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 

RotaxEngines-List Digest: Squeak on Rotax 912S

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> RotaxEngines-List
View previous topic :: View next topic  
Author Message
goodings(at)yorku.ca
Guest





PostPosted: Mon Jul 17, 2006 1:54 pm    Post subject: RotaxEngines-List Digest: Squeak on Rotax 912S Reply with quote

After flying our CH601HD with Rotax 912S (100 hours) last weekend, we had
occasion to pull the prop through by hand. When pulled quickly, a squeak
was heard from the front of the engine; the engine was hot. When we ran
the engine again after lunch, the squeak was heard again for the last
couple of blade rotations before the prop stopped. We had heard from an
expert AME on Rotax engines that a few certified 912S engines had been
assembled with an incorrect part in the slipper clutch in the gear box.
(The mating surfaces of the clutch hub and the dog gear should both have
an angle of 7 degrees, whereas one of the parts in the faulty assemblies
had an angle of 0 degrees, meeting the other part at the wrong angle.)
There was the possibility that some uncertified engines like ours had
suffered a similar fate. Thus, our gear box was opened up by the expert
AME; however, the correct parts had been installed. It was reassembled by
him (with great care; it had to sit overnight for the correct Loctite
sealant to set). When the engine was run approximately 40 hours later,
the squeak had disappeared. We would be interested to learn if any other
912S users have encountered this characteristic squeak. If so, were they
able to determine a clear-cut cause?

John Goodings, C-FGPJ, CH601HD with R912S, Toronto/Waterloo.


- The Matronics RotaxEngines-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?RotaxEngines-List
Back to top
NYTerminat(at)aol.com
Guest





PostPosted: Tue Jul 18, 2006 5:56 pm    Post subject: RotaxEngines-List Digest: Squeak on Rotax 912S Reply with quote

I have the squeak upon shutdown, sounds like short a fan belt squeal.
 
Bob Spudis
N701ZX / Zenith CH-701/912S
 
Do Not Archive
 
 
 
 
In a message dated 7/17/2006 5:55:12 P.M. Eastern Daylight Time, goodings(at)yorku.ca writes:
Quote:
We would be interested to learn if any other
912S users have encountered this characteristic squeak.  If so, were they
able to determine a clear-cut cause?



 


- The Matronics RotaxEngines-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?RotaxEngines-List
Back to top
ami(at)MCFADYEAN.FREESERV
Guest





PostPosted: Wed Jul 19, 2006 1:25 pm    Post subject: RotaxEngines-List Digest: Squeak on Rotax 912S Reply with quote

I've had the squeak for 300 hours; either when pulling the prop trough by
hand or on shutdown. I'm pretty sure it is the dog clutch (i.e. NOT the
slipper clutch) that produces this.

I complained to my local Rotax agent when it was new. He said I was just a
trouble maker! This is the level of service that can be expected from
Rotax's illegal and anti-competitive policy of 'one Country, one Agent'.

Duncan McF.
---


- The Matronics RotaxEngines-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?RotaxEngines-List
Back to top
paul.mitchell2(at)homecal
Guest





PostPosted: Thu Jul 20, 2006 12:37 am    Post subject: RotaxEngines-List Digest: Squeak on Rotax 912S Reply with quote

My 20 hour old engine has the same squeak under all those conditions. I was
also told that was "How they are" I also had other concerns. It took the
intervention of the MD from the aircraft manufacturer in Italy direct to
Rotax in Austria to get the Agent in UK to even come and look. After the
intervention, a really positive visit took place. I now have a much sweeter
engine with a squeak.
Paul Mitchell
---


- The Matronics RotaxEngines-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?RotaxEngines-List
Back to top
NYTerminat(at)aol.com
Guest





PostPosted: Thu Jul 20, 2006 8:17 am    Post subject: RotaxEngines-List Digest: Squeak on Rotax 912S Reply with quote

Paul,
 
Thanks for your reply, I am glad that I am not alone with the squeak. I have forwarded these e-mails to Lockwood and will post their reply.
 
Bob Spudis
N701ZX  CH701/912ULS
awaiting intervention
do not archive 
 
 
 
 
 
 
In a message dated 7/20/2006 4:39:45 A.M. Eastern Daylight Time, paul.mitchell2(at)homecall.co.uk writes:
Quote:
--> RotaxEngines-List message posted by: "MR PAUL MITCHELL" <paul.mitchell2(at)homecall.co.uk>

My 20 hour old engine has the same squeak under all those conditions.  I was
also told that was "How they are" I also had other concerns.  It took the
intervention of the MD from the aircraft manufacturer in Italy direct to
Rotax in Austria to get the Agent in UK to even come and look. After the
intervention, a really positive visit took place. I now have a much sweeter
engine with a squeak.
Paul Mitchell


 


- The Matronics RotaxEngines-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?RotaxEngines-List
Back to top
ami(at)MCFADYEAN.FREESERV
Guest





PostPosted: Thu Jul 20, 2006 12:17 pm    Post subject: RotaxEngines-List Digest: Squeak on Rotax 912S Reply with quote

Paul,
May we benefit from the knowledge of what was otherwise done to make your
engine much sweeter?

Duncan McF.
---


- The Matronics RotaxEngines-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?RotaxEngines-List
Back to top
paul.mitchell2(at)homecal
Guest





PostPosted: Mon Jul 31, 2006 2:27 am    Post subject: RotaxEngines-List Digest: Squeak on Rotax 912S Reply with quote

Duncan,
Sorry for the delay in replying
Carb balance, (factory set slow running stops out) also slow running
mixture. I have just spent a week at Glenforsa on Mull and did the flight
home to Hinton in the Hedges with a tea stop at Carlisle in 3hrs 55mins
airtime on 55 litters at 110knots against a 10knot headwind. The engine is
in a Tecnam Sierra.
(Squeak still there.)
Paul
---


- The Matronics RotaxEngines-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?RotaxEngines-List
Back to top
ami(at)MCFADYEAN.FREESERV
Guest





PostPosted: Tue Aug 01, 2006 9:47 am    Post subject: RotaxEngines-List Digest: Squeak on Rotax 912S Reply with quote

Paul,
Thanks.
What method did you use to get the idle mixture correct? (i.e. ear, lambda
probe, other?).

Rgds.,
Duncan.
---


- The Matronics RotaxEngines-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?RotaxEngines-List
Back to top
paul.mitchell2(at)homecal
Guest





PostPosted: Wed Aug 02, 2006 2:27 am    Post subject: RotaxEngines-List Digest: Squeak on Rotax 912S Reply with quote

Duncan,
Conrad Beale of Conairsports did it by ear. Not scientific but it works
Paul
---


- The Matronics RotaxEngines-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?RotaxEngines-List
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> RotaxEngines-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