Quote:
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Originally Posted by priobe
OldDog:
Do you know what the distance should be from rod to rod. I will check that tonight.
Oil Pressure is
1000 RPM 20 psi
2000 RPM 25 psi
3000 RPM 28 psi
4000 rpm 28 psi |
Sorry to have been away for a while. I do not know the rod clearance off the top of my head, and my wife put my books (that I left in the living room) in a mountainous pile in front of my dresser. I hated to try to find anything in the pile for fear of an avalanch. I'll get back to you on that one.
I think Patrickt is onto something. Follow his advice first.
Just looking at your rpm verses pressure numbers I'll tell you what I suspect. I suspect there is a flow restriction between the
oil pump and the pressure gauge. There is a big pressure drop at this restriction (say 40 psi). The pressure at the pump is still up in the 50 - 70 range. Somewhere between 2000 and 3000 rpm the pressure at the pump is high enough to open the pressure relief valve built into the pump, which is why the pressure you are measuring levels out at 28 psi. The most likely place for this restriction is in the external plumbing that Patrickt wants you to remove.
The adapter that is bolted to the block may not have the holes lined up correctly. A line may have a bad spot where a chunk folds over and forms a blockage under flow (rubber brake lines do this a lot). I really suspect there is some problem here.