had oil cooler replaced with hpop 5000 mi ago, oil temps have been coming up again. i am in the middle of arp studs so i pulled cooler and found large pieces of plastic in the oil well. is there anything in the engine that can spit off plastic like that? the dealer machanic broke a ton of stuff and i wouldn't doubt at all that he didn't even clean out oil well. long story!!! i am wondering if anything could cause this before i drive 150 miles to the dealer i broke down close to and robbed me blind. to of course have a polite conversaition!!