52 Willys and Fuel Pump

[jwillys]

The fuel pump went out on my Willys. I bought a new and can not get fuel to the carb. I was able siphon gas to the filter, however that was it. I know that I have all 4 lines hooked up right. Their is really only one way for the rocker arm to go in, unless their is some trick that I am missing. I think that it is bad fuel pump. Anyone have any ideas? Thank you very much!

[ademster]

Sounds like a bad pump,

remove the house, have some one crank the engine, and put your finger or the inlet port and see if it creates a vacuum

[OlneyJeeps]

what motor?
52 what? CJ3A?

[jwillys]

It is the L-Head 134.

Thanks agian for the advice.

[OlneyJeeps]

cj3a or cj5? are you sure it is the pump? check connections on fuel line (break in line will cause loss of suction)

some options:
where fule line connects to pump, use short hose connector to clear fuel filter ($1.99 at autozone), couple feet fuel hose outother side of filter; CAREFULLY suck (ideally use bubble pump like found on boat tanks) on hose untill you see fuel enter filter; this will verify lines all connect; connect to pump and try

when starting with dry system, I (carefully) fill carb bowl through vent (or just use starter fluid) then start

I run clear filter between tank and pump and another between pump and carb (so can see fuel coming through)

are you using pump with bowl (glass)?

[TRobertsRN]

Your original pump may be good as well as the new one.

Like he said could be a fuel line leak. Like his idea of how to trouble shoot it.

Know a guy who fond one just as the fuel line was coming out of the gas tank.

Cheaper than a pump but can be a pain to fix if you don't have a plate above the gas tank you can remove.

I don't rember which years had the plate.

Other wise to find and fix the leak you may have to drop the gas tank.

Good luck,

[jwillys]

It is CJ3A. I siphoned gas through the fuel the through the pump and then into the filter (gas is disgusting, a lot of Coors Light tying to get that taste out of my mouth:). I also dumped a little gas into the carb so that it would run a little to hopefully create a vaccum and nothing. I have the clear filter and it is just not moving. The only thing I can think of is I installed wrong or a bad pump. Unless their is something that I am missing (very possible), their is only one way for pump arm to go in so that should be right. At a complete loss.

[Curly]

It is possible that the fuel pump eccentric on the camshaft has finally worn away. That would keep the pump from working. Seen this a time or 2.
Pull the pump and look a the drive, see what condition it is in. If it is worn, then the only cure is a new cam or an electric pump.

Curly

[jwillys]

The new pump was bad. Returned it and put a new one in and it started right up! Thanks for the advice.

[OlneyJeeps]

Glad to help...
Thanks for the beer!