Mysterious oil leak !

  • Thread starter Thread starter Bill Chan
  • Start date Start date
B

Bill Chan

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.
 
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.
:
:
 
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