Re: oil pressure problem
Your original problem sounded like oil getting away from pickup,Your next problem sounds familiar,you did'nt say what pump you put in when you changed,but I ran into problems w/ 3/4 pickup hex drive pumps that melling has,they idle good and drop pressure when rev'd.I sold several and everyone has been took back out& replaced for that reason,replaced with 5/8 pickup HV melling select pump and fixed it.
It acted like cavatation,but could'nt get to stop tried different pickups,clearances on pickup,overfill w/oil, just switched to 5/8 pickup pump and fixed everytime.
Years ago we used run 3/4 pickup bbc pumps in sbc without any problems,so I don't know why we could'nt get those pumps to work,I remember comparing pumps and could see no difference other than pickup diameter.
Mike Taylor 3601
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