just picked up my new metro turbo engine mini
Turbo Mini Forums

its smoking when idle and smoking when revved up the smoke is white i think it might be the rings have gone but would like your views

oh and its just had a new mini speed turbo cylinder head fitted.

Do a compression test, first cold, then hot, then hot with a little bit of oil in through the spark plug holes - this will give you a good idea if the rings/bores are worn.

A leakdown test would be even better if you can borrow the equipment.

On a turbo motor though, the smoke could easily be the shaft seal(s) in the turbo itself. Pull the inlet duct off the compressor end and see if you can feel any play (radial or axial) on the shaft. If there is noticeable play it means the bearings are worn wich means there is a very good chance the seals have gone too.

Schrödinger's cat - so which one am I ???

thank you i am borrowing equipement monday for a compression test i certainly will try and get a leakdown test also

and later on when the cars out in the garden i will try what you have said
thank you

right done the compression test what i done was

remove main lead from coil, remove lead and spark plug 1 and fit tester and try start the engine it gets to a max of about 155 on all cylinders, is this normal? my 998 gets up to a little less.

each cylinder is the same but the 3rd one is slightly slower on the turbo engine

today i checked the pipe from carb side to front of carb and that is fine what else could it be?

Rings or Turbo choose your poison each will cost unless you are handy with the tools.

Own the day

well i am going to take the exhaust manifold off and run it without going through the turbo and see if there is any white smoke this a good idea?

Sounds like it will be a loud experiment, excuse the pun..

Have you got a spare N/A manifold lying about?

I wouldn't advise running the engine in the car with no manifold at all, you may see flames instead of white smoke.........