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White Smoke / Car Is Smoking White [Merged 7-9]

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Apeximprt2nr

15+ Year Contributor
620
5
Apr 20, 2005
Northern, New Jersey
Alright guys, well I just finished my 14B install in my 95 GSX. All is well besides some minor oil leaks on the return line and the SS feed line at the filter housing. There was also a VERY minor coolant leak from the front banjo bolt on the turbo. I tightened it a tad and I think i went away. Now the turbo is spooling really late because I think there may be a leak before the turbo.
Now on to the problems.

1. The turbo does not smoke at all besides at WOT sometimes it blows out whiteish grey smoke. I'm trying to think of where it could be burning coolant. It never did this before the turbo install.

2. There was some white smoke the past 2 days at the manifold. I'm thinking its the shitload of PB Blaster that I sprayed all over the car but I'm not sure.

3. There's a smell coming from my engine that I can smell if I pop my hood and it becomes more noticeable when I'm driving and really get on it. It smells like burning plastic sort of, with a mix of burning rubber. The lower heat shield is not on the car because it's a pain to get on and I haven't put it back on because I haven't had time. Nothing is touching anything hot so I 'm confused...The only possible thing is maybe I pout on a new 4 ply exhaust mani. gasket as well as antiseize on most of the bolts and the turbo-mani. bolts.

Any help? Thanks.
 
hey guys so last night after i had my car worked on it pretty much died on me on the interstate...so while doing about 80mph i started smelling some burning and there was white smoke coming from the exhaust...i let off the gas a bit and it stopped...then it got worse as i kept going a bit and then it was just a huge cloud of smoke followed by the car slowly dying on me...pulled over and the engine bay was smoking terribly and some oil leakage was under the car....car ran great prior to modding it was bone stock...mods i had installed were

14b turbo
tial wastegate with 02 housing
punishment front mount with piping
forge recirculated bov
punishment downpipe
srs catback exhaust
stock fuel pump rewire
hallman manual boost controller
boost gauge and a/f wideband gauge

the guy told me there was a little exhaust leakage and my clutch was slipping a bit...i was only running 9psi of boost so nothing crazy...if anyone can help i would greatly appreciate it...first dsm issue for me smh
 
found out my coolant line snapped...hence the smoke and i had some minor oil leakage...gonna replace that and go from there...there was no noise or nothing to indicate the motor blew
 
Well im not new to the DSM scene, but the one thing im new to is catch can info. I see tons of people using them and i see tons of people not. So i bought a mishimoto sealed catch can and i installed it. 1 hose running from the Turbo intake pipe to the catch can, the other hose from the breather nipple on the VC to the catch can. I noticed after start up i noticed white smoke out of the exhaust. I also heard a hissing sound, but wasnt sure where it was coming from, but when i took the oil cap off it relieved alot of pressure and spit a little oil. My dsm never blew any smoke prior to the install. I also noticed smoke coming from the down pipe area and noticed oil on my o2housing. i jacked the car up and seen a little bit of oil seeping from in between the o2 housing and turbine housing and a drop of oil on the end of my dump tube. My 20g turbo has no shaft play and has less than 5000 miles on it. im clueless as to whats going on with my car now. I didn't have this problem until i put this catch can on... Is my PCV valve stuck causing excessive crankcase pressure? causing excessive blow by? i really hope its not my turbo seals cause it it was brand new last november. Possibly blew the spark plug port/valve cover seals? I think ill start with a boost leak test and a compression test tomorrow. Any insight on this will be appreciated... thanks :dsm:

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here is a picture of the o2 housing, its wet from oil..
 
Are you using a stock maf? Where the return on the intake comes after the maf. A catch can replaces a pcv in a way. You run a hose from the breather line on the valve cover to the catch can, and then from the catch can either to where the pcv valve is or to the intake mani. The vacuum pulls the air out the breather, and "catches" the oil in the can before pulling the air back into the intake. Since you said it's a sealed catch can you would be running the catch can return line to the intake mani. You would use a catch can with a breather if you were running from the vc back to the vc
 
Are you using a stock maf? Where the return on the intake comes after the maf. A catch can replaces a pcv in a way. You run a hose from the breather line on the valve cover to the catch can, and then from the catch can either to where the pcv valve is or to the intake mani. The vacuum pulls the air out the breather, and "catches" the oil in the can before pulling the air back into the intake. Since you said it's a sealed catch can you would be running the catch can return line to the intake mani. You would use a catch can with a breather if you were running from the vc back to the vc


Read what you wrote and think about it one more time. So let's say he has a sealed catch can and he runs a line from the VC to the catch can then from the catch can to the intake manifold, sure this will work great when the car is in vacuum, but think about what it will do when the car is in boost.

OP, as nice as they look under the hood of a car in my opinion catch cans are in a way a waste of money. The thing with catch cans is that eventually they will fill up with water from condensation in the crank case, hence the word "catch can" If you run it for a while and forget to drain the water, eventually it will over fill and having it hooked up like you do would cause the engine to suck up that water through the intake pipe and that's how you can get white smoke.

Personally I don't use a catch can. I have two 5/8" nipples welder to the VC. Off each one I have a 5/8" hose that's about 2.5 feet long that runs to the bottom of the car with a small filter on the end of it. Car makes a lot of power with out any issues.

What you should do is take the PCV valve out of the VC and replace it with a nipple that you can put a hose on and run it to your catch can or a small filter. The nipple in the intake manifold you can either cap off or use for something like your BOV. PCV valve allows pressure to escape from the crank case only when the car is in vacuum, when the car is in boost PCV valve is close and crank case pressure can only escape through the other nipple in the VC. Doing this will give you 2 breather ports off your VC. If you have 3 ports on your catch can then run a hose from each nipple in the VC to 2 nipples on the catch can. From the 3rd nipple run a hose to your intake pipe. Doing this still leaves you with a duty to empty your catch can once in a while so you need to keep up on that. If your catch can has only 2 nipples then run the other breather off your VC with a hose to a small filter.

Had you not bought the catch can already, the easiest and the cheapest option would have been to run both of those hoses to the bottom of your car with a $10 filter on the end of each one. Sure you might see few drops of water out of the filters in the colder weather but its pretty much a fail safe situation. Filters never get plugged up because the crank case pressure blows them out. I've checked my filters few times after several thousands of miles and even though they may look a little dirty, they were never plugged up.

On the stock set up the engine gets a little bit if air in vacuum conditions from the VC through the PCV valve. If you do end up taking out your PCV valve and capping off the nipple on the intake manifold then you might need to adjust your idle a little bit by backing out the biss screw in the throttle body.
 
Are you using a stock maf? Where the return on the intake comes after the maf. A catch can replaces a pcv in a way. You run a hose from the breather line on the valve cover to the catch can, and then from the catch can either to where the pcv valve is or to the intake mani. The vacuum pulls the air out the breather, and "catches" the oil in the can before pulling the air back into the intake. Since you said it's a sealed catch can you would be running the catch can return line to the intake mani. You would use a catch can with a breather if you were running from the vc back to the vc

The catch can shouldn't be connected to the intake manifold without a PCV/check valve. It's also best to use sealed cans for the entire PCV system. I'd suggest you read this: http://www.dsmtuners.com/forums/articles-engine-fuel/366890-4g63t-pcv-system.html

Well im not new to the DSM scene, but the one thing im new to is catch can info. I see tons of people using them and i see tons of people not. So i bought a mishimoto sealed catch can and i installed it. 1 hose running from the Turbo intake pipe to the catch can, the other hose from the breather nipple on the VC to the catch can. I noticed after start up i noticed white smoke out of the exhaust. I also heard a hissing sound, but wasnt sure where it was coming from, but when i took the oil cap off it relieved alot of pressure and spit a little oil.

Why not just remove the catch can, reinstall the old valve cover line, and see if that helps the problem?

But again, I suggest your read this thread: http://www.dsmtuners.com/forums/articles-engine-fuel/366890-4g63t-pcv-system.html
 
the mishimoto catch can i got was free just a little FYI my buddys dsm that i have at my house is being baby sat by my while he is over seas, we are military, he buys me parts occasionally for being a good friend. he bought us both catch cans so im not complaining about free. It was only 100 and some change from extreme psi. but anyways the compression test was 180 across the board and blt was good except for my stupid biss screw. im only seeing oil from the o2 housing im letting the oil burn off right now and then im gonna but everything back to stock crank case wise and see what happens. Its not smoking from the exhaust no more tho as is via turbo intake to catch can then catch can to breather nipple. so i should take it off the turbo intake and cap the intake off and put a filter at the end of the hose?

and as for the other guy who said my can or lines are cloggeed, LOL its a brand new can and the hoses that came with it are 5/8 hose and clear.. no obstructions clogging the hoses
 
Sorry about my terrible explanation, I tried to explain the process of replacing the pcv valve with a nipple or -an and run both vc lines to a breather/catch and messed up jumbling both ways together. I was at work and typing fast on my phone haha
 
If I had gotten that catch can for free I would put steel wool in it (something to catch the contaminants) and run a single line to it from the side port of the valve cover. Just leave your stock PCV fitting in place but between the valve cover and intake manifold add this check valve. 3/8" CV

On the second port on the catch can run a line to the intake that way you're applying some sort of vacuum on the crankcase. Just watch the site glass on the side of it to make sure it isn't full, the last thing you want is that blow-by making it into your intake track.
Personally I don't use a catch can. I have two 5/8" nipples welder to the VC. Off each one I have a 5/8" hose that's about 2.5 feet long that runs to the bottom of the car with a small filter on the end of it. Car makes a lot of power with out any issues.
Since that makes a lot of sense.

Go ahead and dump all the blow-by coming out of the motor under your car, whether you're going down the track or down the street, and share it with everyone because you're too lazy to empty a can once a month. :applause:

The goal of any catch can setup is to eliminate any POSITIVE crankcase pressure. Running two 5/8" hoses that are 2.5' long with a restrictive filter dangling off of them (restrictive because you're too lazy to empty a CC so why would you clean off the oil and dirt on them) is not only a poor evac setup but it's also dangerous for reasons I shouldn't even have to explain.

A trip to the track when temps were in the 60's I could FILL my 1qt RRE catch can after 3 passes. Imagine where all that oily blow-by would be if I had the same setup. All over the track, possibly on my wheels or the car that's making a pass after me. :toobad:

:dsm:
 
Had a 20g turbo on the car (1g fwd tsi talon) running about 10lbs with everything else completely stock. When you dog the car then let off and drive normal it let's out thick white smoke. While the turbo is spinning up you can see blue smoke in the rear view mirror. I drive normal no smoke comes out. It only happens immediately after dogging the car or going up a real steep hill. I figured the 20g turbo had bad seals. I replaced it with a rebuilt 14b turbo and its doing the same thing. Any ideals what's wrong? Head gasket is only 3 weeks old. (Its Not the cometic or 4 layer one just the oem one from advance). This talon is just my daily. bone stock almost with a 14b. It gets 30mpgs but it smokes like a frieght train. I'm pretty sure its blowing out because me and some friends took a 400 mile road trip and all their cars were covered in oil from following behind me.:sneaky:
 
Since that makes a lot of sense.

Go ahead and dump all the blow-by coming out of the motor under your car, whether you're going down the track or down the street, and share it with everyone because you're too lazy to empty a can once a month. :applause:

The goal of any catch can setup is to eliminate any POSITIVE crankcase pressure. Running two 5/8" hoses that are 2.5' long with a restrictive filter dangling off of them (restrictive because you're too lazy to empty a CC so why would you clean off the oil and dirt on them) is not only a poor evac setup but it's also dangerous for reasons I shouldn't even have to explain.

A trip to the track when temps were in the 60's I could FILL my 1qt RRE catch can after 3 passes. Imagine where all that oily blow-by would be if I had the same setup. All over the track, possibly on my wheels or the car that's making a pass after me. :toobad:

:dsm:

The stock ventilation system is designed not only to evacuate crank case pressure but to help control emissions. The stock PCV valve only works in vacuum but when the car is in boost its useless and closed so it only removes the crank case pressure from the blow by when the car is at idle or in cruise. The other port in the VC runs to the intake pipe which puts that blow by back in to the engine.
 
The stock ventilation system is designed not only to evacuate crank case pressure but to help control emotions.
Sweet, I need to hook my fiancee up to the stock ventilation system when she's PMS'ing. :p

The other port in the VC runs to the intake pipe which puts that blow by back in to the engine.
But more importantly it puts a vacuum on the crankcase so there's no positive pressure there. There's always vacuum applied to the intake track before the turbo, which is why you run a line from the sealed catch can to it.

:dsm:
 
If it is happening generally at load, and if you are saying your buds had oil all over their vehicles after trailing you for some distance, it likely means (may mean) the rings on your pistons need to be replaced.

Do a compression test and see where you are at.

Best Regards,
Justin
 
i bought a mishimoto sealed catch can and i installed it.
You can't run a SEALED catch can- it must be vented or no vapor can escape. You're basically doing more harm than good.
 
Sweet, I need to hook my fiancee up to the stock ventilation system when she's PMS'ing. :p


But more importantly it puts a vacuum on the crankcase so there's no positive pressure there. There's always vacuum applied to the intake track before the turbo, which is why you run a line from the sealed catch can to it.

:dsm:

Yeah my bad, its the auto correct on my phone, would be nice though :) I went back to edit it and some how the rest of my post got deleted so I might repeat myself to those who read what I said before.

I had my ventilation set up on my car for few years now with 2 filters on the end of each hose. Car makes over 600 whp with out any excessive crank case pressure. I never get a dip stick blow out or oil pushed out of the seals, so I can say that it works very well.

Pressure will always escape from a high pressure side to a low pressure side so any pressure in the VC will escape in to the atmosphere (14.7psia) so to speak. Running it in to the the intake pipe helps it a little because of the moving air inside the pipe creates a lower pressure point at the entry of the breather hose in to the pipe, sure I agree with that. What I don't agree with is that one 3/8" hose ran in to the intake pipe is better then two 5/8" hoses ran in to the atmosphere. Depending in your catch can location but by the time you run a hose from the VC to the catch can then from catch can to the intake pipe you still end up with few feet of hose, and all that is done through one 3/8" hose :)
 
Had you not bought the catch can already, the easiest and the cheapest option would have been to run both of those hoses to the bottom of your car with a $10 filter on the end of each one. Sure you might see few drops of water out of the filters in the colder weather but its pretty much a fail safe situation. Filters never get plugged up because the crank case pressure blows them out. I've checked my filters few times after several thousands of miles and even though they may look a little dirty, they were never plugged up.

That is a horrible suggestion.

Besides being against the rules for every sanctioned racing body there is (should that ever be an issue), it's also not all that great for the environment. And I'm sure you'll make lots of friends with other drivers that may be lucky enough to be traveling behind you while you are spitting oil and other crap out of your ghetto crankcase pressure relief system.

If you don't care about any of that ^, then consider this. Your crankcase will always be under some amount of positive pressure, until it builds enough to overcome the resistance of the hoses and filters.
 
That is a horrible suggestion.

Besides being against the rules for every sanctioned racing body there is (should that ever be an issue), it's also not all that great for the environment. And I'm sure you'll make lots of friends with other drivers that may be lucky enough to be traveling behind you while you are spitting oil and other crap out of your ghetto crankcase pressure relief system.

If you don't care about any of that ^, then consider this. Your crankcase will always be under some amount of positive pressure, until it builds enough to overcome the resistance of the hoses and filters.

Which is about 0.2 psi so its the least of my concern.

If you're so concerned about the environment you should put a stock cat back on your car as well as contact diesel engine manufacturers like Cat, Detroit and Cummins and tell them that they should run their crank case breather back in to the intake pipe instead of just a hose going to the bottom of the engine. I'm sure that a 15L Cat engine puts out a lot more blow by pulling 80,000 lb load on a daily basis then my little 2L 4 bangger.

I know that my ghetto crank case ventilation takes away from catch can manufacturers including yourself so I can understand your frustration :)

PS how do u get that "wiseman" logo next to my avatar ;)
 
Funny this is a debate, just this weekend while attending EFI university, I asked the PRO TUNER TEACHER about my crank case system, its two 5/8" hoses ran down to the bottom of the engine bay. The PRO told me "that's fine, I see this style of system all the time. Seems just fine to me"
 
I know that my ghetto crank case ventilation takes away from catch can manufacturers including yourself so I can understand your frustration :)

LOL

Seriously? You think that your post would frustrate me? Believe it or not, I've read several posts on the subject over the years that are even goofier than yours. Frankly, I could care less what you or anyone else does with their own car. But when someone suggests a blatantly wrong way of going about doing something to the other members of this forum, you can bet I will mention it.

FWIW - I build catch cans on the side; not as a career. And, I stay swamped with work due to the vast majority of people that are intelligent and like to do things the right way.

PS how do u get that "wiseman" logo next to my avatar ;)

The first step is to stop posting half-assed suggestions for "fixing" well-documented issues. ;)

Funny this is a debate

It's no debate at all. It's like everything else; you can do it right, or do it half-assed. There are people that say running the coolant overflow to a Gatorade bottle that is duck taped to the fan shroud is just fine, and others that say it's not. Some people will say you "dun need no stinkin' battery tie-down", and others will laugh at such stupidity.

This is no different.
 
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