 601 HDS with
> Jabiru 3300. A couple things to note. First, the fit was very tight
> between the muffler pipes and header pipes. In retrospect, I should > Thanks
> Chuck Long
> N601LE, 15 hr TT
>
>
Jabiru has an AD on some exhaust systems because the flanges were MIG welded instead
of TIG welded. The pipes cracked right at the welds. The weld should be
concave not convex. I don't know if this applies to your problem. A member of
my EAA chapter had this problem and I believe He downloaded the AD from Jabiru's
website.
-------------- Original message --------------
-- Zenith-List message posted by: charles.long@gm.com
I have a cracked muffler after only 15 hr TT on my 601 HDS with
Jabiru 3300. A couple things to note. First, the fit was very tight
between the muffler pipes and header pipes. In retrospect, I should Thanks
Chuck Long
N601LE, 15 hr TT
Message 12
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| Subject: | cruise speed ? What is the hurry? |
--> Zenith-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
Missing one small point...(assuming IFR capability) altitude capability
is up to about 22000 ft...There are some awesome tailwinds up there...:)
Cruise speed of a good RV7 is roughly 180mph (lean of peak) and 200(rich
of peak)...These are real numbers, not the fantasy claims of some other
kit manufacturers...I can hardly wait...:)
Now how many times will I make this fabled journey?...Never hopefully,
my Mother in Law is not the most fun person to be around...ha ha..:)
Frank...
Do not archive
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Gary Gower
Subject: RE: Zenith-List: cruise speed ? What is the hurry?
--> Zenith-List message posted by: Gary Gower <ggower_99@yahoo.com>
Not a BIG diference, if you enjoy your flight...
Doing some numbers I got this. All in no wind condition, no fuel stops,
just playing with numbers:
1,200 miles trip.
in a 701 at 90 mph (my cruise at 5,000-912S) sight seeing about 13
hrs
in a 601 XL at 135 mph ( list data)
about 9 hrs
in a RV (?) at 165 mph (estimated/ imagined speed) about 7.30
hrs
in a Airline (once the ticket booth line, all the security
checks and "normal" airline delays)
about 16 hrs :-) :-)
See: whats is the hurry :-) :-)
Im Sorry Frank, couldnt resist...
Saludos
Gary Gower
I fly for fun...
"Hinde, Frank George (Corvallis)" <frank.hinde@hp.com> wrote:
--> Zenith-List message posted by: "Hinde, Frank George (Corvallis)"
Well actually its impossible to have everything in one airplane...
I have family that lives 1200miles away on the other side of the Rockie
mountains...And my Wife wants us to fly ourselves there...Hard to
imagine such a journey in a 701...:)
Frank
Do not archive
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Gary Gower
Subject: Re: Zenith-List: cruise speed ? What is the hurry?
--> Zenith-List message posted by: Gary Gower
I just cant understand why is the hurry? The ZAC airplanes fly great and
easy (At least the 701 does) , I am sure that the faster airplanes are
more faster to land and need aways hard surfaces to land. ZAC airplanes
might be a few MPH slowers but can land with no problem in any grass
strip... Is dificult to have everything in an airplane.
Saludos
Gary Gower.
Dave Austin wrote:
--> Zenith-List message posted by: "Dave Austin"
Frank,
It is not max power as I set the prop to get the 5300 rpm at vac of 25.
Dave Austin 601HDS - 912
Message 13
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| Subject: | "Bearings and Belt Drives" - oh my! |
--> Zenith-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
I would probably pull the belt off and spin the prop slowly by hand to
see if you can feel ANY roughness...By the time you have the belt off
(at least on the Stratus) its not much more work to pull the prop
bearings out, and even though they are large they are pretty cheap to
replace.
Frank
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Larry
Subject: Re: Zenith-List: "Bearings and Belt Drives" - oh my!
--> Zenith-List message posted by: "Larry" <lrm01@centurytel.net>
Could be several things. A belt system is going to make some noise.
If I
didn't feel comfortable with it, I would or have my mechanic pull and
check, replace and/or pack the bearings. Don't get the bearings too
tight, remember when they get hot, they will expand. Belts must track
true. If it's not tracking dead center, you gotta fix it.
Larry Martin, N1345L www.angelfire.com/un/ch701
----- Original Message -----
From: "Grant Corriveau" <grantc@ca.inter.net>
Subject: Zenith-List: "Bearings and Belt Drives" - oh my!
> --> Zenith-List message posted by: Grant Corriveau
> --> <grantc@ca.inter.net>
>
> I would appreciate some thoughts from those of you with mechanical
> experience regarding a noise I'm hearing in my CAM100 Honda
conversion.
>
> While flying I had a 'squeal' that lasted for a few seconds, then
> abruptly quit. There were no other indications and I was unable to
> reproduce it,
so
> I 'filed it' in memory and kept flying.
>
> Later, while standing next to the idling engine, I realized there is a
> low frequency 'grumbly' or 'grinding?' noise that seems to be coming
> from the front of the engine -- possibly from the top pulley of the
belt drive...?
> (Obviously, with the prop going round 'n round and the belt drive and
other
> sundry items spinning about, I'm reluctant to get my ears too close...
>
> My engine has only 35 hours on it in 5 years (!) ... yes, I am getting
more
> than a little impatient with the CAM100 'reliability' - although some
> of that lost time was due to other causes besides engine 'issues'...
>
> The belt drive is a maxi-heavy duty sucker with a very large cog-belt.
This
> belt is kept in alignment by the action of the lower cogwheel on the
> driveshaft by some pfm technique that I don't fully understand.
>
> Even so - the belt used to track about 1/8" off the rear edge of the
> upper pulley - now I'm wondering if it's increasing to 1/4" ? Or is it
> just my imagination? I should have made careful measurements back
> 'when' but had too many other issues going on.
>
> The noise, I'm told, could be a belt tracking noise, or could be a
> bearing failure. I have heard similar noises in smaller bearing
> failures on my
cars
> over the years (such as an alternator bearing failure etc..). I don't
have
> any experience with cog-belt drives to recognize how this could cause
> the noise, but another pilot on the field, with a Subaru belt drive
> unit says
he
> gets these low frequency 'grinding' noises when his belt is out of
> adjustment fore/aft .
>
> For now this noise is not loud enough to be heard with the engine
> cowls on whle sitting inside the cockpit and the engine runs up to
> full power with
no
> noticeable excessive vibes... So, I may have to keep flying it until
> the noise gets louder and I can spot the problem...? sheeesh ...
>
> My local garage mechanic had a few ideas to look into, and I'd
> appreciate any other ideas some may have regarding "Bearings and Belt
> Drives" - oh
my!
>
> Thanks in advance
> --
> Grant Corriveau
> C-GHTF / HDS / CAM100
>
>
> --
>
--
Message 14
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| Subject: | Re: Cracked Muffler, Jabiru 3300 on 601HDS |
--> Zenith-List message posted by: "Paul Hartl" <paulhartl@cox.net>
Hi Chuck,
I talked to Jabiru about this, as I had screwed up the welding on the
tailpipes on mine, and considered a new one - $450, or cutting off
and modifying the incorrectly welded tailpipes. Ben at Jabiru USA
said that there were a batch of bad mufflers that came from their
source in Australia, and that all of these had the MIG welds instead
of the TIG welds. Jabiru Australia's website talks about these, and
possible fix, but Ben also said that most of the MIG-welded
mufflers were holding up, and only some were problematic. He suspects
improper metal used for the muffler body itself.
So the upshot is that Jabiru will replace a bad muffler for free, but not
until it fails. I didn't think it would be worth trying to salvage my messed-up
mufflers after hearing that story, so I decided to try the "Swiss" (or is it Swedish?)
mufflers that Joe Edwards is using (detailed in Tony Bingelis's book - also
available on line - just Google "Swiss muffler"). I'm glad I did - so far.
These Swiss mufflers are amazingly quiet, relatively easy to make, and
require no welding. On the down side, they're heavier, draggier, you have
to re-fashion your carb heat and cabin heat muffs, and may require some
adjustments over time. One other positive, though, is that my cabin heat
muff now draws off of a solid piece of exhaust pipe, with none of the potential
for cracks to develop and CO to be entrained that the Jab-muffler heat-muff
has.
Hope this helps!
Paul
Paul Hartl, 601HDS, Jabiru 3300A, finishing stages
Flight Simulator 2002/4 Zodiac Website: www.members.cox.net/paulhartl
Sun Valley, Idaho 83340 208-788-9147
Message 15
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| Subject: | Re: Tail Tie Down 701 |
--> Zenith-List message posted by: "Leo Corbalis" <leocorbalis@sbcglobal.net>
I have a 601HDS TD in which I have made several "carrier landings" . I can
assure you that the tail cone is strong enough!
Leo Corbalis
do not archive
----- Original Message -----
From: <RURUNY@aol.com>
Subject: Zenith-List: Re: Tail Tie Down 701
> --> Zenith-List message posted by: RURUNY@aol.com
>
>
> Jim,
>
> I was thinking about beefing this up and installing an eyebolt there in
> the
> future but
> I went with the Zenith design because it is basically the toughest thing
> in
> the rear tail area. The longerons and skin its attached to isn't exactly
> the
> most robust thing
> I've ever seen. Without beefing up the whole tail area, I don't know if it
> would be worth it.
> I'm not flying mine yet so take this for what its worth.
>
> Brian
>
>
>
Message 16
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| Subject: | Re: Tail Tie Down 701 |
--> Zenith-List message posted by: JERICKSON03E@aol.com
In a message dated 7/25/2005 11:32:26 PM Central Daylight Time,
RURUNY@aol.com writes:
I was thinking about beefing this up and installing an eyebolt there in the
future but
Been thinking about a tail skid for tail protection and a tie down hard
point.
Any ideas for a design to fit the 701?
Perhaps something like the skid on the 2000?
Jerry
Message 17
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| Subject: | Re: XL Rudder fairing |
--> Zenith-List message posted by: N5SL <nfivesl@yahoo.com>
Hi Rico:
Although this part was a little frustrating, it fit nicely into place with a little trimming - of the rudder and the fiberglass part. http://www.cooknwithgas.com/4_24_05_tailhorn.JPG
Mine tucks under nicely and holds down tight with just four clecos. I'll probably
put one rivet in the front part that tucks under the aluminum.
Take your time and trim a little each time and it should fit just fine.
Scott Laughlin
601XL/Corvair
William came through! I have my prop hub now.
www.cooknwithgas.com
DO NOT ARCHIVE
--> Zenith-List message posted by: Rico Voss
Fellow fiberglass itchers,
There's been some people that have attached the fiberglass
rudder fairing to the rear topskin -- by putting the
fiberglass piece on top
---------------------------------
Message 18
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| Subject: | Re: "Bearings and Belt Drives" - oh my! |
--> Zenith-List message posted by: "gary" <FlyinK@Efortress.com>
> Even so - the belt used to track about 1/8" off the rear edge of the upper
> pulley - now I'm wondering if it's increasing to 1/4" ? Or is it just my
> imagination? I should have made careful measurements back 'when' but had
> too many other issues going on.
>
on the Stratus, a tool is provided to measure between the top and bottom
pulleys. measure in front and in back and they must be within a few
thousandths.
gary
Message 19
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| Subject: | Re: XL Rudder fairing |
--> Zenith-List message posted by: japhillipsga@aol.com
Scott, saw your photo and looks like fine workmanship. Concerning the rudder cover.
I would recomend you put a thin piece of carboard under the sides on top
of the stabilizer and file up until th hole match. The reason is I had my cover
touching the surface in a couple places and in only a couple flights it wore
thru the paint and started working on the metal. The stabilizer does move up
and down and tilt a bit as you manuver, FWIW, Best regards, Bill of Georgia
-----Original Message-----
From: N5SL <nfivesl@yahoo.com>
Subject: Re: Zenith-List: XL Rudder fairing
--> Zenith-List message posted by: N5SL <nfivesl@yahoo.com>
Hi Rico:
Although this part was a little frustrating, it fit nicely into place with a
little trimming - of the rudder and the fiberglass part. http://www.cooknwithgas.com/4_24_05_tailhorn.JPG
Mine tucks under nicely and holds down tight with just four clecos. I'll
probably put one rivet in the front part that tucks under the aluminum.
Take your time and trim a little each time and it should fit just fine.
Scott Laughlin
601XL/Corvair
William came through! I have my prop hub now.
www.cooknwithgas.com
DO NOT ARCHIVE
--> Zenith-List message posted by: Rico Voss
Fellow fiberglass itchers,
There's been some people that have attached the fiberglass
rudder fairing to the rear topskin -- by putting the
fiberglass piece on top
---------------------------------
Message 20
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| Subject: | Re: "Bearings and Belt Drives" - oh my! |
--> Zenith-List message posted by: "Ed Jeffko" <riovista@bossig.com>
Grant,
Get a stethescope, mechanics have them for locating noises. You could also
get a long screwdriver, put the handle against your ear, move the blade
around to locate the noise. You might want to remove the prop. A good
bearing will sound smooth, grinding is a no no. Above all, don't fly
until you trouble shoot, by the time you hear the noise in the cockpit you
will be looking for a place to land.
My opinions only.
Ed
----- Original Message -----
From: "Grant Corriveau" <grantc@ca.inter.net>
Subject: Zenith-List: "Bearings and Belt Drives" - oh my!
> --> Zenith-List message posted by: Grant Corriveau <grantc@ca.inter.net>
>
> I would appreciate some thoughts from those of you with mechanical
> experience regarding a noise I'm hearing in my CAM100 Honda conversion.
>
> While flying I had a 'squeal' that lasted for a few seconds, then abruptly
> quit. There were no other indications and I was unable to reproduce it,
so
> I 'filed it' in memory and kept flying.
>
> Later, while standing next to the idling engine, I realized there is a low
> frequency 'grumbly' or 'grinding?' noise that seems to be coming from the
> front of the engine -- possibly from the top pulley of the belt drive...?
> (Obviously, with the prop going round 'n round and the belt drive and
other
> sundry items spinning about, I'm reluctant to get my ears too close...
>
> My engine has only 35 hours on it in 5 years (!) ... yes, I am getting
more
> than a little impatient with the CAM100 'reliability' - although some of
> that lost time was due to other causes besides engine 'issues'...
>
> The belt drive is a maxi-heavy duty sucker with a very large cog-belt.
This
> belt is kept in alignment by the action of the lower cogwheel on the
> driveshaft by some pfm technique that I don't fully understand.
>
> Even so - the belt used to track about 1/8" off the rear edge of the upper
> pulley - now I'm wondering if it's increasing to 1/4" ? Or is it just my
> imagination? I should have made careful measurements back 'when' but had
> too many other issues going on.
>
> The noise, I'm told, could be a belt tracking noise, or could be a bearing
> failure. I have heard similar noises in smaller bearing failures on my
cars
> over the years (such as an alternator bearing failure etc..). I don't
have
> any experience with cog-belt drives to recognize how this could cause the
> noise, but another pilot on the field, with a Subaru belt drive unit says
he
> gets these low frequency 'grinding' noises when his belt is out of
> adjustment fore/aft .
>
> For now this noise is not loud enough to be heard with the engine cowls on
> whle sitting inside the cockpit and the engine runs up to full power with
no
> noticeable excessive vibes... So, I may have to keep flying it until the
> noise gets louder and I can spot the problem...? sheeesh ...
>
> My local garage mechanic had a few ideas to look into, and I'd appreciate
> any other ideas some may have regarding "Bearings and Belt Drives" - oh
my!
>
> Thanks in advance
> --
> Grant Corriveau
> C-GHTF / HDS / CAM100
>
>
Message 21
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| Subject: | 701 cabin sides with bench mounted rivet tool |
--> Zenith-List message posted by: Monty Graves <mgraves@usmo.com>
Just want to confirm from a previous discussion. Today I finished one of
my 701 cabin sides using the bench mounted tool on the www.ch701.com web
site to do ALL the solid AD rivets. And they turned out nice.
Reach wasn't a problem. However I did have to cut the nose off of my top
piece a few fractions so that the bolt was a little closer to the
end. Making it able to set a rivet within 3/4 inch from the end, and do
the rivets in the bottom corner . Not a big deal or modification. The
only trick to using the riveter on the cabin sides is.... one needs to
rivet the bottom line of rivets to the floor pan and .040 corner doubler
FIRST other wise the side angles get in the way.
Want to again thank Jon and Mark for coming up with this inexpensive tool.
Pictures of the complete modifications of the bench mounted riveter will be
on the 701builders yahoo site.
Also pictures I took of Zeniths factory cabin side, And the cut outs of
mine. As well as mistakes I made, and what I would do different so others
might not make the same ones I did. Just different ones.... :-)
Monty Graves
Message 22
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| Subject: | Re: cruise speed ? |
--> Zenith-List message posted by: "Thilo Kind" <thilo.kind@gmx.net>
Hi folks,
I get 120 mph with Woodcomp inflight adjustable prop, Rotax 912 at 5,100
RPM, water rad inside cowling, no wheel pants, at 2,000 MSL.
Happy flying
Thilo Kind
----- Original Message -----
From: "Richard McLachlan" <richard@rodsley.net>
Subject: Re: Zenith-List: cruise speed ?
> --> Zenith-List message posted by: "Richard McLachlan"
<richard@rodsley.net>
>
> You are lucky.
>
> On our 601HDS trike with wheel spats we only get 102 mph IAS with a Rotax
> 912, Warp Drive prop fixed at 13 degrees and 5000 RPM. When the OAT is
above
> about 25 degrees C, we have to run at 4800 RPM or less to keep the oil
temp
> down to 110 degrees C. This lowers the cruise speed to 95 mph IAS. We have
> the Rotax oil rad inside the cowling. We used to have a more efficient oil
> rad which worked better, but had to remove it and fit the (inferior) Rotax
> model to allow the 912 TBO to be increased from 500 hours to 1500 hours.
>
> Richard
>
> ----- Original Message -----
> From: "Dave Austin" <daveaustin2@sprint.ca>
> To: <zenith-list@matronics.com>
> Subject: Re: Zenith-List: cruise speed ?
>
>
> > --> Zenith-List message posted by: "Dave Austin" <daveaustin2@sprint.ca>
> >
> > With Rotax 912, Arplast air adjustable prop, radiator and oil rad inside
> the
> > cowl, my HDS trike will cruise at 120 mph IAS using 5300 rpm
> > Dave Austin 601HDS - 912
> >
> >
>
>
Message 23
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| Subject: | Re: Photo Assembly Guide |
--> Zenith-List message posted by: "Dave VanLanen" <davevanlanen@sbcglobal.net>
Thanks to everyone on the list for your help with this question. I can
already see the value in this list, and I haven't even started building yet!
Dave Van Lanen
Madison, WI
601XL
Do Not Archive
Message 24
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| Subject: | 601XL Trouble with top skin and side cover |
--> Zenith-List message posted by: "Mark Stauffer" <mark.stauffer@cablespeed.com>
Fellow builders,
I'm working on the side covers that go along the canopy arms at the pivot
point. The side cover binds with the top skin when trying to open the
canopy. I've got the top skin cut back as far as I can from the bend radius
of the panel side angle without blowing the edge distance. I really don't
want to cut the side cover down anymore either because it won't look right.
I've only done one side and maybe it will be ok when I've got the rear
canopy frame installed but I don't think so. Has anyone else run into this
and if so how did you solve it. All I can come up with now is bending the
welded tab a little more outboard and see if that helps.
A bit of caution. I bought my kit in Jan '03, SN:4999. I always download the
newest chapter of the photo guide before I start a new section. I also
bought an updated set of plans about 6 months ago. Well, the photo guide
uses the new side cover and I tried (didn't notice is a better explanation)
it with the older parts. Well, that didn't work. Zenith did come through and
send me the new parts at no cost, BUT the tab on the canopy arms is welded
at the old angle. Just be careful, once again I wasn't paying 100%
attention!
I wonder if I should go back and make the side cover the old way, with the
rubber seal and everything. It's not nearly as nice a fit as the new way
though. Hopefully I can work through this one.
Thanks for any thoughts or ideas.
Mark Stauffer
601XL Still messing with the canopy
Odenton, MD
August 2&3 Jabiru Class
Do not archive
Message 25
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| Subject: | Re: Tail Tie Down 701 |
--> Zenith-List message posted by: "Chuck Deiterich" <cfd@thegateway.net>
Roger's 701 (from ZAC) has an eyebolt for the rear tie down, as does mine.
Chuck D.
N701TX
----- Original Message -----
From: <RURUNY@aol.com>
Subject: Zenith-List: Re: Tail Tie Down 701
> --> Zenith-List message posted by: RURUNY@aol.com
>
>
> Jim,
>
> I was thinking about beefing this up and installing an eyebolt there in
the
> future but
> I went with the Zenith design because it is basically the toughest thing
in
> the rear tail area. The longerons and skin its attached to isn't exactly
the
> most robust thing
> I've ever seen. Without beefing up the whole tail area, I don't know if it
> would be worth it.
> I'm not flying mine yet so take this for what its worth.
>
> Brian
>
>
Message 26
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| Subject: | Re: She's Airworthy! - and fuel tank vent question |
--> Zenith-List message posted by: "Leo Gates" <leogates@allvantage.com>
Rather than file my vent tubes and give me place to scrape my bald head, I
slipped on a 2" length of rubber fuel line cut to a 45 degree angle on the
bottom. Much easier on my head.
Leo Gates
N601Z
-------Original Message-------
From: zenith-list@matronics.com
Subject: Zenith-List: She's Airworthy! - and fuel tank vent question
--> Zenith-List message posted by: "Paul Hartl" <paulhartl@cox.net>
Hi all,
My DAR had a question about the fuel vent on the ZAC-supplied leading edge
tank,
and wondered if it should be shorter, or perhaps terminated differently, in
order to
avoid a low pressure condition that could suck fuel. Mine is cut off flat
(parallel to
the underside of the wing) and protrudes 16 mm down from the wing bottom.
Any comments?
Thanks! Paul
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