Smoke high end revs

[Spatula]

Hi all,

Recently had a problem where when I give it some beans in 2nd/3rd/4th, and go over say 4000rpm, then change up, I get a cloud of smoke coming from the back, until I lift off..
Any idea's what it could be?

Cheers

Edit: I should probably mention its a 1998 1.8T.

 

[vivalacoulter]

What colour is the smoke?

 

[S3quatt]

Are you saying you're changing up before lifting off?

Of do you mean you get the smoke as you lift off before changing up?

Is the smoke white or have a blue tinge?

I'm thinking broken or sticking piston rings, stem seals or turbo seals. Mainly blue smoke.

 

[Spatula]

I think it's black smoke. It only happens when I get high up into rev range then change gear, say pulling off slip road onto motorway. I'll be in 3rd @4000+ rpm, change gear and get a plume of black smoke. Then for the next few seconds there's a little more black smoke then it goes away.

 

[s3dave]

Sounds like its throwing fuel in with black smoke...

 

[Spatula]

What would cause excess fuel to be pumped through, or unburned fuel? Spark plug?
What would be the signs of a turbo going bad? Would this do that? (the turbo has no issues as far as i'm aware but a friend said it could be that).

 

[S3quatt]

What Dave said.
Unburned fuel. Possibly a leaking injector...

 

[Spatula]

On further inspection, the smoke is actually infact blue smoke.

 

[Sam_]

Oil. Potentially either rings, turbo seals, or your PCV system. Worth whipping the hose to the TB to see how oily it is.

 

[Spatula]

It's happened again. I got to about 4000r/pm, and then all of a sudden lost power and plumes of blue/white smoke everywhere.
Lifted up bonnet too and, from the back of the engine (where the turbo is situated) the same colour smoke was seeping out.

Anyone got any ideas?

 

[Alex C]

turbo seals.

turbo seals,

... plumes of blue/white smoke everywhere...
...and from the back of the engine (where the turbo is situated) ...

Anyone got any ideas?

....

 

[Spatula]

Lol, fair enough. Is it a hard job to get done? I guess it's a garage job at very least.
Is there any way to make sure that's the problem? like, compression tests etc.

Cheers,

 

[Alex C]

Not sure how to definitely confirm it, best off speaking to Dan ( beachbuggy), he'll know

a standard garage is likely to subcontract a job like that out to a specialist, which Dan is

 

[Spatula]

Okay cool. I've messaged him. I'm thinking if it IS a turbo issue, I might just replace with a KO3S.

Why is it a bad idea to buy one of the copies?