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Discussion Starter #1
I need to check how tight the nut is on the oil cooler that the oil filter attaches to. I don't have the right size deep well socket and wondered if anyone knew what size it was? The o-ring was replaced when the head gaskets were done and every winter there is an occasional oil leak in that area. It is more regular and worse now so I want to make sure the nut is tight.
 

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Discussion Starter #2
I guess I should mention that this is the 3 liter engine in case there is a difference.
 

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Discussion Starter #4
Thanks. I finally called and talked to a Subaru tech who told me. I tightened it about an 8th of a turn so it wasn't loose and I still have a leak. Guess I need to try a new o-ring.
 
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