| [GMCnet] White knuckle ride [message #318718] |
Thu, 08 June 2017 11:04  |
glwgmc
Messages: 1014
Registered: June 2004
Karma: 10
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Senior Member |
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Yes, Dan, I think they are GMC38 for the one including a 3/8" line from the tank to the gen and GMC12 for the one with 1/2" line.
Jerry Work
The Dovetail Joint
Fine furniture designed & hand crafted
in the 1907 former Masonic Temple building
in historic Kerby, OR
http://jerrywork.com
........
Jerry, Did you ever get a single part number for your Onan LPG conversion???
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Jerry & Sharon Work
78 Royale
Kerby, OR
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| Re: [GMCnet] White knuckle ride [message #318728 is a reply to message #318718] |
Thu, 08 June 2017 13:05  |
captjack
Messages: 271
Registered: February 2010
Location: Sebastopol, California
Karma: 1
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Senior Member |
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Gerry did us a great favor in putting together the propane ONAN conversion. I ordered and installed the GMC38 kit from US Carburetion which comes with a 3/8 inch hose. The 3/8 inch hose I found to be adequate. As a test I ran both air AC's on the ONAN and noticed no drop in voltage.
This is the second generator I've converted to propane. In both instances, starting is easier and faster. The engines run much cleaner and oil hardly darkens with use. But, make sure your ONAN works well on gasoline before you convert it. Propane won't solve every problem!
Another major benefit for me is NO VAPOR LOCK. Previously the ONAN was my early warning for the GMC engine getting vapor lock. The ONAN would shut down a short time before the engine quit giving me enough time to pull over. I've pretty much solved the engine problem with in tank fuel pumps, and the propane conversion solves the ONAN vapor lock problem.
Jack Christensen - K6ROW,
'76 Glenbrook/Clasco - "The Silver Bullet",
Sebastopol, CA
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| Re: [GMCnet] White knuckle ride [message #318751 is a reply to message #318728] |
Thu, 08 June 2017 23:29 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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I cured my Onan vapor lock problem at temps over 100 F. by replacing the line from the bottom of the enclosure to the pump with one covered with fire sleeve. I also covered the fuel pump with insulation and aluminum reflective tape.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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