Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: smaki on March 29, 2006, 11:01:12 PM

Title: 85 Cougar V6 - excessive oil pressure problem
Post by: smaki on March 29, 2006, 11:01:12 PM
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.
Title: 85 Cougar V6 - excessive oil pressure problem
Post by: V8Demon on March 30, 2006, 08:36:55 AM
Maybe the oil feed into the filter itself is partially clogged causing a pressure spike?:dunno:  Have you hooked an actual guage to the car to see what your pressure actually is?
Title: 85 Cougar V6 - excessive oil pressure problem
Post by: Haystack on March 30, 2006, 08:50:48 AM
maybe lots of piston slap, but I doubt it.
Title: 85 Cougar V6 - excessive oil pressure problem
Post by: CougarSE on March 30, 2006, 10:36:58 AM
someone put one of those ubber super oil pumps on it.
Title: 85 Cougar V6 - excessive oil pressure problem
Post by: MasterBlaster on March 30, 2006, 10:55:46 AM
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)?
Title: 85 Cougar V6 - excessive oil pressure problem
Post by: smaki on April 01, 2006, 12:05:46 AM
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?
Title: 85 Cougar V6 - excessive oil pressure problem
Post by: SLEEPER T-BIRD 87 on April 02, 2006, 05:16:00 PM
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.
Title: 85 Cougar V6 - excessive oil pressure problem
Post by: Vantage08 on April 02, 2006, 10:57:18 PM
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?
Title: 85 Cougar V6 - excessive oil pressure problem
Post by: Vantage08 on April 03, 2006, 07:47:52 PM
nobody knows?