White Smoke Question

[rinmak]

Hi Guys,

Just replaced a turbo on a friends 25 as the turbo it came with was shafted. The turbo he got had only 60,000km on it and didnt have a worrying amount of shaft play in it (that said, there was the slightest amount). Anyway cars running really nice pulls well through all gears but when you really give it to the car you will get some white smoke coming out of the exhaust which smells like oil. Also after giving it, when you let off the smoke really starts coming out but it clears up pretty quickly and then its ok till the next time you boot it.

Now im not sure if its doing it all the time and I just cant see it when im not giving it but im just after some opinions really.

Anything that could cause a leak of oil/coolant (my money on oil) when the car is on boost only?

Any advice appreciated, cheers

Edited April 2, 2008 by rinmak

[green 33]

Sounds like turbo oil seal

usually after a decent drive or bootfull you will get a plume of white smoke when revs drop back down, you can check by when the car is at idle give a full throttle stab on the accelerator and after a second or 2 should get a puff of smoke out the exhaust.

good luck, hope it's not, on the positive though if it is a standard turbo the rebuild cost isnt too bad

[rinmak]

Thanks mate, been doing some more testing with this.

Basically, it only happens AFTER you rev the car out about (5-6k RPM). When you let off, a cloud of white smoke comes out the back then it goes back to normal.

A friend has suggested it could be a problem with a breather in the cam covers. Its running a standard breather setup with standard hoses but the hoses are really old and crunchy. Looks like one of them has a valve/filter in it that I guess could be blocked (the small one that goes from the ex cam cover to the intake pipe)

Any opinions/comments would be great cheers

Edited April 2, 2008 by rinmak

[rinmak]

Still doing this guys...any ideas?

Edited April 2, 2008 by rinmak

[eddieeeee-ro]

it'll be a seal for sure, my mate had the same problem with the white smoke, the turbo is being rebuilt by gcg now

[DjeMz]

white smoke could also mean too much oil...

check ur dipstick

[On Edge]

interesting, a friend of mine has this problem, what is the turbo seal?

[TiTAN]

the oil seals in the turbo to stop the oil going into the compressor/exhaust housing

[hypergear]

check your oil drain. make sure its not blocked with silicon (if you used it) and not pipe's not kinked.