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Old 09-15-2010 | 08:15 PM
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Default os 744 muffler

sorry i cant find the wanted adds but im in need of an os 744 muffler for a old airplane that i bought. can anybody help me please. thanks.
Old 09-15-2010 | 09:40 PM
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Default RE: os 744 muffler

What OS engine does the muffler fit? Thanks Dave
Old 09-16-2010 | 12:06 AM
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Default RE: os 744 muffler

there is a 744 bolt throught for SF engines on forward and a bolt on for the SR and FSR series
Old 09-16-2010 | 01:49 PM
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Default RE: os 744 muffler

i think its the fsr. not sure. i no its a .61. its an old plane.
Old 09-16-2010 | 02:36 PM
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Default RE: os 744 muffler

The O.S. #744 muffler was for the .61FSR. The #744B was the one on the .61SF/RF engines. The "B" part wasn't cast into the muffler, though. However, if the holed in the muffler are threaded, you have the #744B muffler. Other than that, they are identical.
Old 09-16-2010 | 06:00 PM
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Default RE: os 744 muffler

thanks. it is threaded. i will look for one of those.
Old 09-16-2010 | 06:02 PM
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Default RE: os 744 muffler


ORIGINAL: lbeach001

thanks. it is threaded. i will look for one of those.
Are you looking to buy one? Is 744 stamped on it? I have a box full of mufflers and some are older ones. I can take a look and see what I have.
Old 09-16-2010 | 08:01 PM
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Default RE: os 744 muffler

yes i am. yes it is. and the holes are threaded. thanks.[img][/img]
Old 09-16-2010 | 08:52 PM
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Default RE: os 744 muffler

do an ebay search. I had a buddy have me look there for him and there is one or more. I ended up needing a different one though. so it should still be there. be sure to include ebay stores. SF 61 is a great old motor!
Old 09-17-2010 | 07:11 PM
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Default RE: os 744 muffler

I found one. It has threads in it. It does not have the little back pressure nipple, but I imagine I have one that will work.
Old 09-17-2010 | 08:44 PM
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Default RE: os 744 muffler

what would you want for it.
Old 09-18-2010 | 04:55 AM
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Default RE: os 744 muffler

I sent you a PM so we could figure out details.

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