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Thread: 85 Cougar V6 - excessive oil pressure problem

  1. #1
    smaki Guest

    Default 85 Cougar V6 - excessive oil pressure problem

    My 1985 Cougar V6, when started, it blows the oil filter gasket. Do you know what would cause this? Any suggestions as to a fix or repair would be appreciated. The engine has 60K miles and ran great until this problem developed.

  2. #2
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    Maybe the oil feed into the filter itself is partially clogged causing a pressure spike? Have you hooked an actual guage to the car to see what your pressure actually is?
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    maybe lots of piston slap, but I doubt it.
    Quote Originally Posted by jcassity
    I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
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    someone put one of those ubber super oil pumps on it.
    Three 88's

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    And you've already checked to make sure you don't have two gaskets in there (one on the new filter, one still stuck to the engine)?
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  6. #6
    smaki Guest

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    Thanks for the input.

    Is there a pressure relief valve for the oil pump/oil filter? The engine is totally stock with 60K miles. Don't have dual gaskets at the oil filter. If the oil feed is plugged, wouldn't I have less pressure to the filter rather than having it blow by the oil filter gasket?

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    the oil pump relief spring is bad/restricted/has trash in it. either way it is time for a new oil pump.


    I went through this a few years ago on a 5.0 it would blow the fliter in two pieces.

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    Well i have a question that is similair to the object at hand. I got an oil leak coming from the seal just above where my oilfilter turns into, if i were to repalce this, would it be a pain in teh ass?
    1988- 3.8- T-bird- sold 2005 Grand Prix, GTP- COMP.G MODS: Inferno Hood, GXP spoiler, Liquid Metal Wheels,K&N Intake,LED taillights,LED reverse lights, LED interior lights, 180*,605s, Pacesetters

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    nobody knows?
    1988- 3.8- T-bird- sold 2005 Grand Prix, GTP- COMP.G MODS: Inferno Hood, GXP spoiler, Liquid Metal Wheels,K&N Intake,LED taillights,LED reverse lights, LED interior lights, 180*,605s, Pacesetters

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