jimsheila1996
Cadet
- Joined
- Feb 26, 2010
- Messages
- 13
I know you guys see a lot of these and I think I have narrowed it down to a bad fuel pump. But I'd like to be a little more sure before I lay down $200+ for a new one.
Last year,just once, the boat started fine but would not run under load when pulling a tube. I changed the fuel filter and it worked fine up until last week (several trouble free outings in between)
Last weekend it was hard to start cold,at the time I thought I had flooded it. Cranked and cranked with the throttle in various positions and it finally caught and ran. We put about 60 miles on the boat that day cruising @ 25 +/- mph. Once during the day I had to crank it for a few seconds before it ran (it usually starts immediately once warm).
Yesterday I went to start it an it fired died, fired again caught and ran for a few seconds and died. No amount of cranking would get a pop out of it. Assuming I flooded it, I pulled a spark plug and found it dry, same with 2 more, put new plugs in anyway as I had them.
Tried again no pops. I do have good spark by the way.
I have since then:
Changed the fuel filter (filled new one with gas first).
checked that fuel is available to the filter pump from the tank ( pulled line from tank to filter at filter and fuel flows freely).
Also tried using a 5 gal can temporarily as the fuel source with the same result.
Checked the filter at the carb (perfectly clean).
Confirmed the engine will run fine as long as gas is manually fed through the carb (squirt bottle).
Cranked the engine with line disconnected from carb and got No fuel. Checked it 3 more time and did get fuel once but then none again.
During all this the fuel pump runs (you can just hear it while cranking) and stops when key is released.
All this I feel, points to a bad pump. But I don't know if a pump can still run and be bad/intermittently bad. I did remove the pump from the boat and direct wired it and can feel vacuum when I put my finger over the intake.
Bottom line is , money is tight and I can't afford to throw $ and parts at a problem like this. I'd like to get it right the first time.
Any insight would be a big help.
Thanks
Jim
Last year,just once, the boat started fine but would not run under load when pulling a tube. I changed the fuel filter and it worked fine up until last week (several trouble free outings in between)
Last weekend it was hard to start cold,at the time I thought I had flooded it. Cranked and cranked with the throttle in various positions and it finally caught and ran. We put about 60 miles on the boat that day cruising @ 25 +/- mph. Once during the day I had to crank it for a few seconds before it ran (it usually starts immediately once warm).
Yesterday I went to start it an it fired died, fired again caught and ran for a few seconds and died. No amount of cranking would get a pop out of it. Assuming I flooded it, I pulled a spark plug and found it dry, same with 2 more, put new plugs in anyway as I had them.
Tried again no pops. I do have good spark by the way.
I have since then:
Changed the fuel filter (filled new one with gas first).
checked that fuel is available to the filter pump from the tank ( pulled line from tank to filter at filter and fuel flows freely).
Also tried using a 5 gal can temporarily as the fuel source with the same result.
Checked the filter at the carb (perfectly clean).
Confirmed the engine will run fine as long as gas is manually fed through the carb (squirt bottle).
Cranked the engine with line disconnected from carb and got No fuel. Checked it 3 more time and did get fuel once but then none again.
During all this the fuel pump runs (you can just hear it while cranking) and stops when key is released.
All this I feel, points to a bad pump. But I don't know if a pump can still run and be bad/intermittently bad. I did remove the pump from the boat and direct wired it and can feel vacuum when I put my finger over the intake.
Bottom line is , money is tight and I can't afford to throw $ and parts at a problem like this. I'd like to get it right the first time.
Any insight would be a big help.
Thanks
Jim
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