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Re: Daniel's Onan [message #369520 is a reply to message #369519] Thu, 21 April 2022 12:59 Go to previous messageGo to previous message
rjw   United States
Messages: 697
Registered: September 2005
Karma:
Senior Member
Matt Colie wrote on Thu, 21 April 2022 13:24
Carl S. wrote on Thu, 21 April 2022 12:18
<snip>
After running for probably less than a minute, it would start to stumble and hunt and than die like it was running out of gas. The fuel tank is full, and the fuel pump has been replaced (at Steve Winestock's place). The strange thing about this is that the 5 amp fuse on the board would blow at about the same time. WE tried several fuses, even a 10 amp, with the same result.

Any ideas???
I have an idea.....

When most prime circuits are wired in, they by-pass the fuse. If the fuel pump is gummed up, it can sit on the contacts and draw more power sitting there getting hot. This can also be a result of less than good power to the pump. So, check the connections that feed the fuel pump and if that doesn't get it, maybe you need to take the pump off and apart (not a big job) and clean it. The gasket is available at NAPA (at least).

Be sure to let us know.

Matt
Carl said "The fuel tank is full, and the fuel pump has been replaced (at Steve Winestock's place)" so should we assume the fuel pump is OK?


Richard
76 Palm Beach
SE Michigan
www.PalmBeachGMC.com

Roller Cam 455, TBI+EBL, 3.42 FD, 4 Bag, Macerator, Lenzi (brakes, vacuum system, front end stuff), Manny Tranny, vacuum step, Tankless + OEM water heaters.
 
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