Just when I think things are OK....it bites me!!! Anyway I have a 460 that runs great, does what I need it to do and when, but just recently I had a problem with
oil pressure. I was running a stock sump pan, and noticed one evening that lifters were clattering. I looked at the gauge and saw low pressure (about 10psi). I made it home and added about 1 1/2 quarts which seemed to help the cruising pressure (about 50psi) but when I stopped pressure dropped to 0 then up to 20psi.
To make a long story short, I pulled the pan and to my surprise I found the pickup tube laying in the bottom of the pan. I decided it was time for a change, so I went with a milodon 10 quart pan made for a jet boat, went with a new pump, and measured the
pickup for proper location, and while I was at it replaced the main bearings (only 6000 on engine, but the pan was off) finished everything off added 11 quarts of 20-50 Kendell, and happily went on my way only to find out that the rapid deceleration problem still exists. I pulled the pan again, checked everything again, made sure all doors were opening, and in the right direction.....same problem.
When I stop even slightly agressive, the pressure drops to 0 momentarily then up to normal...Any ideas would be greatly appreciated.
John
460 oil pressure.
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