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Thread: Shim oil pump

  1. #1

    Default Shim oil pump

    I've heard of people placing washers between the oil pump & pick up tube. Is there some "rule of thumb as to how much is needed for an increase in pressure? F-9

  2. #2


    You want to restrict the flow?

  3. #3


    just would be more comfortable with a little more pressure. Everything is new, but set up a little loose.

  4. #4


    restricting the flow on the suction side is not going to give you more pressure. If the engine is new why is it loose?

  5. #5


    I don't think you would want a washer between oil pump and pickup. However there is a spring inside the pump that a lot of people,including myself, use a washer to shim up and add more pressure. An 1/8th inch thick washer should do.

  6. #6
    Join Date
    May 2007
    Post Falls,ID


    Definitely don't want washers between tube and pump,it will suck air...if you want more pressure,go with a Melling M127
    No matter how hard you cant fix stupid!!!

    If you build it will turn left!!!

  7. #7


    I did put the washer at the spring inside the pump & seemed to help. thanks to all for your input!!! I still might look into the melling pump too.


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