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Carbs falling off 912's

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rexjan(at)bigpond.com
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Posted: Wed Aug 09, 2006 5:39 pm Post subject: Carbs falling off 912's

Hi ! Guys,

                   0 just a thought re all this talk of carbs falling of Rotax 912's. I may not know0 what I'm talking about here as I fly behind a 582 but just in case it helps here0 goes !  The carb socket problem on the 582 is cracking allowing air leakage0 not the carbs falling off. About 12 months ago I purchased two aftermarket carb0 sockets from some place called JBM in USA. I am in Australia. Anyway the guy was0 very nice and he said he flew an ultralight and ran this business making various0 rubber parts for autos. He said the aftermarket carb sockets he was making to0 solve his and everyone elses problem were actually made out of a different0 material that he did name at the time and they would last for ten years,  possibly for ever. 

   They look slightly different in material0 composition and shape. They are smoother surface and tapered rather than  stepped. They hold the carbs much better. The original Rotax sockets let the0 carbs sag a bit. IF this guy makes carb sockets for 912's I would think he might0 well have solved your problem. Sorry I don't know how to contact him now [ I0 wish I did as I might need him again ] but if someone knows who I'm talking0 about and he does make carby sockets for 912's I would think it worth a0 try.

   His price was also very good. In Australia0 it still only cost me the same to get these better sockets as to buy the  original Rotax very inferior product in this instance. I have been using these0 sockets for about 12 months now and they are great. The originals last about 20 years.

   I see someone mention roughening the carb0 surface where it goes into the socket and I can confirm this has solved the same0 issue in a different situation for me in the past.

                                                                  0 Goodluck,

                                                                                     0 Rex Shaw.

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Richard Rabbers

Joined: 09 Jan 2006
Posts: 114
Location: Benton Harbor, MI - USA

Posted: Wed Aug 09, 2006 7:37 pm Post subject: Re: Carbs falling off 912's

JBM Industries, Kent, OHIO 

330-678-9537

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