Help guys, I have too much oil pressure. I have a freshly rebuilt IO360 A1B that I started for the first time yesterday. The vans gauge showed 110 lbs at idle, I ran it for a few minutes thinking it was fresh oil and cold and would come down when warm or possibly a bad gauge or sender. Today I put a manual oil pressure gauge in line to verify vans gauge and also showed 110 lbs.I screwed the oil pressure adjuster out to decrease pressure until it was at the end of it's limit. I removed it, inspected and replaced, every thing looked good. I managed to get the pressure down to around 95 lbs at idle but immediately goes back to 110 lbs when throttle is applied. I warmed the oil to 180 degrees but pressure stayed at 110 lbs. The ball and spring mechanism looked good. Oil pressure is being taken from port right above right Mag. Any ideas?
Thanks,
Thanks,