Today's Message Index:
----------------------
1. 12:34 AM - Re: 912 hard start when hot (Richard McLachlan)
2. 03:51 AM - Re: mixed building (ronnie wehba)
3. 08:17 AM - Re: 912 hard start when hot (Thomas F Marson)
4. 08:44 AM - plans building (Brett Hanley)
5. 11:16 AM - Mike Sinclair's photos (Scott Laughlin)
6. 02:57 PM - Re: Mike Sinclair's photos (Mike Sinclair)
7. 04:57 PM - Re:Second greatest thirill (Ron DeWees)
8. 06:30 PM - front wheel bearing failure - CH601XL, stock Matco wheel (xl)
9. 07:15 PM - Sun n Fun DVD Flite Line video (Jon Croke)
Message 1
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| Subject: | Re: 912 hard start when hot |
--> Zenith-List message posted by: "Richard McLachlan" <richard@rodsley.net>
Here in the UK you have to go through a long series of signed off checks
before you are allowed to run on mogas. This has been strictly enforced
recently due to an accident last year which was purportedly caused by vapour
lock. Details here.
http://www.dft.gov.uk/stellent/groups/dft_avsafety/documents/page/dft_avsafe
ty_026169.hcsp
The main part of this involves fitting a vapour return line from the high
pressure feed to the carbs back to the fuel tank above the liquid level. Try
filling the tank with avgas and see if the problem still occurs.
----- Original Message -----
From: "Ronnie Koonce" <rlk@granderiver.net>
Subject: Zenith-List: 912 hard start when hot
> --> Zenith-List message posted by: "Ronnie Koonce" <rlk@granderiver.net>
>
> thanks Richard, Dave, Frank and Rick. Doesn't seem to be ignition related.
Changed plug gaps to .020. No help. Let me give a better description of my
problem. Engine starts fine when cool. Runs great, full power climbing as
long as you can stand it. In flight, current weather, 4000 r.p.m.. temps
stabilize around 180 water and oil. If you land and shut down, will not
start at all using any combination of inputs. choke/no choke (enricher).
Throttle /no throttle. cussing/praying. boost pump/no boost. After 30 minute
cool down starts fine.
> If you land and let idle for 10 or so minutes, (I know this is not
good for engine, but has been part of trying to find problem) when you take
off, r.p.m. will drop off around 3500 or 4000 and engine won't make full
power. sometimes will die completely. To simulate this on ground I let idle
until temps got to around 200 oil and 225 water. Advance throttle and engine
stumbles around 3500. Doing mag check during stumble causes no change, so
I'm thinking this rules out ignition.? Boost pump causes slight but not much
smoother running. Shut off engine. Do immediate infrared temperature check
of carb float bowls, get reading of 170 F. Pull bowls of right after
removing top cowl, bowls are both at proper level. Running 92 octane mogas.
Ambient temp lately in the high 70's.
> I'm out of ideas and will try anything. Thanks.
>
>
Message 2
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| Subject: | Re: mixed building |
--> Zenith-List message posted by: "ronnie wehba" <rwehba@wtxs.net>
hey scott, you have a link to the rest of mikes 701 site?
----- Original Message -----
From: "Scott Laughlin" <cookwithgas@hotmail.com>
Subject: Re: Zenith-List: mixed building
> --> Zenith-List message posted by: "Scott Laughlin"
<cookwithgas@hotmail.com>
>
> Dear Sudhir:
>
> "Easy" is subjective. What I find difficult may be easy for somebody else.
> What you need is determination, some common sense a bit of patience and
> maybe a little help from your friends.
>
> Have you purchased the plans yet? If you take a look at the plans, and
> study them, you will find parts you want to build right away and parts
that
> make you scratch your head a little before attempting. You have to invest
a
> lot of your time just to figure out some of the nomenclature on the
drawings
> especially when you are building parts.
>
> The first thing you need to find out is if you enjoy it. I enjoy every
> minute of it. If you don't enjoy it, you probably won't finish. This is
a
> project that will take years to complete, so take your time, do a good job
> and have fun.
>
> Best of luck with your decision,
>
> Scott Laughlin
> http://www.cooknwithgas.com/
>
>
> ----Original Message Follows----
> From: etn industries limited <sudhir19_us@yahoo.com>
> To: zenith-list@matronics.com
> Subject: Re: Zenith-List: mixed building
> Date: Fri, 7 May 2004 17:19:26 -0700 (PDT)
>
> --> Zenith-List message posted by: etn industries limited
> <sudhir19_us@yahoo.com>
>
> yeah randy , i was kinda awre o it,, but that was my question....which
parts
> can we build easily with plans only?
>
> "Randy L. Thwing" <n4546v@mindspring.com> wrote:--> Zenith-List message
> posted by: "Randy L. Thwing"
>
> Hello Sud:
>
> One of the beauties of building a Zenith Aircraft is:
>
> 1. Zenair will sell you Plans only.
> 2. Zenair will sell you a complete kit right down to the last rivet.
> 3. Zenair will sell you any individual part in between, as needed.
>
> Well. maybe that's three beauties, you can build what you can and buy
> the rest.
>
> Regards,
> Randy L. Thwing, 701 plans
>
>
> : Zenith-List: mixed building
>
>
> > --> Zenith-List message posted by: etn industries limited
>
> > so is it possible that "easy" parts i build by myself and the tough
ones
> which i often see u guys talk abt.,,,i build from kit,,
> > best regards,
> > sudhir wadhwa
>
>
> best regards,
> sudhir wadhwa
> Room no. 204 , no.22 ,lane 303,
> Caoyang road, Shanghai 200063
> China
> 0086-13757501606
> 13157552197
> 575- 8067856{fax}
> http://itrademarket.com/etnindustries
>
>
> ---------------------------------
>
>
Message 3
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| Subject: | Re: 912 hard start when hot |
--> Zenith-List message posted by: "Thomas F Marson" <tmarson@pressenter.com>
Most of these symptoms sound like vapor lock in a line. That is where it
would be. The high temp in the fuel bowls seems like a significant clue. I
would guess the fuel lines and fuel pump are at least that hot too---- maybe
more.
If you try 100ll and that cures it you can bet vapor lock. Then next
question is how to resolve it. Lots of Ideas there Tom Marson
----- Original Message ----- >
> Sure you don't have vapor lock in gas line ?? Mine does that with mogas
> ----- Original Message -----
> >
> > --> > > thanks Richard, Dave, Frank and Rick. Doesn't seem to be
ignition related.
> Changed plug gaps to .020. No help. Let me give a better description of my
> problem. Engine starts fine when cool. Runs great, full power climbing as
> long as you can stand it. In flight, current weather, 4000 r.p.m.. temps
> stabilize around 180 water and oil. If you land and shut down, will not
> start at all using any combination of inputs. choke/no choke (enricher).
> Throttle /no throttle. cussing/praying. boost pump/no boost. After 30
minute
> cool down starts fine.
> > If you land and let idle for 10 or so minutes, (I know this is not
> good for engine, but has been part of trying to find problem) when you
take
> off, r.p.m. will drop off around 3500 or 4000 and engine won't make full
> power. sometimes will die completely. To simulate this on ground I let
idle
> until temps got to around 200 oil and 225 water. Advance throttle and
engine
> stumbles around 3500. Doing mag check during stumble causes no change, so
> I'm thinking this rules out ignition.? Boost pump causes slight but not
much
> smoother running. Shut off engine. Do immediate infrared temperature check
> of carb float bowls, get reading of 170 F. Pull bowls of right after
> removing top cowl, bowls are both at proper level. Running 92 octane
mogas.
> Ambient temp lately in the high 70's.
> > I'm out of ideas and will try anything. Thanks.
> >
> >
>
>
Message 4
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--> Zenith-List message posted by: Brett Hanley <bretttdc@yahoo.com>
Plans builders will always be around in large numbers.
The raw materials to build a light aircraft are not
very expensive. For me plans building is the
difference between flying and not flying. Zenith and
others offer great kit products at a fair price. I
have seen the Zenith kits and the quality is
excellent. Having all the pieces on the day you start
is sure to save a lot of time. Combing through
catalogs, doing material take offs, researching and
ordering is a big part of plans building. Its all a
balance between available time, available cash and how
much research you are willing to do.
Brett
__________________________________
http://hotjobs.sweepstakes.yahoo.com/careermakeover
Message 5
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| Subject: | Mike Sinclair's photos |
--> Zenith-List message posted by: "Scott Laughlin" <cookwithgas@hotmail.com>
----Original Message Follows----
From: "ronnie wehba" <rwehba@wtxs.net>
"hey scott, you have a link to the rest of mikes 701 site?"
Hi Ronnie:
As far as I know, Mike Sinclair does not keep a website. That's why I
posted his photos. I have more photos of his airplane I could post if he
doesn't mind. He's doing a great job on his 701 and very close to being
finished.
Scott Laughlin
http://www.cooknwithgas.com/
Message 6
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| Subject: | Re: Mike Sinclair's photos |
--> Zenith-List message posted by: Mike Sinclair <mike.sinclair@att.net>
Scott (and Ronnie)
I don't have a problem with you posting any of the other pictures. As a matter
of
fact I intend to send a couple more sometime this week (if not tomorrow since I
should have the cowl back on then). It is all together, and painted, just got
some detail work to finish up. Done a WW2 invasion paint scheme complete with
stars and black & white stripes that really looks good with the tail dragger
mode. Although when I played with the paint a bit, I decided that olive drab
wasn't going to cut it. It is "Olive-not-so-drab". Most definitely has a shine.
Think you will be suprised at the look. Hoping for inspection sometime in the
next two weeks. My DAR (was my EAA tech counselor but will be putting on his FAA
hat on the next visit) is currently out of the country, but should be back
shortly. First flight should be around the end of the month. Gotta get my 40
flown off so I can get to Oshkosh this summer. Then I might have time to build
a
web site of my own. Later
Mike Sinclair
N701TD
Do Not Archive
Scott Laughlin wrote:
> --> Zenith-List message posted by: "Scott Laughlin" <cookwithgas@hotmail.com>
>
> ----Original Message Follows----
> From: "ronnie wehba" <rwehba@wtxs.net>
> Date: Sat, 8 May 2004 05:37:57 -0500
>
> "hey scott, you have a link to the rest of mikes 701 site?"
>
> Hi Ronnie:
>
> As far as I know, Mike Sinclair does not keep a website. That's why I
> posted his photos. I have more photos of his airplane I could post if he
> doesn't mind. He's doing a great job on his 701 and very close to being
> finished.
>
> Scott Laughlin
> http://www.cooknwithgas.com/
>
Message 7
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| Subject: | Re:Second greatest thirill |
--> Zenith-List message posted by: "Ron DeWees" <rdewees@mindspring.com>
Hi listers,
I can't brag about a first flight for a few months yet, but I did start my
Jab 3300 today for the first time in 4 years and it was a great moment for
me. I updated it to newer heads and manifold about a year ago but it hasn't
run except for the factory checkout. Today I got two friends over and
stationed one at the front and the other at the rear with a fire
extinguisher and turned over the 3300 till the oil pressure came up to 40
pounds or so. I turned on the ignition switches and the motor caught almost
immediately. It idled great and sounds wonderful. All temps were normal or
less. Smoothe as silk. I can't get over the joy of hearing it run. All
gauges and engine scanner worked great and the vacuum instruments came
alive. Man what a blast! I can hardly imagine what the first flight will
be like, but this must be a close second. Thanks so much for the help and
encouragement from this group.
Ron DeWees
Zen 601 HDS TD/ Jab 3300
Message 8
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| Subject: | front wheel bearing failure - CH601XL, stock Matco wheel |
--> Zenith-List message posted by: xl <xl@prosody.org>
Good thing that I had to taxi to 16 at AWO today.
There was a storm coming in from the south so 16 was in use.
It's about a mile taxi to the 'other' end of the field.
When I turned to line up for the runup I heard some chattering.
I was a new sound so I pulled off the taxiway to take a look.
My front wheel was cockeyed in the fork.
Both bearings had failed. The wheel was rolling on the axle
with no bearings. Had I had a shorter taxi run, the bearings
may have failed as I took off or landed. And I likely would
have crashed. The wheel can flop around. I would have lost
directional control and the fork may have collapsed or......
I have 20 hours on 633Z. I plan to contact Matco and Zenith
to discuss the failure. I'll post what I learn. I suppose that
at some point I could have overtightened the bearings. When I
installed the front wheel, I tightened the axle nuts until the
wheel didn't turn and then backed off until it turned freely.
Perhaps that wasn't the thing to do. I'll ask now........
The main bearings are tapered bearings and need to be tightened
enough to set them. The front wheel bearings are not tapered and
the center could be pushed in too far. I have to assume that I
did the damage.....
Joe
N633Z @ AWO -- AOG
Message 9
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| Subject: | Sun n Fun DVD Flite Line video |
--> Zenith-List message posted by: "Jon Croke" <jon@joncroke.com>
Greetings all from near Green Bay, Wi
Last month I traveled to Sun n Fun and spent nearly 2 days at the ultralight
flight line (really the sport pilot LSA flightline, 90% of the aircraft were
NOT ultralight, of course!). I spent quite a bit of time filming with a
rented video camera and have produced the best 1 hour video on a DVD from
those 2 days. As a Kolb and Zenith 701owner, I made some special attempts
to
get extra footage of those products.... tho there are many manufacturers
represented here.
If you have attended Sun n Fun or Osh in the past, you know what its like
watching the incredibly short takeoff and landing distances made by some of
these aircraft. Even tho I already fly these myself, it's something else to
watch from the outside and see it done.
I'll leave it at that and just say that if you have an interest, go to
www.CH701.com and on the home page will be a link to the particulars of
getting a hold of this DVD.
Good flying!
Jon
near Green Bay
Zenith CH701
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