Generator quit ...just stopped running after 25 seconds......and I suspect fuel pump HOWEVER...NO FUEL runs out of hose from gasoline tank ..after disconnecting fuel pump ..even when I lower hose to ground. I thought fuel would flow thru hose from gas tank. It flows on my 1985 LD, when I lower hose to lower level. Gas tank is full. I have bought new pump, but have not installed yet. WHY DONT FUEL FLOW BY GRAVITY? I am confused. HELP PLEASE...THANKS.
If you can't suck fuel through the line from the generator to the tank, suspect a leak in the fuel hose letting air into the line. I've seen deteriorated cracked hoses, as well as hoses damaged. by rodents.
You can try pushing / blowing air back through the line to see if it is otherwise clear. If you listen carefully, you should hear air bubbles in the tank.
I have used a plunger like this one to push air in/out and troubleshoot.
Amazon.com: FloTool 10111/6 Mixmizer Injector : Automotive (https://www.amazon.com/Hopkins-10111-FloTool-Mixmizer-Injector/dp/B000G72U0K/ref=asc_df_B000G72U0K/?tag=hyprod-20&linkCode=df0&hvadid=312126147596&hvpos=&hvnetw=g&hvrand=15719030374020945964&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9009738&hvtargid=pla-489980906296&psc=1)
Rich
Two possible causes .
Leaky, rotted fuel line, up at the tank and/or a siphon needs to be established. Do this at your own risk.
Mostly likely the rubber fuel line, up on top of the tank is rotted and leaks air. It’d quite common on rigs of your vintage.
Larry
Two possible causes .
Leaky, rotted fuel line, up at the tank and/or a siphon needs to be established. Do this at your own risk.
Mostly likely the rubber fuel line, up on top of the tank is rotted and leaks air. It’d quite common on rigs of your vintage.
Larry
Thanks...rubber hose NOT rotted near Genny. I will have a look near tank IF possible. Thanks..I love my Vintage 2000 LD 23ft rear bath with V10!
If you can't suck fuel through the line from the generator to the tank, suspect a leak in the fuel hose letting air into the line. I've seen deteriorated cracked hoses, as well as hoses damaged. by rodents.
You can try pushing / blowing air back through the line to see if it is otherwise clear. If you listen carefully, you should hear air bubbles in the tank.
I have used a plunger like this one to push air in/out and troubleshoot.
Amazon.com: FloTool 10111/6 Mixmizer Injector : Automotive (https://www.amazon.com/Hopkins-10111-FloTool-Mixmizer-Injector/dp/B000G72U0K/ref=asc_df_B000G72U0K/?tag=hyprod-20&linkCode=df0&hvadid=312126147596&hvpos=&hvnetw=g&hvrand=15719030374020945964&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9009738&hvtargid=pla-489980906296&psc=1)
Rich
Thanks..I bought the flo tube from AMZ.
CHEERS.
0is there a fuel filter from the gas tank to the fuel pump?
I don't know about the 80's vintage generators, but the 2000's versions have a fuel filter immediately upstream of the fuel pump. Trace the fuel line coming into the generator and you should see it if there is one.
Rich
Also check the oil level.
If it is low, it will do what you have experienced.
I don't know about the 80's vintage generators, but the 2000's versions have a fuel filter immediately upstream of the fuel pump. Trace the fuel line coming into the generator and you should see it if there is one.
Rich
I was looking 4 a filter from pump input back to gas tank. I see the one between pump output and genny. Thanks.
0is there a fuel filter from the gas tank to the fuel pump?
No. It is a bare tube that dips into the tank to the 1/4 level, at least on my 2006 Ford.
No. It is a bare tube that dips into the tank to the 1/4 level, at least on my 2006 Ford.
OK....the latest......I blew bubbles first.....then gas came out via gravity....SO....I put OLD fuel pump back on......NO START....SO...I put on new fuel pump and filter.....still no start...it cranks great but no sta r t...have OLD air filter off now....still no start...OIL LEVEL 3/4...TANK 3/4......HAVE SPARK AS I GOT a nice shock....NEXT. ...am thinking of spraying something into CARBY thru air inlet...I am NEAR end of ideas and am 80 yrs old....all ideas will be appreciated...thanks....Hank
.
OK....the latest......I blew bubbles first.....then gas came out via gravity....SO....I put OLD fuel pump back on......NO START....SO...I put on new fuel pump and filter.....still no start...it cranks great but no sta r t...have OLD air filter off now....still no start...OIL LEVEL 3/4...TANK 3/4......HAVE SPARK AS I GOT a nice shock....NEXT. ...am thinking of spraying something into CARBY thru air inlet...I am NEAR end of ideas and am 80 yrs old....all ideas will be appreciated...thanks....Hank
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What else can it be?? Ran great...did not use in a month...ran 20 seconds....due to LOST PRIME maybe due to ALTITUDE CHICAGO TO VEGAS...MY CURRENT LOC A TION....WAITING FOR SENIORS POKER TOURNEYS.
No. It is a bare tube that dips into the tank to the 1/4 level, at least on my 2006 Ford. ?
OK....the latest......I blew bubbles first.....then gas came out via gravity....SO....I put OLD fuel pump back on......NO START....SO...I put on new fuel pump and filter.....still no start...it cranks great but no sta r t...have OLD air filter off now....still no start...OIL LEVEL 3/4...TANK 3/4......HAVE SPARK AS I GOT a nice shock....NEXT. ...am thinking of spraying something into CARBY thru air inlet...I am NEAR end of ideas and am 80 yrs old....all ideas will be appreciated...thanks....Hank
.
I don't know about the 80's vintage generators, but the 2000's versions have a fuel filter immediately upstream of the fuel pump. Trace the fuel line coming into the generator and you should see it if there is one.
Rich
I was looking 4 a filter from pump input back to gas tank. I see the one between pump output and genny. Thanks.
I was looking 4 a filter from pump input back to gas tank. I see the one between pump output and genny. Thanks.
I was looking 4 a filter from pump input back to gas tank. I see the one between pump output and genny. Thanks.
RICH.....GAS IS COMMING FROM THE TANK.
2 things you can do if you're trying to figure out what's going on with your fuel system.
(1) Disconnect the fuel line from the carburetor and direct it into a safe container (glass jar or gas can or something). Prime the generator. This _should_ cause the fuel pump to pump fuel from the tank and into the new container. Lack of fuel means you are not getting fuel from the tank to the genset.
(2) Disconnect the fuel line at the filter, and use a short piece of fuel hose to draw fuel directly from a fuel container. If everything runs, the pump and the generator work, and the fuel delivery problem is upstream (between the filter and the coach fuel tank).
This video explains (1). You might not have the same generator, but the principle applies.
https://youtu.be/U72Zmk0BF-o?t=224
Rich
Put your hand in front of the carburetor without the air filter to manually choke it. See if that will get it to run. Squirting propane or ether into the intake can tell you something. If it fires then fuel is not coming out of the carb. A replacement carb can be found on Ebay for $30-40. With that you have replaced the entire fuel system.
Let us know if you can get it running by manually choking, propane or starter fluid.
Put your hand in front of the carburetor without the air filter to manually choke it. See if that will get it to run. Squirting propane or ether into the intake can tell you something. If it fires then fuel is not coming out of the carb. A replacement carb can be found on Ebay for $30-40. With that you have replaced the entire fuel system.
Let us know if you can get it running by manually choking, propane or starter fluid.
I am going to check 12 volts to fuel pump TOMMORROW as I have fuel from tank to pump but no fuel out of pump.
Problem solved; AIR LEAK ON HOSE BEFORE FUEL PUMP INPUT. Now just have go to ONAN and buy a 1492333 fuel filter as the CRAP one I b ought on AMAZON is CRAP. $13 WASTED.
OH WELL , I sav e d a ton of $$$$ doing it myself with FORUM help; RICH and others...
THANKS TO ALL.
I can now get ready for the WSOP Seniors Poker Tourney!