Mud in my Veins
Join Date: Apr 2000
Location: Winston-Salem, NC
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Re: 304/changing oil pump- whats involved?
I'll chime in and "ditto" Will's statement. My first engine had low oil pressure....REAL low. I replaced the pump (gears) and sanded the cover down on a piece of glass (it was grooved pretty bad). While it did give me 5#s at idle, it was a complete waste of time & $$ due to the wornout main/cam bearings, & general poor condition of everything else. You _MIGHT_ get a few more pounds out of it, but it'll never "fix" the real problem.
My current engine is a fresh rebuild out of a CJ. It has 60# cold idle, 70+# above 1000rpm, and about 35-40# at warm idle.