amusingarts
Well-Known Member
I built my 273 quite a few years ago with a high output oil pump (I was getting about 75 psi on my mechanical oil gauge).
Recently I've actually started driving this car and after about 200 miles I noticed smoke out of the exhaust. I've also noticed dirty plugs and an oil film inside my new exhaust pipes.
I said to myself, "OK, high output oil pump bad. Must install normal pump."
I bought said Mellin standard pump, installed it, and could not get it to prime with the priming rod. I say this based on the fact that while I was turning the priming rod with a drill I could get no movement in the oil in my oil gauge supply line, which is translucent plastic.
So, I pulled the pan again to inspect everything and it all looked good. I pulled the new pump and test pumped it in a vat of oil and it pumps like crazy. the pick up is parallel with the bottom deck of the block and I'm at a loss to understand why I don't have pressure.
After using the rod for priming without success, I pulled the plugs and cranked it with the starter. Still no movement of oil up to the gauge. Removed the new filter (PH8A) and found it to be pretty full of oil so I topped it of and reinserted it.
My question is could there be a problem with the oil relief valve? Could the relief valve in the filter or the pump be causing this problem? I believe there is also a check valve on the filter housing body that attaches to the block? I'm a little confused because in the past I have had issues with the pressure relief valves (BMW 2002 & Mustang GT). In both of those cases it literally blew the filter off the seal and pumped oil everywhere so it would seem to create the opposite problem I'm having.
Any insight would be appreciated.
Recently I've actually started driving this car and after about 200 miles I noticed smoke out of the exhaust. I've also noticed dirty plugs and an oil film inside my new exhaust pipes.
I said to myself, "OK, high output oil pump bad. Must install normal pump."
I bought said Mellin standard pump, installed it, and could not get it to prime with the priming rod. I say this based on the fact that while I was turning the priming rod with a drill I could get no movement in the oil in my oil gauge supply line, which is translucent plastic.
So, I pulled the pan again to inspect everything and it all looked good. I pulled the new pump and test pumped it in a vat of oil and it pumps like crazy. the pick up is parallel with the bottom deck of the block and I'm at a loss to understand why I don't have pressure.
After using the rod for priming without success, I pulled the plugs and cranked it with the starter. Still no movement of oil up to the gauge. Removed the new filter (PH8A) and found it to be pretty full of oil so I topped it of and reinserted it.
My question is could there be a problem with the oil relief valve? Could the relief valve in the filter or the pump be causing this problem? I believe there is also a check valve on the filter housing body that attaches to the block? I'm a little confused because in the past I have had issues with the pressure relief valves (BMW 2002 & Mustang GT). In both of those cases it literally blew the filter off the seal and pumped oil everywhere so it would seem to create the opposite problem I'm having.
Any insight would be appreciated.