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Old 07-18-2013, 08:42 PM   #1
trentsize
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Default Oil leaking around and above filter

What would be causing this oil leak above the filter?



05 WRX, no mods.
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Old 07-18-2013, 10:39 PM   #2
pebelz
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oil-cooler gasket
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Old 07-18-2013, 11:01 PM   #3
trentsize
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Easy fix on the next oil change?
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Old 07-19-2013, 07:11 AM   #4
02nismokiller
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Quote:
Originally Posted by trentsize View Post
Easy fix on the next oil change?
It's not a hard fix but it's not the easiest lol maybe an hour to do
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Old 07-19-2013, 02:04 PM   #5
art@grimmspeed
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It is a large nut though. I am thinking it is a 24mm

Last edited by art@grimmspeed; 07-19-2013 at 02:14 PM.
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Old 07-22-2013, 01:18 PM   #6
jonno
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Yes, 24mm and you need a deep-socket to get it.

It's not a difficult job. Make sure you get the new one seated correctly before you tighten it down.
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Old 07-22-2013, 03:18 PM   #7
oaklandish_WRX
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And not have large hands...

you can loosen a bolt on the coolant hardline at the front of the block to make the rotation easier.
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Old 07-22-2013, 03:34 PM   #8
trentsize
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I assume the coolant should be drained before removing the two coolant lines?
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Old 07-22-2013, 03:56 PM   #9
oaklandish_WRX
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Quote:
Originally Posted by trentsize View Post
I assume the coolant should be drained before removing the two coolant lines?
I'm told that it won't drain out that fast if the rest of the system is still sealed, so others claim they have jammed either spark plugs or sharpie pens in each hose as they remove them, then drop the oil cooler assembly as a whole. You'll still have some left dribbling out of the cooler, etc.

given our cars age, I have stockpiled the hoses and clamps for a total re-do when I replace my O/C gasket; will do a nearly full drain and put-back. I can get you the ID of the hoses so you can plan ahead with some sort of plug - PM me if ya want.

bugeyes FTW
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Old 09-01-2013, 06:32 PM   #10
jmgladden
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Anyone know the part number, or where you purchased this gasket? Mine is dripping like crazy, would like to get it fixed asap.
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Old 09-01-2013, 08:51 PM   #11
HinshawWRX
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Purchase at a dealer.
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Old 09-01-2013, 11:48 PM   #12
mod maniac
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You can do this job without removing the coolant lines.
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Old 09-24-2013, 04:44 PM   #13
TBone7281
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Gah, this is EXACTLY my problem... been getting progressively worse over the last year or so. Unfortunately, I just changed my oil 2 weeks ago... went through a total of 8.75 extra quarts of T6 in 7,650 miles. The local stealership has been telling me on and off a year or two that my "oil filter isn't on right and is leaking" even though I've been telling them that isn't the problem.

What do you need to do to replace the gasket? Obviously it's between the oil cooler and block... just held on by one big bolt?
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Old 09-24-2013, 07:30 PM   #14
oaklandish_WRX
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Quote:
Originally Posted by TBone7281 View Post
Gah, this is EXACTLY my problem... been getting progressively worse over the last year or so. Unfortunately, I just changed my oil 2 weeks ago... went through a total of 8.75 extra quarts of T6 in 7,650 miles. The local stealership has been telling me on and off a year or two that my "oil filter isn't on right and is leaking" even though I've been telling them that isn't the problem.

What do you need to do to replace the gasket? Obviously it's between the oil cooler and block... just held on by one big bolt?
~14 quarts in 7650 miles . You sure it's only leaking at the cooler?

There are some write-ups around here...

Short answer: get a new gasket from SOA for a few bucks, drain oil, remove filter, get a 24mm(?) deep socket and remove the oil tube the filter screws onto, flip the oil cooler over* and remove old gasket, install new one, flip cooler back and re-install oil tube, torque to ~40lbft, replace filter. Rock it.

* May have to loosen a coolant hard-line mount to allow enough rotation AND have hands like a 10 YO.

<----------does not have hands like a 10 YO.
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Old 09-24-2013, 07:48 PM   #15
TBone7281
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Quote:
Originally Posted by oaklandish_WRX View Post
~14 quarts in 7650 miles . You sure it's only leaking at the cooler?
No, but after years of searching the forums/troubleshooting I've given up looking for other "culprits". With this recent leakage though it has become downright ridiculous.

Perhaps after I take care of this I'll try to figure it out again. I've had my oil tested by Blackstone who haven't found anything abnormal. Last year I swapped out the turbo, thinking the seals might be bad. I've had it to the dealership to try and see if any of the engine seals/head gaskets/etc. were leaking. No dice on all of that.

Before I noticed the leaking at the oil cooler I was averaging around a quart probably every 1000 miles, which according to various NASIOC threads, is considered "normal". I find that to be ludicrous. My wife's 2006 Saab 9-3 Aero (2.8L V6 turbo) doesn't lose a drop of oil between changes and I've never experienced anything like this prior to me owning this car either.

**Edit - And thanks for the reply. That's about what I figured but wanted to be relatively sure before I started on it.

Last edited by TBone7281; 09-25-2013 at 06:19 AM.
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Old 09-25-2013, 05:38 AM   #16
pebelz
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Make sure that new gasket is seated. It will pop out easy.
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Old 09-30-2013, 02:41 PM   #17
Kevisking
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Easy fix took me 30 min good luck
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Old 09-30-2013, 09:19 PM   #18
Zane
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Quote:
Originally Posted by TBone7281 View Post
No, but after years of searching the forums/troubleshooting I've given up looking for other "culprits". With this recent leakage though it has become downright ridiculous.

Perhaps after I take care of this I'll try to figure it out again. I've had my oil tested by Blackstone who haven't found anything abnormal. Last year I swapped out the turbo, thinking the seals might be bad. I've had it to the dealership to try and see if any of the engine seals/head gaskets/etc. were leaking. No dice on all of that.

Before I noticed the leaking at the oil cooler I was averaging around a quart probably every 1000 miles, which according to various NASIOC threads, is considered "normal". I find that to be ludicrous. My wife's 2006 Saab 9-3 Aero (2.8L V6 turbo) doesn't lose a drop of oil between changes and I've never experienced anything like this prior to me owning this car either.

**Edit - And thanks for the reply. That's about what I figured but wanted to be relatively sure before I started on it.
You have to have a seal leaking somewhere. One of the cam seals or the main seal not seated 100% properly. No way you're burning a quart every 1000 miles.
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Old 10-01-2013, 03:18 PM   #19
TBone7281
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Quote:
Originally Posted by Kevisking View Post
Easy fix took me 30 min good luck
I read a number of people saying you could do this without unhooking the coolant lines. I also read where some people said you had to take off the exhaust pipe that is down there. I tried to figure out a way to do it without removing any of that for maybe 2 hours or so and eventually just decided that while it may have worked for some people, there was no way I could swap gaskets without doing something other than taking out the big 24mm bolt. I ended up only disconnecting one of the two coolant hoses. (The one that goes from the oil cooler directly to the block, not the intermediary metal piping.) Then I could flip the oil cooler over enough to work on it. Plugged the rubber line with a sharpie marker and used the finger of a rubber glove/rubber band to seal the exposed end of the oil cooler.

Quote:
Originally Posted by Zane View Post
You have to have a seal leaking somewhere. One of the cam seals or the main seal not seated 100% properly. No way you're burning a quart every 1000 miles.
I've always kind of assumed so, but the dealership has said they don't see anything wrong more than once. (Though I haven't been back recently.) Inspection is due next month so we'll see if they bring anything up then. It has gone through oil for as long as I've had it though, or pretty close to it anyway... bought in 2006 and it still had some of the warranty left so it was under 36,000 miles. I'm at 157k or so now.
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