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Engine Break In

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Ken Potter

Joined: 18 Aug 2007
Posts: 85
Location: Lanark, Ontario

Posted: Sat Jun 05, 2010 9:26 am Post subject: Engine Break In

Well I managed to get the engine running well enough, and even though it was not idling well I went ahead with the break in procedure.  (the equivalent of an hour long "root canal")   Anyways, it seemed to run much better after the break in period but will still not idle.  



Cheers



Ken

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_________________
Ken Potter
Model II, No. 483
Rotax 582, C-Box,
99% Complete
C-FJKP
Lanark, Ontario

Fox5flyer
Guest

Posted: Sat Jun 05, 2010 5:00 pm Post subject: Engine Break In

Ken, my Model 2 with 582 was factory equipped with idle jets that were way 

too rich that created a very rough idle.  From ACS I reduced them by a 

couple numbers (I don't remember what they were) that smoothed out the idle 

significantly.  No more problems.

Deke Morisse

Mikado Michigan

S5/Subaru/CAP 455+ TT

Previously Model 2 582 400 Hrs

"If you put the federal government in charge of the Sahara

Desert, in five years there'd be a shortage of sand."

-- Nobel prize-winning economist Milton Friedman (1912-2006)

 	  Quote: 	
		   



 Well I managed to get the engine running well enough, and even though it 

 was not idling well I went ahead with the break in procedure.  (the 

 equivalent of an hour long "root canal")   Anyways, it seemed to run much 

 better after the break in period but will still not idle.



 Cheers



 Ken



 --------

 Ken Potter

 Model II, No. 483

 Rotax 582, C-Box,

 99% Complete

 C-FJKP

 Lanark, Ontario





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 http://forums.matronics.com/viewtopic.php?p=300130#300130

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Ken Potter

Joined: 18 Aug 2007
Posts: 85
Location: Lanark, Ontario

Posted: Sat Jun 05, 2010 6:03 pm Post subject: Re: Engine Break In

Thanks Deke,



After a mind numbing hour of break in I'm now stepping back and educating myself about Bing carbs.  I've owned British sports cars with dual carbs for 30 years, but the Bing carbs are designed with a different philosphy.   I Have a copy of Mike Stratmans articles on the "Care and Feeding of the Rotax Motor" and plan to spend a rainy Sunday tomorrow reading it. 

Interestingly enough, after shutting down the engine after break in, I gave the engine a shake to check the mounts and the forward carb started pissing fuel out the main jet again.  I'm beginning to think it may be the primer that is funky. 

Cheers

Ken

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_________________
Ken Potter
Model II, No. 483
Rotax 582, C-Box,
99% Complete
C-FJKP
Lanark, Ontario

akflyer

Joined: 07 May 2007
Posts: 574
Location: Soldotna AK

Posted: Sun Jun 06, 2010 8:29 am Post subject: Re: Engine Break In

if it is pissing fuel out the main jet after you shook the engine, it sounds like a float or needle valve problem.  Make sure the floats are set per spec and there is no crap under the needle.  If yours are viton tipped needles, they could have dried out after sitting for too long and wont seal right.  Rebuild kits are cheap.

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_________________
DO NOT ARCHIVE
Leonard Perry aka SNAKE
Soldotna AK
Avid "C" / Mk IV
582 (147 hrs and counting on the rebuild)
IVO IFA
Full Lotus 1450
#1 snake oil salesman since 1-22-2009

I would rather die trying to live, than to live trying not to die....

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