I am truly stumped here.



Here are the symptoms I have,



When I start up cold, both rockers are oiling, drivers side is better than the passenger.



As it begins to warm up, the passenger side will slow and then eventually quit.



After a few more minutes, the driver's side will do the same.



I have checked for blockage in the galleys up to the rockers. I have cleaned out what I can get into on the top side. The pan has been dropped and the pick up cleaned. Everything put back together and checked.



Any one have any thoughts on possible causes? It has been suggested that I have a bad oil pump, which I guess is possible. I have also heard that bad cam bearings can do this also. But which is more likely with these symptoms? I am not entirely mechanically inept, but this has me chasing my tail.

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