Hi all,
Just had my favorite mechanic change the intake gasket on my 91 suburban (350). Specifically asked him not to use a scotchbrite pad to clean the heads but he did anyway. I am concerned that there may be debris in the oil. I have heard of stories of these pads leaving particles that have destroyed the bearings. He ran if for two hours after finishing it up and then changed the oil before he gave it back to me. The question, should I change the oil again in a few hundred miles to make sure there is nothing in the oil or not worry about it. He is a good mechanic so I trust he was clean about what he did but I just wanted to see what the Olympic wisdom was about this.. As a side note he did check all of the things suggested here (timing chain, crank seals ect) and did not find a problem, in fact he said it was in amazingly good shape for 150k on the clock. Thanks for the help.
Mark