Hi everyone got blue smoke coming from my car. I think and hope its the turbo as was going to upgrade very soon anyway, these are the symptoms it has

~ cold start no smoke!
~ normal driving no smoke!
~ on boost no smoke!

But once warm if I stop at lights,junction etc starts to smoke within 30secs I did have the downpipe off recently and there was what I would say excessive play in the shaft.

Cheers harri

 

I'd be tempted to say piston rings?

 

I really hope not

 

turbo, if you raise revs slightly does it stop?

 

If I'm at a set of lights etc and it starts to smoke once I drive off will smoke for 10 secs then nothing!!!!

 

turbo would smoke constantly? does sound like rings or valves

 

How much blue smoke ? Is it smoking at the lights on tick over ?

 

smokes afair bit, yeah smokes on tick over once warm!! but drove 20 miles this morning left it to tick over for 10mins and didn't smoke at all!!

 

unfortunatly internet diagnosis can be a bit hit or miss as it could be many things.
but at least you get some advice on things to look for.

blue smoke is oil burning, so:

it could be the turbo oil seal
it could be worn piston rings
it could be valve stem seals
it could be a cracked block
it could be a cracked head
it could be a failed head gasket

i guess if you are changing the turbo, then start there and cross your fingers.

with valve stem seals it will usually smoke first thing when started as oil will leak past the seals into the cylinders overnight etc, so it will smoke when started until the oil has burnt off and usually be not too bad for the rest of the day

worn piston rings can smoke when under load as the crankcase will be pressurised allowing oil vapour to pass through into the cylinder

worn turbo oil seal can smoke again under load, but will be hard to see as your driving along, more noticeable when stopped like you say.