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Fuel pump headed south? 200

uid 27's pic
posted by  Art Benstein on  Mon Jan 24 04:54 CST 2005
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last visit: Fri Oct 17 20:10 CST 2014
[RELATED]

If you're quick you can save it. I'm guessing either the pre-pump (in the tank) is not working, or its hose has disintegrated. Not getting fuel from the tank makes the main pump suck air and make noise. Too much of that eventually wears it out -- I hear.

First, fill the tank completely. The reason for this is to bring the tank to a level where gravity feed alone will keep the main pump supplied. Does it still make noise? If so, I think I guessed wrong. If it is much smoother then, make sure the pre-pump's fuse is good (#5 I think) then listen for it. Either way, if the fuse is OK, you'll be needing to pull the fuel tank sender assembly to fix the pre-pump and hose. Buy a new filter sock, sender o-ring seal and hose before beginning. You may also need a pre-pump, and a good length of 5/16" ID fuel hose (not fuel injection high pressure) depending on the rust you may find in the fuel return pipe.

There is a tool that makes removing the big bung nut easier. Just be safe around fuel; no sparks allowed.
--
Art Benstein near Baltimore






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