Oil Pump Blueprinting

[Jim Nilsen]

I just bought a new oil pump to go with my new oil pan and was wondering how many of you blueprinted your oil pump? I am considering it to be an important factor, but with it being a high volume pump will it really be that neccessary since I will probably be bypassing most of it right back to the pan anyway?


Jim Nilsen

[SStrokerAce]

Jim,

I usually blueprint used GM pumps back to spec. The new out of the box ones are right were the need to be most of the time, a little TLC can help them out some.

Bret

[indyjps]

wouldnt hurt for piece of mind, at least deburr the passages to make sure theres no flash in them that could break loose.

[Jim Nilsen]

Thanks for the replies. It resassured me to take it apart and check. I have .003 clearance between the cover and the gears and from what I have read it should be ok but others go with .001 to .002.
It looked really nice and clean inside and was cast better than I would have expected.

I looked in a few books for reference on what to torque the bolts to. Does anybody know or have a reference to look at? I keep looking and I know I will find it somewhere

Thanks again, Jim Nilsen

[SStrokerAce]

Thanks for the replies. It resassured me to take it apart and check. I have .003 clearance between the cover and the gears and from what I have read it should be ok but others go with .001 to .002.
It looked really nice and clean inside and was cast better than I would have expected.

I looked in a few books for reference on what to torque the bolts to. Does anybody know or have a reference to look at? I keep looking and I know I will find it somewhere

Thanks again, Jim Nilsen

I'm guessing 18 ft lbs sounds right but double check that