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Old 08-31-2005, 06:10 PM   #1
Kensubguy
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Default 99 subaru Oil leak

I had timming belt changed on my 99 legacy and I was hoping to locate the source of an oil leak by the oil pan but the guy who helped me said the seals were dry and did not need to be tampered with. The leak seems to be at the front of the oil pan and then dripping down. What is my next thing to look for. I hate to go pay the dealer but then I might have to. The car smokes at the front when I stop at lights after some driving.
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Old 08-31-2005, 06:47 PM   #2
spdracr00
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nope, do a search, i cant remember what its called but there is a plastic gasket on our cars that sucks butt.. you can replace it with a metal one, but you gotta pull the tranny to get to it. your leak is in the same place mine is. but hell, if its not making a puddle, i wouldnt worry, the bottom of my car is so full of mud and grass, cant even see the oil leak anymore. haha
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Old 09-01-2005, 12:02 AM   #3
Subietonic
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It's a simple fix. The oil pump is leaking. Check out this Leaking Front Crankshaft Seal article. But you have to pull the whole timing belt off again.

Quote:
Originally Posted by spdracr00
nope, do a search, i cant remember what its called but there is a plastic gasket on our cars that sucks butt.. you can replace it with a metal one, but you gotta pull the tranny to get to it. your leak is in the same place mine is. but hell, if its not making a puddle, i wouldnt worry, the bottom of my car is so full of mud and grass, cant even see the oil leak anymore. haha
What you're referring to here is the rear cover plate which would leak down the back side of the oil pan vs. the front that kensubguy is referring to in his initial post. If the oil were coming out of the back end of the engine, this plastic plate would be the first thing that I would check.

Dale
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Old 09-01-2005, 03:25 AM   #4
JPX
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If it it running down the front of the oil pan, it most likely is the front oil seal. Mine did the same thing for a long time until I couldn't take the oil smoking anymore. I had a shop replace it at 84,000 miles, but it needed replacing again at 108,000 miles. I did the second replacement myself and it has been fine at 136,000 miles on the odometer.


Last edited by JPX; 09-01-2005 at 03:32 AM. Reason: added pictures
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Old 09-08-2005, 08:01 AM   #5
Kensubguy
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I have checked to be sure and I have to apologise since it has taken me time to get back to post. The oil is dripping at the back of the oil pan in fact and I gues this means I am totaly messed up here. I guess I did mislead you all here but I hope you can still help me find the problem somehow. I do not know how worse the problem can get but it surely is bothering me. What is the best way to diagonise this apart from running to the dealer.
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Old 09-08-2005, 10:04 AM   #6
Subietonic
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Is this a 2.2L or 2.5L, auto or manual? Couldn't tell from your original post. Four things I'd check, possibly five:

1. Could possibly be your oil pan gasket itself.

2. Could possibly be your rear cover plate. Given that it's a 99 and 1999 was the cutover year when Subaru, IIRC, started replacing the plastic rear cover plate on the back of the engine

3. Could possibly be your rear main seal.

4. Could possibly be your front main seal on your transmission (MT and AT), or leaking torque converter (AT).

5. Could possibly be your rear cam seals. Have you already checked your cam cover gaskets?

For items 2-4 above, you'll have to pull the transmission. For items 2-3 above, you'll have to pull the flywheel too. Any AT problem would be easily identifiable due to the pink-ish/red-ish color of the fluid. MT would be harder to distinguish from an engine oil leak, but depending on whether you're using stock tranny oil, you could possibly distinguish it by the smell. Stock MT oil is much more pungent smelling and thicker than engine oil.

Item 5 is a long shot but I have seen it on DOHC motors. That's why I asked if your motor was a 2.2 or a 2.5L

Good luck and HTH
Dale
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Old 09-08-2005, 05:45 PM   #7
Kensubguy
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Quote:
Originally Posted by Subietonic
Is this a 2.2L or 2.5L, auto or manual? Couldn't tell from your original post. Four things I'd check, possibly five:

1. Could possibly be your oil pan gasket itself.

2. Could possibly be your rear cover plate. Given that it's a 99 and 1999 was the cutover year when Subaru, IIRC, started replacing the plastic rear cover plate on the back of the engine

3. Could possibly be your rear main seal.

4. Could possibly be your front main seal on your transmission (MT and AT), or leaking torque converter (AT).

5. Could possibly be your rear cam seals. Have you already checked your cam cover gaskets?

For items 2-4 above, you'll have to pull the transmission. For items 2-3 above, you'll have to pull the flywheel too. Any AT problem would be easily identifiable due to the pink-ish/red-ish color of the fluid. MT would be harder to distinguish from an engine oil leak, but depending on whether you're using stock tranny oil, you could possibly distinguish it by the smell. Stock MT oil is much more pungent smelling and thicker than engine oil.

Item 5 is a long shot but I have seen it on DOHC motors. That's why I asked if your motor was a 2.2 or a 2.5L

Good luck and HTH
Dale
I will start with the oil pan though I am worried about No.4 since the 2.2L 99 legacy does tend to shift hard and it is getting worse and regular arround the second gear change. I posibly need to clean the underside of the Engine and then say my prayers. I imagine most of the issues you have listed are quite expensive. The issue here is that it is getting smelly and smooky at stop signs.
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Old 09-08-2005, 11:35 PM   #8
Subietonic
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If it's getting smoky and smelly at stops signs, then my first guess would be either the rear engine plate is leaking or the rear main engine seal is leaking. That said though, check your transmission fluid levels. If it's low, that may be the direction the leak is coming from. Either way, the tranny has to come out so perhaps it's time to do a check/repair on that too.

If it's the rear retainer plate or the rear main seal, it's not that expensive, especially if you can pull the tranny yourself. Shouldn't be more than

Rear main seal retainer, 2.2L, 95-04, $12.17, plus shipping
Rear main seal, 2.2L, 95-04, $8.59 plus shipping

Front transmission seal, wouldn't be that much, but if the front tranny seal is leaking then the tranny may have a bad input shaft bearing and that's a bit more work and cost.

None of these would I hesitate to take down myself and repair.

Good luck and keep us updated.

Dale
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Old 09-09-2005, 07:52 AM   #9
Kensubguy
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Quote:
Originally Posted by Subietonic
If it's getting smoky and smelly at stops signs, then my first guess would be either the rear engine plate is leaking or the rear main engine seal is leaking. That said though, check your transmission fluid levels. If it's low, that may be the direction the leak is coming from. Either way, the tranny has to come out so perhaps it's time to do a check/repair on that too.

If it's the rear retainer plate or the rear main seal, it's not that expensive, especially if you can pull the tranny yourself. Shouldn't be more than

Rear main seal retainer, 2.2L, 95-04, $12.17, plus shipping
Rear main seal, 2.2L, 95-04, $8.59 plus shipping

Front transmission seal, wouldn't be that much, but if the front tranny seal is leaking then the tranny may have a bad input shaft bearing and that's a bit more work and cost.

None of these would I hesitate to take down myself and repair.

Good luck and keep us updated.

Dale
Thanks subietonic, The transmission fluid level seems to be okay, infact may a little too much. I intend to have the car checked out at the shop in a week or two but as far as working on it myself, I am one of those who are learning the hang of mechanics and prefer to do the minor things for now but working on it. Thanks much. I will keep the post updated and in the mean time any more info is apreciated.
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