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Jerry, Auto Mechanic
Category: Ford
Satisfied Customers: 2948
Experience:  Mechanic with over 30 years experience with N.Y.P.D. fleet service division
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in a 1988 ford 460 cu in engine what should the ...

Resolved Question:

in a 1988 ford 460 cu in engine what should the compression be the hot idle oil pressure should be
Submitted: 9 years ago.
Category: Ford
Expert:  Jerry replied 9 years ago.
Hi Hotdogia,I looked up the specs for you engine. The oil pressure specs that Ford released for the engine is 40-65 psi at 2000 hot. The give not spec for hot idle ,but a rule of thumb is 10 psi per 1000 rpm minimum. It hot idle you should at least have 5 psi.T They also don't give a number for compression psi., only that the cylinders all should be within 25% of each other.The compression ratio on that motor is 8 to1. A reading of 165 would be fine, any one cylinder that is 25% or more below would indicate a problem. Even if they all read at least 140 psi and were even I would say you have no problem.
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