On Thu, 5 Nov 1998 Rengrave@aol.com wrote:
> I have drained the oil and dropped the oil pan. The oil pan hasn't been off
> the car in the 15 years I've owned the car. In the bottom of the oil pan,
> under all the very black oil, was a thick gray colored muck, I think this is
> worn steel powder that has settled over the years.
Did the oil seem thin? Was it over-full? Did it smell like gas?
Any of those are a sure sign of contamination ;-)
As for your gray stuff... well, I dunno. Water-contamination comes out
light brown (tan), but gray... beats me. Was there a lot, or just a thin
layer?
> I pulled the oil pump off and cleaned and measured, the allowable clearance
> between mating parts is max. .010", I had between .006" and .008" but I
> noticed small scratches on all the outer services of the middle gear on the
> oil pump. How much affect do these scratches have on oil pressure using 20-50
> castrol oil?
Shouldn't be *too* much. Not so great, but it should work OK. Are they
surface wear or deep scratches? Can get get anything (ie, a pencil) to
make noise whilst moving over?
-Malcolm
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