Matronics Email Lists Forum Index Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

CH640: Findings at 2nd condition inspection

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Zenith-List
View previous topic :: View next topic  
Author Message
steveadams



Joined: 10 Jan 2006
Posts: 191

PostPosted: Thu Jul 19, 2007 10:06 am    Post subject: CH640: Findings at 2nd condition inspection Reply with quote

I just completed the second condition inspection on my CH640. I have 450 hours on the tach. Everything looked good except for a few items requiring attention. If anyone is interested, here is what I found.
1. New brake pads. I probably could have gone another 6 months, but figured I might as well change them now. This was the first set of pads. The original tires are still fine.

2. There are 2 panels on the aft side fuselage which cover the elevator trim mechanism. On the ground there is good clearance between these panels and an underlying bracket that attaches the trim tabs to the trim tab bellcrank. However, in flight they must be bowing in enough to rub on the bracket and have etched a groove on one side of the bracket. I am going to put in a new bracket and put a 1/8" piece of teflon on the bracket to prevent wear in the future.

3. The front spinner bulkhead had a crack extending from one of the screw holes inward and 1/3 of the way around the bulkhead. I had noticed the last few flights that at some rpm's there was a bit more vibration than I am used to. I am going to replace the bulkhead. Interestingly, I took a flight this morning without the spinner to see how much difference it made. To my surprise I couldn't detect a difference in speed with a quick run at 4500 feet, and CHT's were a bit lower. Even though it looks ugly, I may just fly without a spinner for a while.

4. The throttle cable was not pushing the throttle all the way to the stop at full power. It was a very small gap, but every little bit of power helps. I just adjusted the linkage.

That's it. Now I can get back to flying.


- The Matronics Zenith-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Zenith-List
Back to top
View user's profile Send private message  
cj.tremblay(at)videotron.
Guest





PostPosted: Fri Jul 20, 2007 9:46 am    Post subject: CH640: Findings at 2nd condition inspection Reply with quote

Hi Steve,

Thanks a lot for taking time to do a status on your 450 hours inspection. I
find it positive, I think it is very low number of problems, it's sound
good. Can I ask you to provide us a photo on point 2 about clearance of
panels. I want to verify if this need a plan modification to guaranty
clearance, and eventually I want to document this adjustment it in my web
site.

Thanks again

Christian Tremblay
A guy who build a CH640 aircraft from plan
http://www.zodiac640.com/

-----Message d'origine-----
De�: owner-zenith-list-server(at)matronics.com
[mailto:owner-zenith-list-server(at)matronics.com] De la part de steveadams
Envoy�: Thursday, July 19, 2007 2:07 PM
��: zenith-list(at)matronics.com
Objet�: CH640: Findings at 2nd condition inspection



I just completed the second condition inspection on my CH640. I have 450
hours on the tach. Everything looked good except for a few items requiring
attention. If anyone is interested, here is what I found.
1. New brake pads. I probably could have gone another 6 months, but
figured I might as well change them now. This was the first set of pads. The
original tires are still fine.

2. There are 2 panels on the aft side fuselage which cover the elevator
trim mechanism. On the ground there is good clearance between these panels
and an underlying bracket that attaches the trim tabs to the trim tab
bellcrank. However, in flight they must be bowing in enough to rub on the
bracket and have etched a groove on one side of the bracket. I am going to
put in a new bracket and put a 1/8" piece of teflon on the bracket to
prevent wear in the future.

3. The front spinner bulkhead had a crack extending from one of the screw
holes inward and 1/3 of the way around the bulkhead. I had noticed the last
few flights that at some rpm's there was a bit more vibration than I am used
to. I am going to replace the bulkhead. Interestingly, I took a flight this
morning without the spinner to see how much difference it made. To my
surprise I couldn't detect a difference in speed with a quick run at 4500
feet, and CHT's were a bit lower. Even though it looks ugly, I may just fly
without a spinner for a while.

4. The throttle cable was not pushing the throttle all the way to the stop
at full power. It was a very small gap, but every little bit of power helps.
I just adjusted the linkage.

That's it. Now I can get back to flying.


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=124799#124799


- The Matronics Zenith-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Zenith-List
Back to top
 
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Zenith-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group