Mysterious oil leak !

Discussion in 'General Motoring' started by Bill Chan, Aug 1, 2003.

  1. Bill Chan

    Bill Chan Guest

    I have a 1990 Volvo 740 turbo, I am loosing a quart of oil every two weeks.
    The oil seems to run from above the junction where the water pump joins to
    the cylinder head via the rubber seal. It ruined two water pump rubber
    seals already because of oil contamination.
    Head gasket seems OK, front oil seal on overhead cam shaft seems ok also,
    no noticeable oil from that area.
    Any ideas, anyone, and thanks.
    Bill.
     
    Bill Chan, Aug 1, 2003
    #1
  2. Bill Chan

    Peter Milnes Guest

    Head gaskets can cause this. If you replace the gasket make sure that the head
    is skimmed and that the top of the block is also flat. Then torque down the
    headbolts as per specifications (in three steps).

    Cheers, Peter.

    : I have a 1990 Volvo 740 turbo, I am loosing a quart of oil every two weeks.
    : The oil seems to run from above the junction where the water pump joins to
    : the cylinder head via the rubber seal. It ruined two water pump rubber
    : seals already because of oil contamination.
    : Head gasket seems OK, front oil seal on overhead cam shaft seems ok also,
    : no noticeable oil from that area.
    : Any ideas, anyone, and thanks.
    : Bill.
    :
    :
     
    Peter Milnes, Aug 2, 2003
    #2
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