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Old 08-21-2012, 12:56 PM   #1
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1.25 to 1.5 Exhaust adapter

I recently purchased a "X-duct" exhaust hose from Flight Systems (http://www.flightsystems.com/pdf/XDUCTflyr.pdf). I have an Onan 4000 which has a 1.25 OD exhaust pipe, the X-duct is designed for 1.5 OD. Anyone know where I can get an adapter.

btw: I went this way because the generator exhausts under a slide out and someone decided to cut a hole in the slide gasket to run a cable or something. So 24" above the exhaust pipe is a quater size hole where you can see into the coach. I have patched the gasket, but would still like to get it away from the coach a bit more. Gen-Turi would be awkward since the slide is in the way.

Thanks in advance for any help/ideas.
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Old 08-21-2012, 01:16 PM   #2
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Any muffler shop will have what you need.
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Old 08-21-2012, 01:37 PM   #3
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I called around the muffler shops in Louisville and they do not carry pipe small enough and didn't have much for recommendations.
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Old 08-21-2012, 01:48 PM   #4
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Use a 1.5 pipe with a 1/8th wall thickness as a bushing, this makes up the 1/4 difference.
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Old 08-21-2012, 04:13 PM   #5
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Call Bluegrass Muffler on Shelbyville Road. They can make anything.

Quote:
Originally Posted by japple View Post
I called around the muffler shops in Louisville and they do not carry pipe small enough and didn't have much for recommendations.
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Old 08-21-2012, 08:28 PM   #6
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Visit a hardware store that has a well stocked electrical department, emt conduit is close and compression fittings are close to gas tight .

They will have radius formed and straight.

Buy fittings and test fit before long parts.

Measure diameter and maybe cut the last inch and use for pattern
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Old 08-22-2012, 06:35 AM   #7
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I called Bluegrass first, everyone seems to consider them the best in town.

Thanks
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Old 08-24-2012, 10:42 PM   #8
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japple....buy 1.025 pipe and have a muffler shop with a tubing bender, expand the end of the pipe to 1.5" They do it all the time on muffler repairs/installs.
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Old 11-17-2012, 03:52 PM   #9
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"topdownman" was right, Bluegrass muffler can make anything. Once I shut the rig down for the season, I took all the parts in and he made me a custom adapter welded to the existing pipe. Looks and works great.
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Old 11-17-2012, 05:57 PM   #10
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have you checked pep boys ?? they carry or carried adapters one size to another.
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Old 11-19-2012, 06:39 AM   #11
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I did check the auto parts stores first and didn't find a match.
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