this would generally be due to the oil warming up and thinning a
bit. it is expected, and in most manuals you'll see them give
oil pressure values with the engine warmed up. as long as your
gage always shows some sort of pressure (more than say 15psi), i
wouldn't be too concerned about it.
--- "Terry L. Thompson" <tlt@digex.net> wrote:
>
> This is a question about my '50 ford, but it's a general
> mechanical
> question.
>
> The engine is from a 1976 Ford truck. And it seems to run
> fine, but
> when I first turn on the motor, it runs the oil pressure at
> about 50 lbs.
> Once it's fully warmed up and I've been driving it around, the
> pressure
> drops to about 35 lbs of pressure. (The oil according to the
> dip stick is
> at a good level.)
>
> Is this normal for engines? And if not, is this symptomatic of
> anything
> I could possible check out (failing oil oil pump or whatever)?
>
> -Terry
> '76 Spit 1500
> '50 Ford truck
>
===
nikolai jaremka
72 spitfire mkIV
east aurora, new york
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