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Thread: Oil gear clearance

  1. #1

    Oil gear clearance

    Hi guys,
    this message board is SUPER and exactly what i need when rebuilding the 455 engine.

    Later this week i will rebuild my oil pump and i have a question about that.

    Stephen's book talks about the max. clearance for the gears to the pumpcover. I've bought new gears, thrustingplate, and a shim kit.

    But i have one question: the clearance he writes about is the clearance between the pumpcover and the gearwheels, but doesn't gravity pull these gears down to the cover/thrustingplate at all times?
    I can measure the appropriate gasket to put in place, but when i mount everything, won't the gears just fall down on the thrusting plate?

    I could use some help on this one.

    Thanks in advance,
    Sjoerd
    The Netherlands.

  2. #2
    Yes, but the clearance is to allow them to sit on a film of oil and to allow for expansion etc. so that they don't fit too tight.
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  3. #3
    Thanks man, i'll follow the Stephen book then and everything should be fine.
    Thanks for the background info.

    Kind regards,

    Sjoerd

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