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Old 05-24-2004, 11:15 AM   #1
positivePSI
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Member#: 32330
Join Date: Jan 2003
Vehicle:
2002 WRX Sedan
WRB

Default Major oil leak!!

I noticed a few drops of oil under my WRX so I jacked it up to take a look. Major oil slick! The bottom is coated! I can't beleive it didn't smoke.

The oil plug is not the problem. I found a missing piece of cam belt cover gasket, but didn't think much oil was under there? The pan gasket could also be leaking?

Do I have to pull the engine to replace the pan gasket? I need to do tranny work as well. Would it be easier to pull the engine and tranny together or drop the tranny then pull the engine?
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Old 05-24-2004, 12:18 PM   #2
UGotBoost?
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Join Date: Oct 2003
Location: ANYWHERE BUT Newport News
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2002 Impreza WRX
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Hey, I had the same thing happen after an uppipe install. Here's my thread:

http://forums.nasioc.com/forums/show...hreadid=477974

I know the word document link doesn't work anymore, here's what it said:

"You will need to remove the airbox for easier access. Loosen the intake hose and get it out of the way. Un-plug the Mass Air Flow Sensor and take the top of the air box off. There should be a couple of 12mm (i think) bolts holding the bottom half of the air box in, remove those and pull the bottom half out.

You should be able to easily see the valve cover now.

You need to pull the spark plug wires and plugs. I think with the coil-over ignition that car has there may be a 10mm bolt holding the coilpack to the valve cover. Unplug the coil pack and gently pull on the coil pack. If it doesn't come right off look for that bolt and remove it. The coilpack should then come right off.

Once that is off, remove the spark plugs. At this point, be careful not to leave any small parts where they might find their way into the spark plug holes.

There are going to be anywhere from 3 to 8 bolts holding the valve cover on. It's three on my car, but it may be more on that engine. They will be 10mm probably and will probably be the only bolts that you will see on the valve cover. Remove all of those and you should be able to wiggle the valve cover off. (There are probably a couple of alignment pins, so you'll have to wiggle it a bit. It won't just fall off.)

Be careful not to damage the valve cover gasket as you will be re-using it.

Once the valve cover is off, you should be able to see the misplaced gasket. It should be very obvious how to seat it back in it's little groove properly. Make sure the other one (if there is one) didn't fall out our stay stuck to the valve cover. Once those are back in place make sure the valve cover gasket is seated properly on the valve cover and re-install the valve cover.

When you tighten the valve cover bolts, don't over-tighten them, just get them nice and snug. If you overtighten them you risk making the valve cover gasket bulge out and leak. Don't worry, it would take a really stupid amount of tightening to do that, just get them snug.

Once the valve cover is back in place, re-check everything, then re-install the plugs, coil packs, lower airbox, upper airbox, intake hose and don't forget to plug the Mass Air Flow Sensor in. The car will not run very happy at all if you leave the MAF sensor unplugged.

It's not a hard job, and it shouldn’t require any special tools. If that plug hasn't been fully pushed into the engine it should be fine to re-use. If you guys have any questions, feel free to call me. 919-649-8555

These Instructions originally supplied by Steven Rankins"

His instructions are pretty good. The one thing he doesn't mention is that it's generally a good idea to buy a NEW gasket. They're $5 from your local Subaru dealer. I can't remember the part number, but the part's guy should be able to help you out. Look for something called the "Lower Cam gasket", I think. Get some gasket maker from your local autoparts store, shouldn't cost more than $5 or so. Give it time to cure (Mine wanted 24 hours, I gave it 12)



EDIT: Almost forgot... do an oil change (duh).
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Old 05-24-2004, 02:03 PM   #3
WRXMikeH
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2003 WRX
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I just did this on my car to solve a minor leak...those are good instructions, though it's pretty obvious what needs to be done. Worked like a charm!
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Old 05-24-2004, 02:18 PM   #4
positivePSI
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2002 WRX Sedan
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thanks for the help! I'm pretty sure the pan gasket is leaking
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Old 05-24-2004, 03:39 PM   #5
WRXMikeH
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2003 WRX
Blue

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The oil pan gasket is simple...just drain the oil and take out the screws on the pan; you can do it while the car is on jackstands. If you are still unsure where the leak is coming from, try cleaning off all the oil, then adding some dye to the oil. I believe most autoparts store sell this dye which will show up a bright color when hit with UV light (use a blacklight). It makes it extremely easy to spot leaks. That may keep you from changing a gasket unnecessarily. Good luck!
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