Rick Jay
Greater Springfield area, MA
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Joined: 02/02/2003
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dalefuji wrote:I took fuel line from fuel pump and stuck it in gas can and no luck...
This could just be semantics, but to be clear, you need to disconnect the fuel line going TO the fuel pump, not from. That is, the fuel line coming from the gas tank. That's probably what you did, but just want to make it clear. To do this, you'll probably need an additional length of fuel line to drop down from the pump to the gas can.
I still think your symptoms still sound like fuel starvation.
Can you repeat your test where you primed the engine and then tried to start it? If that works, it's most likely a fuel problem.
When you go to start it, does it "pop" or show any signs of trying to start? Have you tried spraying any "quick start" spray into the carb to see if that would get it to "pop"?
~Rick
2005 Georgie Boy Cruise Master 3625 DS on a Workhorse W-22
Rick, Gail, 1 girl (27-Angel since 2008), 1 girl (22), 2 boys (23 & 20).
2001 Honda Odyssey, Demco Aluminator tow bar & tow plate, SMI Silent Partner brake controller.
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dalefuji
Milton, Pa.
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Joined: 07/14/2010
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Yesterday I spoke to friend at RV Dealership and he told me to hold stop button in for 15 seconds to prime carb. I did that and generator started and ran for about 3-4 minutes. After that it would not start. Today we disconnected gas line from main tank to fuel pump and hooked hose up to fuel pump and dropped hose in gas can. Generator would not start. We come to conclusion that new carb. is not working and are going to clean old one and put it back on and see if Generator starts.
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dalefuji
Milton, Pa.
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The spark plug gap is set at .025 and plugs come set at .035 could an issue.
I always kept oil level at full mark, some say that oil level should be at
low level mark because dip stick is wrong?????
Is there a sensor on oil level that could be causing Onan not to start??
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enblethen
Moses Lake, WA
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Joined: 01/05/2005
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Some Onans have one of these.1 PSI switch
Bud
USAF Retired
Pace Arrow
2003 Chev Ice Road Tracker
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dougrainer
Carrolton, Texas
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dalefuji wrote:The spark plug gap is set at .025 and plugs come set at .035 could an issue.
I always kept oil level at full mark, some say that oil level should be at
low level mark because dip stick is wrong?????
Is there a sensor on oil level that could be causing Onan not to start??
The Onan WILL start with the switch engaged. IF you have a LOPKO(low oil pressure switch) that is defective the Onan will then die once the start button is released. There is NOT any such problem with needing to have Oil Level lower than full on the mark. Where did you get your Carb? ONAN carb or aftermarket? Fuel Pump. ONAN or aftermarket or local auto part store. Doug
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Rick Jay
Greater Springfield area, MA
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Joined: 02/02/2003
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dalefuji wrote:Yesterday I spoke to friend at RV Dealership and he told me to hold stop button in for 15 seconds to prime carb. I did that and generator started and ran for about 3-4 minutes. After that it would not start. Today we disconnected gas line from main tank to fuel pump and hooked hose up to fuel pump and dropped hose in gas can. Generator would not start.
When you primed the generator, it started. I'm assuming it was running pretty well and not sputtering or running rough or you would've mentioned that. That to me would suggest that the carb is probably OK.
After you primed it, it ran, and then stalled once the fuel was used up in the float bowl. That's normal if there's not sufficient fuel being fed to the carb. Did you repeat the priming procedure every time you tried to restart it after that? If you just dropped the fuel line into a can of gas, it'll take A LOT of cranking before it can pull up enough fuel into the float bowl to fire.
Well, good luck in your troubleshooting. I'm still leaning toward it being a fuel line or possibly a fuel pump problem. I'll be very interested to hear what your solution turns out to be.
~Rick
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dalefuji
Milton, Pa.
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Problem solved, Generator 5500 is running smoothly and runs my air conditioners.
I put the original fuel pump and carburetor after cleaning back on. Today I got a Bosch 5-blade relay that is located in air cleaner box. I started Generator and it runs excellent. Problem solved.
I want to thank everyone for all your input and suggestions. It was greatly appreciated. Thank you all.
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Rick Jay
Greater Springfield area, MA
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dalefuji,
Glad to hear you have it running! Kind of makes me wonder what the original problem, was though!?!?! ![[emoticon]](http://www.coastresorts.com/sharedcontent/cfb/images/smile.gif "smile")
Thanks for posting your success...however you achieved it.
~Rick
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Snowwing
WA
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Joined: 11/30/2004
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I would really like to know what this relay's function is.
Thank's
RC
2005 Journey 36G
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enblethen
Moses Lake, WA
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Believe that is an isolation relay between remote start and gen start.
Thanks for the update!
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