Car smokes blue after warming up

[RallyTechNZ]

Hi i have a 2000 v6 wrx ra and just wondering if anyone has any ideas why it smokes blue after warming up then rev abit and smoke comes out. Turn the car off turn it back on then rev and goes away. Anyone have any ideas?? Its a v7 sti block with all the v6 stuff bolted on to it plus a new turbo and front mount. Engine has only done 3500ks and oil is still on full... Hasnt had a proper tune so could it be to much fuel?? Cheers

[Rosssub]

Have the heads only done 3500km?

[RallyTechNZ]

I was told everything has been rebuilt (have receipts and talked to the guy who did it)

[boon]

Blue is oil.

Perhaps the turbo shaft seal is shagged and it's oozing into the downpipe, or it has something horribly bad wrong with the motor like cracked ring land.

Could be something in the head too, like leaking valve stem seals. But there's only so many ways that oil can get into a place where it can get burnt.

[RallyTechNZ]

 boon said:

Blue is oil.

Perhaps the turbo shaft seal is shagged and it's oozing into the downpipe, or it has something horribly bad wrong with the motor like cracked ring land.

Could be something in the head too, like leaking valve stem seals. But there's only so many ways that oil can get into a place where it can get burnt.

Hrmmm my warranty is just about out too. Only till November :-/ but why is it only doing it for max 5 minutes of the day?? i turn it off then back on after i warm it up. Gives one puff then nothing for the rest of the day

[scoob]

jump on the warranty and get them to muck around diagnosing it/fixing it!

[RallyTechNZ]

 scoob said:

jump on the warranty and get them to muck around diagnosing it/fixing it!

Yep!! ill have to go next week. Taking the car to masterton tomorrow. The annoying thing is the mechanics in aucks. Im in Rotorua but better then a huge bill

[RallyTechNZ]

Car is booked in. I guess better to get it done then not and have a big problem.

[boon]

I'm going with turbo seals, or blocked/kinked oil drain on turbo.

I've seen this before, when the car is left to sit the oil in the turbo oil feed oozes out of the turbine side of the core (because the turbo is on a slight backwards lean) and pools in the turbine housing and downpipe.

Then you start the car up, nothing happens for a little while then the exhaust gets hot enough to burn the oil, you get a bit of a puff of smoke, it burns the oil off, you continue on your way. It's probably slightly leaking oil all the time but it'll be an insignificant amount that is immediately burnt off when the exhaust is hot.

A small amount of oil makes a lot of smoke when it's soaked into a turbine housing.

[RallyTechNZ]

 boon said:

I'm going with turbo seals, or blocked/kinked oil drain on turbo.

I've seen this before, when the car is left to sit the oil in the turbo oil feed oozes out of the turbine side of the core (because the turbo is on a slight backwards lean) and pools in the turbine housing and downpipe.

Then you start the car up, nothing happens for a little while then the exhaust gets hot enough to burn the oil, you get a bit of a puff of smoke, it burns the oil off, you continue on your way. It's probably slightly leaking oil all the time but it'll be an insignificant amount that is immediately burnt off when the exhaust is hot.

A small amount of oil makes a lot of smoke when it's soaked into a turbine housing.

Thanks for that. Will check the oil drain tonight. I thought it would be something small like this but didnt want to ignore it just incase

[Guest]

Sounds a lot like leaking oil seal but if it is you will have bigger turbo issues. Takes a while to heat the oil in the turbine housing as boon said I have exp. Check intake pipe and see if you have any blowby as well.

[RallyTechNZ]

 evowrx said:

Sounds a lot like leaking oil seal but if it is you will have bigger turbo issues. Takes a while to heat the oil in the turbine housing as boon said I have exp. Check intake pipe and see if you have any blowby as well.

Ok will check tonight. Cant find any kinked hoses. Found a t joint ventilating to atmosphere. Anyone know what it is?? It leads to the sensore at the bottom