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Old 07-16-2009, 07:20 PM
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trularin trularin is offline
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Join Date: May 2003
Cobra Make, Engine: A Cobra
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Okay team, here is the situation.

The CAM, valve seals, lifters, springs, push rods seals and gaskets are all new. SO is the brand of oil filter.

I have 7 quarts of mobil1 15w-50 a 2 bottles of STP ( for the ZDDP ).

Why is the oil pressure 20 pounds lower than before the CAM swap.

The only thing I can think of is the oil filter, I have never used this brand before, or the CAM bearing to CAM clearance is too big.

Any other ideas why I am down 20 pounds?

I have swapped the oil out once with the same results. The lifters are solids where the old ones were hydraulics. This shouldn't make difference as I have the lifter valley restricted.

Can the oil filter be a POS?

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