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Old 03-17-2009, 11:13 PM   #1
mc2
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1997 Legacy L EJ22
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Default Is this my rear main seal or oil seperator plate leaking?

Hey folks, is this what i think it is?

I wiped it off and the oil is reappearing there. Getting a lot of burning and smoke from the y-pipe joint in the mornings...

Its a 2.2L on a legacy.


This is where my engine meets the transmission at the bottom there you can see the oil starting to weep out. I just wiped it clean yesterday and it's back today...








a photo from the firewall looking forward


Also, i couldn't find the oil seperator plate on the parts diagram, only item 34 which is called a rear main seal retainer? Is that the oil separator plate?

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Old 03-17-2009, 11:56 PM   #2
yarrgh
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yes, 34 is the separator plate. 33 is the rear main seal.
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Old 03-18-2009, 12:29 AM   #3
BAN SUVS
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That seems like a weird leak. Normally a leak on the rear main or the separator plate gets all over the crossmember, and from there your header/catpipe... aka the Spy Hunter mod. Looking at those, it could be those, but seems liek something else to me... I just have no idea what.
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Old 03-18-2009, 12:32 AM   #4
mc2
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Well, it was all over the crossmember and exhaust, cat, etc... I went to the carwash and degreased the hell out of it to find out where the leak was coming from. it must be a VERY slow leak because it doesnt drip at all in the garage... it just burns off in the mornings. it smokes like crazy at the stop signs... out the hood, into the cabin of the car, everywhere... the guys next to me at the traffic lights must think i'm nuts.
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Old 03-18-2009, 12:36 AM   #5
BAN SUVS
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Ah, yeah- that definitely sounds like rear main issues. Plan to replace both, though one might still be okay.
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Old 03-18-2009, 12:53 AM   #6
mc2
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not looking forward to that.

rusty exhaust bolts, rusty crossmember bolts.. its one of those things that turn out being a can of worms... damn.
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Old 03-18-2009, 03:29 PM   #7
ballitch
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If you plan on doing this yourself, I would suggest dropping the tranny instead of pulling the motor. Just so you dont have to mess with the cooling system.

If you can, get the newer style real oil seperater plate made from aluminum or the really newer ones that are steel. The plastic ones are absolute crap and leak. Make sure to clean it all off really good and use some high temp silicone gasket maker, I use permatex ultra grey for just about everything.

In your pics it looks like the pass. side rear cam plate is leaking a little bit also. Take a trip to the dealer to get the little o-ring that is inside. It might take the parts monkeys a little time to figure out what part you want, but they should be able to get it for you.

A can of PB Blaster will help break up those rusty bolts. Spray it on and do something else for 20-30 mins. or so.

If you do end up taking the tranny out, after you remove the drivshaft, there will be a leak at the tailshaft. A spray paint can lid works wonderfully to stop the leak.


~Josh~
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Old 03-18-2009, 05:57 PM   #8
mc2
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Yup, I plan to do it by dropping the tranny.

I'm just going to order the part number that i get from subarugenuineparts.com, so hopefully its the metal plate.

I'm going to be doing the timing belt later as well, so I plan on changing those o-rings then. Is it going to be easier to do it while the tranny is out?

As far as the leak in the back goes, is that going to be rear diff fluid coming out? Just need to know if I'm going to need to top that off afterwards or not.
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Old 03-18-2009, 06:28 PM   #9
nkx
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Quote:
Originally Posted by mc2 View Post
Yup, I plan to do it by dropping the tranny.

I'm just going to order the part number that i get from subarugenuineparts.com, so hopefully its the metal plate.

I'm going to be doing the timing belt later as well, so I plan on changing those o-rings then. Is it going to be easier to do it while the tranny is out?

As far as the leak in the back goes, is that going to be rear diff fluid coming out? Just need to know if I'm going to need to top that off afterwards or not.
that would be tranny fluid leaking out when you drop the driveshaft. the front only has splines and the carrier to keep it in place, the rear of it bolts in.

make sure you paint some alignment marks on the rear of the driveshaft, and on the pressure plate as well.
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