Quote:
Originally Posted by electrowoman
I just installed my new 460 in my boat. The oil pressure is great at idle, and through 4600 RPM's it stays between 70 and 75 psi. I'm using a new high vol. oil pump and a new shaft.
The pressure drops to around 20 PSI like clockwork at 46-4700 RPM's.
I have a 10 quart Milodon pan on it. We set the gap on the pickup...
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The problem
not your oil pump; it is
not because it's an HV pump (HV is absolutely the way to go in your marine engine); it is
not your pump's pressure relief spring; it is
not pump cavitation; etcetera.
In short, the problem rests in your Milodon 10-quart jet boat pan.
Paul
