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Re: Oil pressure problems
+1 on first step being verification of actual oil pressure with a QUALITY mechanical gauge. It may just be as simple as a faulty sending unit/gauge, but multiple things can be the cause of low oil pressure, such as:
*Worn main bearings
*Worn connecting rod bearings
*Worn camshaft bearings
*Damaged/faulty oil pump, or broken/stuck relief valve and spring
*Improperly clearanced or secured oil pickup tube, or tube is cracked
*Oil sludge or debris blocking pickup tube
*Clogged oil passageway leading to sending unit
*Faulty oil filter bypass
*Oil filter failure by internally collapsed filter media (usually Fram or other cheap filters)
*Improper length dipstick causing oil foaming due to incorrect oil level.
*Internal oil pressure leak (internally cracked block)
*Improperly secured distributor or distributor-oil pump drive shaft retainer missing.
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