If you have decent pressure at cold startup and low to nonexistent at idle once
warmed up these are symptoms of bad bearings. The noise could either be the
cause of poor pressure or the result of it. Either way isn't good. Pump is not
too tough to change if you don't mind on your back work but probably will not be
the problem.
Grant 50 3100
Charles Culver wrote:
> Suddenly have a hard time holding oil pressure, especially after driving for
> long distances. Now I have an engine noise accompanied by an increased
> difficulty in holding oil pressure. Could this be an oil pump, and how hard
> is it to change? The engine is a 1959 model 235.
>
> Thanks-
>
> Smokey
> '50 3600 5-window
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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