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#1 2016-09-06 20:16:34

scoobysaab
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From: SW Michigan
Registered: 2014-11-18
User Number: 25152
Posts: 87

Found location of oil leak, no clue what seal this is?

I used a dye kit to find my oil leak, the location is in the below photos. This is just to the right of the driver side exhaust headers. Any clue?


For orientation, pretend you're under the car with your legs hanging out from the front end.

http://i.imgur.com/5JBqVcE.jpg


2006 Linear AT

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#2 2016-09-07 08:14:07

goob_os101
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From: Arlington, VA
Registered: 2008-02-25
User Number: 2572
Posts: 1107

Re: Found location of oil leak, no clue what seal this is?

mine was the cam seal...fixed with a timing belt job which includes new cam seals


-Goob

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#3 2016-09-07 09:09:35

scoobysaab
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From: SW Michigan
Registered: 2014-11-18
User Number: 25152
Posts: 87

Re: Found location of oil leak, no clue what seal this is?

Hmmm I had my timing belt done by a Subaru shop mechanic at his home garage, but I'm not sure if he did the cam seal. The leak has been a problem since before that job, so I'm assuming he didn't (if indeed that is the culprit).

Is there a good engine diagram with this section of the underside? I'm looking around but haven't found anything with enough detail.


2006 Linear AT

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#4 2016-09-07 13:05:32

scoobysaab
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From: SW Michigan
Registered: 2014-11-18
User Number: 25152
Posts: 87

Re: Found location of oil leak, no clue what seal this is?

I spoke with the mechanic and some other gearheads, they said its an 'external' head gasket leak from the unpressurized oil return drains from the heads back to the pan. They said its caused by the torque to yield bolts failing. Which will eventually turn into a coolant leak and then the inevitable combustion ring failure and overheating problems.


2006 Linear AT

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#5 2016-09-12 12:17:06

elislider
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Registered: 2014-11-30
User Number: 25881
Posts: 395

Re: Found location of oil leak, no clue what seal this is?

these cars typically don't have head gasket issues. however, is this an 05 or 06 and turbo (aero) or non-turbo (linear)?
what's more likely is the crank and cam seals and the power steering pump are leaking

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#6 2016-09-12 12:41:43

scoobysaab
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From: SW Michigan
Registered: 2014-11-18
User Number: 25152
Posts: 87

Re: Found location of oil leak, no clue what seal this is?

06 Linear automatic.

Power steering definitely isn't leaking


2006 Linear AT

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#7 2016-09-12 17:11:26

elislider
accept no substitutes
Registered: 2014-11-30
User Number: 25881
Posts: 395

Re: Found location of oil leak, no clue what seal this is?

they usually don't have head gasket problems but i suppose its possible. it could be a combination of cam/crank seals and the rear main seals, no way to know for sure without pulling the motor and inspecting everything...

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#8 2016-09-12 20:13:13

eurocoffee
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From: Boston MA
Registered: 2012-04-30
User Number: 7218
Posts: 830

Re: Found location of oil leak, no clue what seal this is?

The line is drawn directly on the head to block mating surface. Spray the shit out of it with a can of Brake clean and check again in 20 miles, but yea, head gaskets.  sad
For consolation, almost every n/a Subaru from our generation will start leaking there. A little or a lot, most will leak at around 100k. Replace with STi gaskets.


This is my Saabaru. There are many like it, but this one is Mine!

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#9 2016-09-13 18:49:00

theleveler
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From: Long Beach, CA
Registered: 2009-06-08
User Number: 3752
Posts: 1157

Re: Found location of oil leak, no clue what seal this is?

eurocoffee wrote:

For consolation, almost every n/a Subaru from our generation will start leaking there. A little or a lot, most will leak at around 100k.

I can also anecdotally attest to this based on my N/A subaru experiences

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#10 2016-09-13 21:02:16

scoobysaab
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From: SW Michigan
Registered: 2014-11-18
User Number: 25152
Posts: 87

Re: Found location of oil leak, no clue what seal this is?

unamused

welp, I guess I'll have to get that fixed at some point. Not even sure the car will be worth it by the time I need to do it


2006 Linear AT

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