Re: FUEL PUMP PROBLEMS?

Posted by Jim L. in OR On 2012/8/2 16:30:14
Quote:

HH56 wrote:
If the arm itself didn't get damaged or bent, I don't think there is much in the pump that can either.

IIRC, a single stem from the diaphragm thru a relatively small opening which fits in a slot but rests on top of the arm. Has a captured plate that the arm lifts up. If all that is intact -- and surely the mechanic would have seem any problems if not -- then doubt there is an issue.

What about the level in the fuel filter. Is it staying full?

Any puncture or rip of the diaphragm should be finding your oil full of gas because that path would be easier than going thru the filter or being stopped by the float. If you check and all is well with oil level, then doubt any problems there.

Also wondering about the used plunger. Maybe it wasn't in that great a shape after all and couldn't stand being put into service again.


The fuel level in the filter bowl is definitely full and did the sniff test on the dipstick and that seems OK.

The used plunger already shows signs that it doesn't want to play in the form of being either "ON" or "OFF". A slow easy acceleration is no longer possible. I just slowly press down on the loud pedal and nothing happens until all at once you're moving rather quickly. Makes backing into the garage really interesting!

I plan on doing the pressure/suction test as soon as I get up from this and I'll let you all know what I find out.

I will say that will I was running the engine last night I observed that the fuel pump is leaking around the mating surfaces.

I also want to thank Jack, O_D and you Howard for lending me the benefit of your knowledge and experience. I do appreciate it.

More after the test!

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