Bltzkrg

The car has been smoking a fair amount since I've had it. Chips were installed and I had a blast for three days. Now the car is blowing smoke out the back. I had to change the plugs yesterday, it was running on three cylanders. The back plug was just about dripping with oil and was not firing at all prob.
Am I looking at Turbo being gone, valve seals, and or rings? The cars about to get a compression test in a sec and then the heads gonna come off, any insight? Thanks

Tms951

sounds like turbo, but it is odd that there would be more oil in one cyl. than the others. #4 is where the HG blows the most often.

bscpanther

my rings were shot 45-55 compression across all 4 and I never got smoke out the tail pipe so that's odd in my case I suppose. Others will chime in here but I think it would have to be a ring if it's only one plug oiled over. I just don't know if I'd waste my time taking the head off when you'll have to pull the motor assuming this is the case.

Bltzkrg

see the thing is the oil in the hard pipes, including the intake side confirm my suspision of the turbo going bad, I can see a large amount of build up on both sides of the housings. The bottom end was rebuilt on the car so thats the only reason why Im not thinking mainly of the rings, not that its not possible, its just that other things are more present. Even if it is the turbo I will still do the head gasket, APR head studs and double check the head. It will give me time to take the valve cover and make it pretty! Thanks for the quick replys and I'll try to keep you all updated on progress.

Spidey944

I am only a helf hour from you if you need any assistance.

david fracolli

I have the same problem but mine is in the number 1 and 2 cylinder. My number 1 cylinder is so bad that if I let the car sit more than a couple of days the plug fouls do to all of the oil.
The only thing I can think that it might be is the rings as the head was rebuilt less than 2,000 miles ago. The wierd thing though is that I did a compression check and the number 1 cylinder was 110, 2 was 120 and 3 and 4 were 135.
I would think that the compression would be much lower with the amount of oil I am going through.

5speed300

The bottom end was not rebuilt. The ring are the original 180,000 mile ones. Only thing changed in the bottom end was the rod bearings. I wouldn't rule out rings completely. They might not be the main issue, but they surely are not in new condition.

reno808

it could be the AOS seals

Bltzkrg

Thanks for the correction Gray I always seem to get ahead of myself,

SpideySlave944 thanks I'm quite the newb when it comes to the turbo's, our shop is having a big Dyno day this Saturday. Free food and on $50 for 3 pulls with wide band. If my junk is running correctly I might throw it on there. You should come over to hang out. www.BREmotorsports.com

hansman

Probably blew the head gasket & are unable to fire the cylinder in question.
When I blew my hg the thing sounded like it had a nice v8 with a cam in it!
What color is the smoke?
White h/g, black turbo or blow by from faulty cranckase seals etc

Bltzkrg

its deff all black, the car runs basically perfect with the exception of me disappearing in a cloud of black smoke. I'm surprised no one has asked if its diesel.

hansman

You probably torched the h/g.
Take a flashlite down the plug hole & check for antifreeze.
With this ruled out it has got to be seals either in the crankase or turbo.

Bltzkrg

thanks for all the help, hopefully I'll be back boosting soon enough.

LFA951

I blow smoke thru my tailpipe too, it could be the rings or the minimal scoring on the cylinder walls, either way, I'm not worried about it....

5speed300

Dont forget to mention how all this occurred, that might help narrow it down. Overboosted to around 25psi on max951 chips that are tuned for 16-18.