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Old 11-25-2012, 08:21 PM   #1
UABR
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Default Burning oil out exhaust need help

Ok. So i just put in a rebuilt engine and turbo into my 2002 wrx. Engine seems to run fine. But it smoke out the exhaust and it smells like burning oil. I also have an oil leak somewhere around the turbo. And i am loosing power steering fluid somewhere. Power steering pump was just replaced as well. The smoking is constant. It doest start after the car warms up. Anyone have any ideas? I think it might be leaking from the oil return line. I am gonna be replacing the gasket and tube Hopefully tomorrow. But i dont know what is cause the smoke. Engine was built with an upgraded oil pump, manly rods, forged pistons, and the turbo was rebuilt refurbished.
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Old 11-25-2012, 08:57 PM   #2
KillerBMotorsport
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What turbo? Was the engine built to OEM clearnaces? If so, your oil pump is too big and you should go back to the stock size.
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Old 11-25-2012, 10:54 PM   #3
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The turbo is TD04L. Would that be causing the smoking problem? I can find out what size oil pump tomorrow. I know it is bigger then stock though.

Last edited by UABR; 11-25-2012 at 10:59 PM.
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Old 11-25-2012, 11:00 PM   #4
asvec5682
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i had an oil leak for around 1k miles. couldnt find it for the life of me. got the car up on a weekend and turns out it was a hairline crack in the oil filter housing. i was checking all the usual places and it was a faulty subaru filter.
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Old 11-25-2012, 11:04 PM   #5
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After i got everything back together i drove the car for a little over 300 miles on its first oil and filter and then changed everything. I didnt notice any smoking the first 300-400 miles. Then a couple days after i changed the oil i started getting bad smoking out the exhaust.
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Old 11-26-2012, 12:35 AM   #6
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Did you change the oil feed line by chance on the turbo? I made the mistake of "upgrading" the line and my cheap ebay upgraded line did not have the proper size restricter hole in the banjo causing oil to much oil being fed into the turbo. When replacing the oil return line stuff pop the DP off and check the exhaust side of the turbo for oil/wetness.
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Old 11-26-2012, 06:26 AM   #7
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I did not upgrade the line. Put the oil pump is bigger. I bought a turbo install kit but i didnt use the line they provided i just used the stock one.
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Old 11-26-2012, 07:31 AM   #8
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Find out if the turbo oil feed oil restrictor is in place, and it's the right size. If it wasn't in place I'd think there would be a LOT more smoking and the wrong size (too big) can make it smoke too.

Find out if the crank/rod clearances are to OEM spec or bigger. If not, you may need to swap the correct OEM oil pump size in there. Running a larger oil pump in an OEM toleranced engine you can overwhelm the pump bypass (since the oil has nowhere to go) creating a significant increase in pressure. This can have the same effect as the wrong restrictor, pushing oil past the turbo seals.

If the engine wasn't built with higher oil flow requirements it should NOT have a larger pump installed. We see this all the time. People get caught up in the bigger is better mentality when building an engine, but 95% of the time a larger oil pump is more harm than good.
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Old 11-26-2012, 11:53 PM   #9
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The oil pump is a stock sti pump the clearance is .0005 looser than stock. I am getting water and oil dripping from exhaust and its leaking oil out from where the downpipe connects to turbo. I have stock banjo bolt in turbo. I guessing i need to get a more restricted banjo bolt? Im not really sure what to do. I really Appreciate ur responses and help!!! Thank you!
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Old 11-27-2012, 07:19 AM   #10
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What year STi pump? I'm going to go out on a limb and say you need to go back to the 2002 WRX pump.

What is your oil pressure?

Water out the exhaust when it's HOT and been driven or just during warm up?
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Old 11-27-2012, 09:58 AM   #11
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I dont know my oil pressure. I am needing to get a gauge.

The car was only running for about 10 min and the oil/water was dripping from the end of the down pipe where it connects to the next exhaust piece. It was like a 2" puddle.
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Old 11-27-2012, 12:48 PM   #12
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Quote:
Originally Posted by UABR View Post
I dont know my oil pressure. I am needing to get a gauge.

The car was only running for about 10 min and the oil/water was dripping from the end of the down pipe where it connects to the next exhaust piece. It was like a 2" puddle.
Hit your local AutoZone and get a mechanical one for $15 It will at least tell you if you're seeing too much pressure. Use the rear port or temporarily pull the OEM sensor.

I wouldn't worry about the water. Unless it's streaming out, or it still does it HOT. It's probably just condensation.
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Old 11-27-2012, 11:39 AM   #13
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Buddy had the same thing happen with turbo upgrade and it was too big of an oil restricter
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Old 11-27-2012, 11:41 AM   #14
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Can u log oil pressure with rom raider?
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Old 11-27-2012, 12:11 PM   #15
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I didn't upgrade my turbo. Its just a TD04L. Unless thats not the stock one. The oil pump is upgraded though. An sti oil pump. Still waiting to find out what year its from.
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Old 12-17-2012, 05:19 PM   #16
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Ok so the turbo was bad. Very bad! Also the oil return line was broke. :/ apparently my oil feed line to the turbo was partly clogged which caused the turbo to be starved of oil. So it went bye bye. Got a new turbo and line and everything seems to be working good now! Thank you everyone for ur posts!!
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