blue smoke

[rstray]

hey guys, im already guessing that i know the answer to this one, but i wanna be sure...
I have puffs of blue smoke out the tailpipe when i start the car, and after i let off the gas after boosting....no boost loss yet, but im guessing that my 14b has had enough of 15psi? let me know what you guys think.

thanks for the space

ryan

 

[jinxltd]

well after carefully typing in Blue Smoke into the seach engine located @ the top of the thread, this is one of the many things i found & i Quote

TSIHero
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Car: 97 Talon TSi
From: Irwin, Pennsylvania
Registered: May 2005
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Reputation: Smoke out exhaust - blue/white possibly turbo?

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So I was on a hill and put a pretty big load on the motor and a huge pile of smoke came flying out the exhaust. Pretty much everytime I shift a whole pile of smoke comes flying out the exhaust. Basically everytime the throttle plate closes.

The smoke is either blue or white its real hard to tell sometime but I know I was low on oil so I was deffly burning oil. I believe my coolant levels are fine but its hard to tell.

I took the intake pipe off and there was a bit of oil laying in front of the fins. I grabbed the center bolt of the turbine and I can shift it a few milimeters up and down. When I got the thing (4 months ago) it had no shaft play what-so ever.

In front of the blades were a few hairline scratch marks. I have no idea where those came from unless something went down the intake pipe and was bouncing around.

How do I go about knowing if the turbo is the source of the oil problem?

I know for a fact that my valve cover is leaking oil into the first cylinder as I looked down there and noticed a pile of oil on the spark plug. I got a new cover and seals on the way.

I'm going to try to compression test this week to see how the engine is as I never ran one on it yet. Leak down test will follow that.

But my question is: neither of those will tell if the turbo is leaking or not. So how do I know if it is that?
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04-30-2006, 08:59 PM #2
fallenauthority
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Car: 95 Talon TSi
From: Waldorf, Maryland
Registered: Oct 2004
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Reputation: Well if you have a couple millimeters of shaftplay then your turbo is pretty much shot. The way you are saying that it blows smoke when under load, which would mean its most likely under boost, is another sign that a turbo is blown. When i blew my turbo it smoked a bluish white as well. Another quick way is to disconnect the lower intercooler pipe and see if any oil pours out. If it does, its a sure sign.
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04-30-2006, 10:08 PM #3
TSIHero
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Car: 97 Talon TSi
From: Irwin, Pennsylvania
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Reputation: Quote:
Originally Posted by fallenauthority
Well if you have a couple millimeters of shaftplay then your turbo is pretty much shot. The way you are saying that it blows smoke when under load, which would mean its most likely under boost, is another sign that a turbo is blown. When i blew my turbo it smoked a bluish white as well. Another quick way is to disconnect the lower intercooler pipe and see if any oil pours out. If it does, its a sure sign.


Should I be looking for OIL in the lower intercooler pipe? I took my J pipe off the other day and there was slight oil in it like a small drop but I didn't into the LICP yet.

Would there be a whole pile of oil sitting down in that pipe? Is that what i'm looking for?

I bet there's 1/32nd of shaft play in the turbo. It's only 4 months old too. I got a 12 month warranty from TC.com. So i'll be using that.
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05-01-2006, 12:23 AM #4
MrBoxx
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Car: 95 Eclipse GSX
Timeslip: 15.537 @ 89.160
From: Ann Arbor, Michigan
Region: Midwest
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Reputation: Sounds like the turbo to me, especially the "smoke after every shift" part. As mentioned, check the lower intercooler pipe and the intercooler for a pool of oil. If it's there, best cash in that warranty. Check for shaft play periodically to see if it's getting worse. If you can see scratches in the compressor housing in front of the blades, chances are they're rubbing.



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[jinxltd]

antlip
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Car: 95 Eclipse GSX
From: browns mills, New Jersey
Registered: Jun 2005
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Reputation: blueish smoke

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Yes, I know blue smoke means oil, but here is my situation.

I just had my motor rebuilt. New pistons, new rods, new head, everything machined. The whole motor was redone. The turbo has around 20k miles (t28 ported).

After getting it back i installed, new injectors (650), fuel pump (255walbro), fpr (aeromotive), full intercooler kit, ported throttle body with intake manifold to match and wideband. After all this I got the car tuned for 16psi. The wideband is reading 10.9 when wot.
The motor has about 600-700 miles and 2 oil changes since the rebuild.

When I got on it today my buddy behind me said he saw some blueish white smoke. I have no idea what it could be since the whole motor was rebuilt. What could be causing this problem?
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04-30-2006, 09:51 PM #2
RandomGuy
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From: Lilburn, Georgia
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Reputation: I'm not familiar with DSM turbos, but a good guess is oil from the turbo. ... Starion turbos are coolant/oil, not sure of the setup on DSMS
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04-30-2006, 10:11 PM #3
kenamond
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Car: 97 Talon TSi AWD
From: Los Alamos, New Mexico
Region: Rocky Mountain
Registered: Feb 2006
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Reputation: Is there any shaft play in your T28 or any oil in your lower IC pipe?
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04-30-2006, 10:25 PM #4
Dark_Horse
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Car: 95 Eclipse GSX
From: Castle Rock, Colorado
Registered: May 2004
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Reputation: Have you done a compression test?

Is the blue smoke constant? Only during shifts etc?
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04-30-2006, 10:28 PM #5
ThunderValley
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Car: 90 Talon TSi AWD
From: Escanaba, Michigan
Registered: Jul 2005
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Reputation: Your valve guides could be leaking oil past the valves. Or a cracked piston ring from the rebuild. There are alot of ways to get oil into the engine and out the exhaust pipe. Is there a puff of blue smoke on start up? That would point towards the valve guides. Pressure test the cylinders and check the rings. Good luck and let us know what you find out!!
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04-30-2006, 10:32 PM #6
antlip
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Car: 95 Eclipse GSX
From: browns mills, New Jersey
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Reputation: There is no shaft play at all, I checked it yesterday. No I have not done a conpression test, Im just going on the assumption that the shop rebuilt my motor properly. The intercooler kit is brand new and has about 1 week of use. I can take off a coupling and check for any oil in the piping.

Does anyone think this could just be some oil burning off still from when the motor was apart and rebuilt?
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04-30-2006, 10:37 PM #7
antlip
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Car: 95 Eclipse GSX
From: browns mills, New Jersey
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Reputation: Quote:
Originally Posted by ThunderValley
Your valve guides could be leaking oil past the valves. Or a cracked piston ring from the rebuild. There are alot of ways to get oil into the engine and out the exhaust pipe. Is there a puff of blue smoke on start up? That would point towards the valve guides. Pressure test the cylinders and check the rings. Good luck and let us know what you find out!!



No smoke at all on start up. My friend said it happened when I took off in first. The head was a fresh rebuild, stainless steel vavles, 3g lifters, crower valve springs and retainers and new valve guides.
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04-30-2006, 10:52 PM #8
RandomGuy
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From: Lilburn, Georgia
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Reputation: Quote:
Originally Posted by antlip
There is no shaft play at all, I checked it yesterday. No I have not done a conpression test, Im just going on the assumption that the shop rebuilt my motor properly. The intercooler kit is brand new and has about 1 week of use. I can take off a coupling and check for any oil in the piping.

Does anyone think this could just be some oil burning off still from when the motor was apart and rebuilt?

No
1) Not if it was built by a half legit shop
2) You said a week passed by, it would have already burned up
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04-30-2006, 11:17 PM #9
Dark_Horse
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Car: 95 Eclipse GSX
From: Castle Rock, Colorado
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Reputation: Quote:
Originally Posted by antlip
There is no shaft play at all, I checked it yesterday. No I have not done a conpression test, Im just going on the assumption that the shop rebuilt my motor properly. The intercooler kit is brand new and has about 1 week of use. I can take off a coupling and check for any oil in the piping.


Do a compression test no matter who rebuilt the engine.

It's possible that you didn't break in the engine properly and the cylinder walls are glazed now. Or that the cylinders weren't honed properly, or that the pistons are too small for the cylinders (engine builder bored for 30 over, but you have 20 over pistons), or even though it's highly unlikely, that you washed out the rings from running really rich.

If the compression test doesn't show even compression across the board...or if the numbers are low, do a wet test. If the compression numbers come back up, it's most likely rings. If you've got low compresion, I'd still do a leakdown test too just to be as positive as possible, but that's just me.

Once you rule out compression, then we can give you more advice.

 

[rstray]

thanks for your help.

anyone else thinks its just my turbo?

 

[Talonman92]

anyone else thinks its just my turbo?

It COULD be... then again it could be a combination of a variety of things listed in the above posts. Your piston rings could be wearing out if you have an older car... many many possiblities when it comes to burning oil. Check the turbo out if its bad start there otherwise check all your seals and start troubleshooting!