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Old 10-08-2010, 08:09 PM   #1
Barry Goldberg
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Default Correct rear main seal for JDM engine

I recently bought a '97 outback with approx 200K miles for my daughter as her first car. It has a rear main oil seal leak that I've not been able to fix..(The repairs have been done by my friend who is the chief mechanic at a local Subaru dealership who I trust completely). He has replaced the rear seal twice and it is still leaking. The problem is that this car has a (replaced) twin cam JDM engine ( which I'm told is probably a newer engine than "97) and I'm guessing that he is using the seal for a '97. The number on the engine is 898115. Can anyone tell me what year engine this is and what the correct rear oil seal part number would be?

My mechanic is telling me that there should be no significant differences in seals for different years but I'm not so sure. If he is right, can anyone tell me why this would still be leaking (major leak). He has sealed the pan and everything else just in case. Also, can silicone sealer be used with this seal? MANY thanks...Barry
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Old 10-08-2010, 08:36 PM   #2
AQ Motorsports
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I'm fairly certain all rear main seals are the same for all EJs. I have a seal from a new (phase 2) gasket kit in my old phase 1 motor.

Is he sure the leak is coming from the seal and not the pcv or piston pin cover? Otherwise I would think there is a nick or gouge in the cranshaft or block preventing a good seal.
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Old 10-08-2010, 08:47 PM   #3
Barry Goldberg
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Default Thanx very much

I will pass this on to my mechanic..I had asked him if there was a gouge in the Crank or block and he said that there was none...Barry
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Old 10-09-2010, 12:01 AM   #4
Patrick Olsen
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What about the oil separator cover plate on the rear of the engine? That's a much more common leak location than the rear main seal.

And I'm with Harman - the EJs all use the same rear main seal.
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Old 10-09-2010, 09:55 AM   #5
snoopyone8
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Quote:
Originally Posted by Patrick Olsen View Post
What about the oil separator cover plate on the rear of the engine? That's a much more common leak location than the rear main seal.
Yep, +1 on this...Plastic plate=Doodie
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Old 10-09-2010, 05:44 PM   #6
Barry Goldberg
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Thanx once again for your help..This "small" problem has been a large problem for my daughter as the leak is just above the spot where the 2 pipes come together and the smoke is outrageous..Do you have any thoughts again about using sealer on the seal (if the main seal is truly the problem)? Will the oil eventually just get past the silicone?
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Old 10-09-2010, 06:09 PM   #7
Barry Goldberg
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Hi..Thanx for your help..My mechanic said that he sealed the separator cover plate...He also said that when he redid it the seal HAD NOT pushed back out of its seat..If there was a PCV problem, could it force oil around the seal without actually forcing the seal out??
Many Thanx....B
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