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Leaking Engine oil@ Oil Filter area when cold


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98 Forester with EJ 2.5 auto. It starts to leak oil at above the engine oil cooler when the engine is cold(when left it over night) The oil will drip down to oil filter and make a mess on the drive way but once engine is warm up and the leak will stop(at least I cant see oil dripping)

First I thought its the oil filter that was bad, but I replaced the oil filter with the OEM and the leak is still there.

Is there any gasket btw the block and the oil cooler? I remember when I change my oil, I have seen a big size of nut threaded on to secure the oil cooler where the oil filter seats below.

Any suggestions?

Thanks

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if its not the oil filter gasket itself....i would suspect the o-ring between the oil cooler and the block....i have a small leak from one of my lines to the oil cooler on the WRX...which i origionally thought was the sandwhich plate o-ring so definately take a look around under there to be sure that is what is leaking....

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Is this O ring btw oil cooler and the block made out of rubber? Or is it a copper crash o ring/washer like the oil drain plug washer?

Any one have a part number?

Thanks again

 

 

if its not the oil filter gasket itself....i would suspect the o-ring between the oil cooler and the block....i have a small leak from one of my lines to the oil cooler on the WRX...which i origionally thought was the sandwhich plate o-ring so definately take a look around under there to be sure that is what is leaking....
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i belive is should be a rubber o-ring.....i found it on http://www.1stsubaruparts.com ....i tried to link it but i couldnt.....go to the site go to OEM parts catalog and type in your car 98 subaru forester..... go to cooling, oil cooler, oil cooler (again),gasket....you can view the illustration to make absoultely sure its the right thing....

Edited by EVOthis
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  • 3 months later...

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