4g63 Oil System

This is another installment about 6 7 bolt 4g63 oil systems. It s where the oil flows and when. If you see signs of oil starvation on engine parts, it s important to note what is upstream and downstream from it in the oil supply. Knowing where the oil flows helps you determine what went wrong. Chasing damage upstream on the oil system can reveal defects, stuck oil squirters, failed bearings or blockages in the oil galleries. It can also reveal perfectly good parts which means you ve gone too far lo