oil pressure
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That's not good. I would hope for at least 40 psi at 2000 RPM, but the rule of thumb is 10 psi per 1000 RPM. So 20 PSI at 2000 wouls suffice.
I have heard of the 351M and 400 barely getting much more than 0 at idle.
How many miles on the engine? Have you recently changed the oil filter?
Josh
I have heard of the 351M and 400 barely getting much more than 0 at idle.
How many miles on the engine? Have you recently changed the oil filter?
Josh
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Joined: May 2009
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From: North Carolina
i have an oil pressure problem with my 302 but the rear main is leaking so i think thats probly the problem. im going to replace the rear main this weekend so that will hopefully solve the problem.
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my 302 runs sometimes close to 60 psi, but thats with ftf (foot to floor), usually runs bout 20-45 cruisin, depending on temp and rpm's.............. 18-20 is low, but its somethin.... I'd get the oil restricter kit, then an oil pump
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would you mean high PRESSURE or high VOLUME???? there is a difference and yes they do sell both, 351M/400's need higher pressure, just in case you didnt know
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Joined: May 2009
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From: North Carolina
what is the difference?
Laughing Gas
Joined: Apr 2001
Posts: 868
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From: New Glasgow, Nova Scotia
The 351M's were famous for loosing oil pressure, I have one noe that does exaclty what yours does. Good pressure cold then it drops right off when hot. If the rest of the engine is good , doesn't knock or smoke. I would replace the mains and rod bearings. If they are the stock ones in the engine now, you can order 2 thou oversize to cover crankshaft wear and a few hours later you should have good pressure again.I did this to 2 of mine years ago and they ran for years afterwords and I have a 4X4 now that I'm fixing that will get the same treatment. If the engine is shot , swap in a 460,easy to swap in, same gas milage , more power and they are bullet proof.
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