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Thread: Fuel pump rod stuck

  1. #1

    Fuel pump rod stuck

    A friend of mine is wanting to trade his 402 bbc for my 350 sbc. But- when he bought the long block assembly it was fresh built, never ran, and still needed to run in the break in period. When we went to crank it, no fuel pressure at all. The pump was already on it when he got it. We pulled the pump off, and the rod was stuck in the bore. Wouldnt budge at all. He tried cranking the engine while I held my finger on it and it didnt move either. No oil was leaking around the bore, it was still clean and dry like no oil had even got to it. He put a cover plate on it, got an electric fuel pump, and it runs fine with no problems. Anybody ever had this problem, what causes it to seize, how do I get it out to fix it, or do I just leave it alone?

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    Sep 2007
    Oh brother....Now someone wants to trade you a 402 for your 350.

  3. #3
    Senior Member EXPERT BUILDER
    Join Date
    Oct 2007

    Bigblock W/ Stuck Pump Rod

    check the bolt in the front of the block, might be too long hitting the p.rod. If thats the case you are probably stuck w/ an elec. pump now. Kris

  4. #4
    Join Date
    May 2005
    Dexter, New Mexico
    It's either flattened the eccentric on the cam or mushroomed the end of the rod so it won't come out except with a giant hammer/punch. Somebody screwed the pooch by not using assembly lube on it. Electric pump...... 8) JB PS the bolt in the front will lock it down but I'd bet the damage is already done.

  5. #5
    Senior Member DYNO OPERATOR
    Join Date
    Feb 2009
    If it wiped the lobe off the cam, it is probably full of metal shavings. Next thing is no oil pressure.

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