Re: 440 oil leak
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Re: 440 oil leak



Can you clean up the rear of the engine so that all traces of leaky oil are gone. Then run the engine and try to locate where the oil leak is starting from? 

Look at the oil sending unit for splits too.

Unless the oil filer is cracked from excessive pressure the engine can handle it. But oil pressure usually drops when the oil heats up. 70- 80 at both idle and 60 MPH seems abnormal. Can you verify the pressure readings with a mechanical oil gauge?  What weight oil is in the engine? 

Thanks,
Gary H. 

>  -------Original Message-------
>  I have a 440 that just broke a lose and started leaking oil at rear of
>  engine. I thought it was rear main seal leak and had it replaced.
>  Mechanic said the old seal looked fine, had silicon(black). It held
>  about 15 miles and broke a lose again. I bought this car in Little
>  Rock, Drove it 50 miles on other side of Fort Worth and back to
>  southeastern NC at 3000 RPM (70 MPH) and it only used 2 quarts of oil.
>  It shows 70- 80 lbs oil pressure at idle and at 60 MPH. I've never had
>  that much pressure on any motor I've had. Do you think it could be
>  leaking at back of block at cam or lifter bore plugs and what do you
>  think about replacing oil pump with less pressure? If you think the
>  pressure is too high, what oil pump do you recommend. This problem is
>  starting to get to be a real pain and expensive. Thanks.
>  
>  --
>  --

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