Bad oil pump (or partial blockage, or similar) causes low pressure,
which causes overheating (oil flow is a major factor in cooling) and
galling which causes more heat, etc., etc. Also possible bad machinist
turns mains to wrong size.
Regards, Bill
Slightly Classics
Frank Clarici wrote:
> A crankshaft to wipe out?
>
> Jr's Mini, 1274 A+ engine, .60 over.
> We had the crank turned because it was wiped out when he bought the
> engine. 5 psi oil pressure. So out with the crank and off to the
> machinist.
> <snip>
> Rod bearings look OK, used but still silver. Maiuns are scored and
> chunked out. Crank is full of grooves and ridges too.
> It has been cut to .30 over already so it's an anchor now.
> Thrust washers are fine, just the mains.
> Any ideas? And would this cause it to run beyond hot? Or dit the
> beyond hot cause the crank to wipe out?
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