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Old 04-21-2010, 09:52 AM   #1
emsfd125
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Default Loosing Oil UPDATED!!! PLEASE HELP

So I parked my car and saw a few drips on the ground below the passenger side of my FMIC Piping where the coupler is, it happens everytime I go for a drive I drip a few drips of oil on the ground. Is this caused by blow-by?

It boosts perfect at 20psi, pulls normal, but sometimes after I drive it hard and come to a complete stop a faint bit of smoke comes out my exhaust pipe. Do I need an Oil Catch Can? Could the turbo be bad even though its pulling and boosting?

Any help would be appreciated.

UPDATE: Took off intercooler piping on turbo side very faint amount of oil, took off intercooler piping on throttle body there is a bit of oil, i can swipe with my finger and by bov there is a bit of oil. i stuck finger inside of the turbo and its bone dry, i cleaned off the piping and put it back in the car, still seeing oil drips and its DEF coming from passenger side coupler right by the core of the FMIC, this all started after i got my oil changed and i put 10w30 castrol in the car also took off turbo inlet looked in and no oil.

also i go it up to operating temperature and took off hoses to the throttle body on both sides no steam or smoke coming out and oil cap came off no steam or smoke so i dont think its a ring or piston issue (i hope not) also my oil level is FULL
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Last edited by emsfd125; 04-22-2010 at 09:22 AM.
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Old 04-21-2010, 10:47 AM   #2
Scooby921
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To get that much oil in the piping such that it leaks there are two problems I can think of.

1. You have a good deal of oil blow-by coming out through the PCV valve or valve cover vents. They vent back to the intake, so that oil is mixing with the intake charge.

2. The seals in your turbo are slowing going bad. The intake air is sucking up some of the oil as it comes out of the compressor and leaving it behind in the IC piping. Bad seals would also drip some oil into the exhaust and blow a little white smoke out your exhaust.


Even with some minor issues and leaks the turbo can still make target boost. It just has to work harder to do it. Its entirely possible that you can have a small issue and not "feel" any difference.
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Old 04-21-2010, 10:55 AM   #3
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Are you hitting target boost? Have you replaced your coupler yet, or taken it off to see if there is a massive amount of oil in there? Blow by is normal but not to have it seaping out of all of the couplers. A little bit is ok but if its dripping out of your coupler your coupler is obviously not tight enough. Is it possible its coming from elsewhere and dripping down your piping to the lowest point?

Will
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Old 04-21-2010, 12:18 PM   #4
skimobile
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If the coupler was loose enought to let oil drip through, at 20 lbs of boost it should have blown off the piping.
+2 on making SURE you can tell where the oil is coming from 1st before you get too far ahead of things.
If it is the coupler, pull it, clean the piping, reinstall and retighten.
I had a FMIC pipe blow off once because a mechanic who worked on the car forgot to tighten a hose clamp. It sucked some oil through the pipe when it blew off but I cleaned it up and reconnected and never had another problem / oil issue in the last 2 years of using the turbo & no blow by in the catch can.
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Old 04-22-2010, 01:19 AM   #5
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Quote:
Originally Posted by skimobile View Post
If the coupler was loose enought to let oil drip through, at 20 lbs of boost it should have blown off the piping.
+2 on making SURE you can tell where the oil is coming from 1st before you get too far ahead of things.
If it is the coupler, pull it, clean the piping, reinstall and retighten.
I had a FMIC pipe blow off once because a mechanic who worked on the car forgot to tighten a hose clamp. It sucked some oil through the pipe when it blew off but I cleaned it up and reconnected and never had another problem / oil issue in the last 2 years of using the turbo & no blow by in the catch can.
agreed
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Old 04-22-2010, 09:22 AM   #6
emsfd125
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updated
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