[mshac]

You raise a great point about troubleshooting low oil pressure! Too many engines have been condemned that only needed this oil pressure adjustment. My friend's A&P wanted to do an overhaul on his O-320 due to low oil pressure at idle. I told him to have the A&P adjust the oil pressure before tearing down the motor. Sure enough he got the pressure up to acceptable levels and the plane/engine is still flying today.