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Old 06-09-2013, 08:20 PM   #1
tunertype
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Default Leaking oil from timing cover

As title says I am leaking quite a bit of oil from the timing cover area. Any ideas what this is? I have a 2009 WRX
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Old 06-09-2013, 08:22 PM   #2
cosseywrx
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Cam shaft seal possibly. I vote most likely.

I had a slow leaking one. Could be warn or in there crooked.

Gl
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Old 06-09-2013, 08:26 PM   #3
Jessekrs123
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As stated above a cam seal or possibly even the crank seal.

See where the oil might be coming from. If in the middle, more than likely your crank seal. If on either side of the engine, more than likely a cam seal.

Pull the front covers off and see what you find, should be pretty apparent.
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Old 06-09-2013, 08:43 PM   #4
tunertype
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Thanks guys was afraid it was one of these seals. So I've got 69k on the engine and the timing belt is probably covered in oil. I should probably do the timing belt while I'm in there and replace the seals? Or wait the appropriate 2ish more years of miles to do the belt? Can oil hurt the belt?

Last edited by tunertype; 06-09-2013 at 09:29 PM.
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Old 06-09-2013, 10:00 PM   #5
cosseywrx
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As always just check the condition of it first. If the condition is fine then clean and go from there.

If it was me, being a mechanic, i would just do what i could while in there. Cam seals are a quick and easy install.
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Old 06-09-2013, 10:08 PM   #6
SlimJim8804
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Quote:
Originally Posted by tunertype View Post
Thanks guys was afraid it was one of these seals. So I've got 69k on the engine and the timing belt is probably covered in oil. I should probably do the timing belt while I'm in there and replace the seals? Or wait the appropriate 2ish more years of miles to do the belt? Can oil hurt the belt?
Possibly. I've always been told oil leaking on belts can cause premature failure.
The only leak points I'm aware of in the area you described are camshaft seals or the front main seal.
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Old 06-11-2013, 07:26 PM   #7
Mr. AWDriver
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Currently have a crank seal leak myself. Not leaking bad but will be replaced soon as well as other seals.
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Old 06-12-2013, 03:53 PM   #8
ScottamasPrime
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Aren't oil pump gaskets prone to leakage as well?
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Old 06-15-2013, 09:41 PM   #9
tunertype
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So looks like it was leaking from the crank seal. I decided to do the timing belt while I was in there since it should last me my ownership time.(I'll get rid of it before 175k). I only replaced the crank seal because I didn't feel like trying to get the cam sprockets off(I could regret this in the future if those start to leak.

I took the oil pump off and when cleaning it up the crank seal basically just fell out. I didn't need to push it hard or tap it out, so it must have just gotten loose in there and started leaking like crazy. The new seal is snug and tight. I also of course resealed around the oil pump.(there's no real gasket, just gasket maker that is paper thin).

Couple of tips that I stole from the internet when I got stuck..

1) to get the crank timing sprocket off tap the two holes in the sprocket with a M7x1.0 tap and use a few screws in a sprocket puller.

2) I used these videos for most of the instruction on how to do most of the timing stuff. http://forums.nasioc.com/forums/show....php?t=2111702

3) I lined up the passenger side first as those are in the closed valve position and easy to just turn and line up. Putting the belt back and getting the driver side two sprockets to not jump on you totally sucks. I used allen wrenchs propped up on the frame to hold them steady and took the pulley off the tensioner but put the tensioner in place then once everything was good put the tensioner pulley back on and installed the small pulley last, then pulled the pin. The Gates timing set I bought had all the sprocket alignment lines marked on the belt so that made lining things up a bit easier too since I could get one part lined up and have some of the pulleys off and then push them all into place and tension it.]

4) using some kind of thin stiff plastic guide tube(I used a piece of protective plastic from my phone case) to help slide the seal onto the crank shaft is very useful in not getting the seal all bent up and pushed the wrong way when installing it. Must be thin and fairly strong(won't tear or disolve)
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