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Re: Oil pump failure?

Subject: Re: Oil pump failure?
by Danspeed1 on 2013/12/3 5:06:00

Quote:

rklessdriver wrote:
I would just remove the factory gauge sendor and put the mech gauge in that oil port... fire it up and check for pressure.

As far as the oil band. The oil band is the area of the lifter where it's turned down to smaller diamater to allow oil to pass by to the next lifter and get to the oil hole in the lifter... that area has to intersect the oil galley in lifter bore of the block. If the oil band on the lifter is too high (or too low) oil won't flow to tall the lifters and top end properly.

That is all a product of where the oil band is located on the lifter and the Base Circle on the camsahft - which determines how high or low the lifter rides in the lifter bore.

Are your lifters the riveted link bar or do they re-use the factory plastic locators?

Anything can happen... like I said it's unlikely that the oil pump just died but it could have.... the cam and head swap could have contributed as well.
Will

Here's the thing; Although I would love to diagnosis this problem and potentially save myself having to rip this monster apart AGAIN, I have two issues; I am extremely paranoid and I have very bad luck. That combination leads me to believe that the best thing for my bearings is not to start that car until this issue is resolved. I really don't have the extra tolerances for this engine to chew up, beings as though it runs on 9 psi of boost. I was thinking of pulling the cam when I do the pump and checking the cam bearings to see if any damage was done.

What are your thoughts on run time v.s. bearing wear. Also, someone made a statement at some point that even though I have been getting excellent oil pressure until yesterday, its possible a portion of this motor has been starving for oil since the rebuild. Is there any truth to that? (I sure hope not)

I have the linked bar morel lifers (5206). I need to locate my cam card asap!

DG

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