temporary blue smoke from exhaust...
03-21-2009, 09:49 PM
#1
Senior Member
SL Member
Thread Starter
Join Date: Dec 2008
Location: SW FL
Posts: 112
temporary blue smoke from exhaust...
temporary blue smoke from exhaust... i was driving, boosted for a bit and saw blue smoke come out of my exhaust like mad. BUT then i came to a stop and it was still smoking but not as bad. about 5 mins later it stopped smoking and havent been smoking while i have been driving around. What could this mean? I mean if i blew something it would smoke constantly right? It doesnt smoke at all anymore.
03-21-2009, 11:02 PM
#4
Senior Member
SL Member
Join Date: Oct 2008
Posts: 743
Well, when I had my supercharger, it wouldnt start after I cranked it about 15 times. When it finally did crank, and I drove off. I had puffs of blue smoke for like 5 minutes. Then it went away. Now my motor blew :D. Hopefully that means something lol.
03-22-2009, 02:45 AM
#8
Banned
SL Member
Scion Evolution
Join Date: Jan 2006
Location: Fremont, CA
Posts: 3,346
Originally Posted by HEYitzMEEE
^ Based on that info, piston rings!
Rings should be smoking all the time, and it wouldn't just stop like that, but it still could be rings.
03-22-2009, 07:31 AM
#10
Banned
SL Member
Scion Evolution
Join Date: Jan 2006
Location: Fremont, CA
Posts: 3,346
Originally Posted by HEYitzMEEE
I think it could be the rings though. I had a fried ring and it only smoked for about 10 minutes then stopped. Lol who knows... my car just had very bad luck.
03-22-2009, 06:55 PM
#12
Senior Member
SL Member
Join Date: Mar 2005
Location: Plano, TX
Posts: 627
I had the same exact problem. The smoke would be there one minute and then it would be gone the next. I fixed the problem by adding an oil restrictor to the feed line. I came to this conclusion after reading a part of Corky Bell's Maximum Boost
Another thing I would check for is if oil is in your intercooler piping. I would check this first because this fix is much cheaper then replacing piston rings.
Originally Posted by Corky Bell's [u
Maximum Boost[/u]] Too much oil pressure can create problems with turbos. It is even possible to force oil past oil seals that are in perfect condition if oil pressures exceeds 65 to 70 psi at the turbo. If a particular engine creates more oil pressure than the seals can handle, it may be necessary to install a restrictor or bypass system to reduce pressure at the turbo.
Problems of oil pressure overpowering the seal are evident in a frequent if not quite constant smoking problem....
Problems of oil pressure overpowering the seal are evident in a frequent if not quite constant smoking problem....
03-23-2009, 12:59 AM
#13
Senior Member
SL Member
Thread Starter
Join Date: Dec 2008
Location: SW FL
Posts: 112
Originally Posted by equinox2355
Originally Posted by HEYitzMEEE
^ Based on that info, piston rings!
Rings should be smoking all the time, and it wouldn't just stop like that, but it still could be rings.
ALSO, right now my car is running rich and has been running rich before the blue smoke appeared. does running wayy too rich have anything to do with blue temporary smoke? My friend says that i was running too rich when i hit it and blue smoke appeared. And if it doesnt smoke anymore then i'm fine.
I have been driving it for about 300 miles already and havent seen ANY blue smoke or any kind of smoke from my exhaust. Well just a small puff of black smoke when i start the car.
03-23-2009, 01:08 AM
#14
Senior Member
SL Member
Thread Starter
Join Date: Dec 2008
Location: SW FL
Posts: 112
well, the car doesnt smoke at all anymore. even when i do minimal boost. Idles fine with no smoke, drives normal with no smoke, no unusual noises from the turbo. No smoke from the engine bay area either. IF i did blow something in the engine, wouldnt it still be smoking constantly?
ALSO, right now my car is running rich and has been running rich before the blue smoke appeared. does running wayy too rich have anything to do with blue temporary smoke? My friend says that i was running too rich when i hit it and blue smoke appeared. And if it doesnt smoke anymore then i'm fine.
I have been driving it for about 300 miles already and havent seen ANY blue smoke or any kind of smoke from my exhaust. Well just a small puff of black smoke when i start the car.
ALSO, right now my car is running rich and has been running rich before the blue smoke appeared. does running wayy too rich have anything to do with blue temporary smoke? My friend says that i was running too rich when i hit it and blue smoke appeared. And if it doesnt smoke anymore then i'm fine.
I have been driving it for about 300 miles already and havent seen ANY blue smoke or any kind of smoke from my exhaust. Well just a small puff of black smoke when i start the car.
03-23-2009, 02:28 AM
#15
Banned
SL Member
Scion Evolution
Join Date: Jan 2006
Location: Fremont, CA
Posts: 3,346
Maybe you didn't see the right color. Gray / Black is rich. If it was a blueish smoke, that is oil. Could have been blow-by, or an issue with the seal on the turbo. Best to do a compression check and have someone look at the turbo.
03-23-2009, 02:38 AM
#16
Senior Member
SL Member
Thread Starter
Join Date: Dec 2008
Location: SW FL
Posts: 112
Originally Posted by equinox2355
Maybe you didn't see the right color. Gray / Black is rich. If it was a blueish smoke, that is oil. Could have been blow-by, or an issue with the seal on the turbo. Best to do a compression check and have someone look at the turbo.
it was deff. blue from what i saw along with 3 other people. If its the seals on the turbo, wouldnt it constantly be smoking?
03-23-2009, 06:25 AM
#17
Banned
SL Member
Scion Evolution
Join Date: Jan 2006
Location: Fremont, CA
Posts: 3,346
Originally Posted by turbo_tC4
Originally Posted by equinox2355
Maybe you didn't see the right color. Gray / Black is rich. If it was a blueish smoke, that is oil. Could have been blow-by, or an issue with the seal on the turbo. Best to do a compression check and have someone look at the turbo.
it was deff. blue from what i saw along with 3 other people. If its the seals on the turbo, wouldnt it constantly be smoking?
03-23-2009, 06:56 AM
#18
Member
Join Date: Feb 2009
Posts: 28
Tale my advice with a grain of salt, but it sounds like oil supply/return issues. If it's only starting under boost, then you're probably blowing oil by the turbo seals. Whether that's because the seals are bad, or just because you're supplying too much oil / not being able to move oil back to the pan fast enough, you'll need to turn a wrench or two to figure out.
03-23-2009, 01:26 PM
#19
Senior Member
SL Member
Thread Starter
Join Date: Dec 2008
Location: SW FL
Posts: 112
Originally Posted by equinox2355
Originally Posted by turbo_tC4
Originally Posted by equinox2355
Maybe you didn't see the right color. Gray / Black is rich. If it was a blueish smoke, that is oil. Could have been blow-by, or an issue with the seal on the turbo. Best to do a compression check and have someone look at the turbo.
it was deff. blue from what i saw along with 3 other people. If its the seals on the turbo, wouldnt it constantly be smoking?
If its my turbo, then wouldnt i see oil in the intercooler pipe, etc..etc..? also, no oil leaking through the downpipe area either... i was also boosting the other day, no smoke at all either.
03-23-2009, 01:29 PM
#20
Senior Member
SL Member
Thread Starter
Join Date: Dec 2008
Location: SW FL
Posts: 112
Originally Posted by ZacMan1987
Tale my advice with a grain of salt, but it sounds like oil supply/return issues. If it's only starting under boost, then you're probably blowing oil by the turbo seals. Whether that's because the seals are bad, or just because you're supplying too much oil / not being able to move oil back to the pan fast enough, you'll need to turn a wrench or two to figure out.
If its the oil line then it would of been smoking before this happened. The oil return line is trimmed so there's no knicks, got a brand new oil feed line from dezod too. I dont think its the turbo already, because there is only 800 miles on the turbo...