Bought a VRS estate with a blown Turbo.

Removed the Turbo at the end of November and sure enough the turbo was knackered.

Bought a used turbo from a briskoda member supposedly ok.

Finally fitted the turbo over the last week, primed with oil, replaced oil, oil fiter, antifreeze, all new gaskets, washers nuts etc.

Started the engine, left on tickover to ensure oil circulated and water reached correct temp.

Took it for a steady test drive, slowly built up the speed, reached about 2500 revs and suddenly a masssive cloud of smoke out of the exhaust. I was maybe only a 1/4 mile from home so i turned around and came back, engine sounded fine no funny noises.

what do we think, another blown Turbo?

Not happy to say the least :(

Theres a possibility there was some oil in the cat from when the original turbo failed,is it still smoking or did it just happen the once?

hard to tell

could have been several things

oil from the last time it failed burning off in the exhaust

the replacement turbo you bought could be duff

or new turbo was fine but an oil starvation issue (perhaps blocked pickup which maybe caused first one to fail) has not been solved

I removed and replaced the oil feed and drain pipes so i don't think it could be oil starvation.

I didn't want to run the engine to long incase of damage but on the way home smoke was still pouring out of the exhaust and when i pulled up onto the driveway, with engine still running I could see oil residue in the tailpipe.

if it is oil in the cat how are you supposed to get rid of it?

If it is oil in the cat,basically just to keep running it until it burns off,could still be oil starvation even if you have replaced oil feed and return pipes,oil pump pick up pipe has a habit of getting choked causing low oil pressure,an easy fix.

If it is oil in the cat,basically just to keep running it until it burns off,could still be oil starvation even if you have replaced oil feed and return pipes,oil pump pick up pipe has a habit of getting choked causing low oil pressure,an easy fix.

I have receipts for new oil pick up pipe that was fitted about 4000 miles ago,

Do you mean drive the car to burn the oil off, if so the amount of smoke that was coming out could be dangerous to other road users i think.

Could the cat be removed and flushed with something?

Edited 8 January, 201214 yr by nothills

How did the orignal one 'blow'?

If the smokes that bad probably wouldn't run it out on the road,just keep the revs about 3000 for a while,should see it getting better,if not maybye the turbo u have fitted is knackered,have u took the hoses off the intercooler to see if that's full of oil?

How did the orignal one 'blow'?

Spoke to the previous owner and he said he was driving down the motorway at about 70 and all of a sudden smoke came out of the back.

When I removed the original turbo I thought it may just need new seals etc, but on closer inspection i could see the turbine blades had been worn, not majorly but i didn't want to risk rebuilding it using the old rotor, There was also about 5-10mm in/out play/movement, no side to side movement.

If the smokes that bad probably wouldn't run it out on the road,just keep the revs about 3000 for a while,should see it getting better,if not maybye the turbo u have fitted is knackered,have u took the hoses off the intercooler to see if that's full of oil?

I removed and cleaned the intercooler and pipes before fitting the replacement turbo, very little oil in them,

May have to do that again, a bit of a 'ball ache'

Is it using oil since it started smoking?

If not then as above it will be oil left in the exhaust system from the last turbo (i take it the oil seals went on the last turbo).

I would expect oil in the intercooler to generally come from the EGR / crank case breather system (at least on the diesels). Any oil in the exhaust is more likely to come from the seals leaking.

Is it using oil since it started smoking?

If not then as above it will be oil left in the exhaust system from the last turbo (i take it the oil seals went on the last turbo).

I've just been out and checked the oil level and it hasn't moved, but remember I only drove about a mile or 2.

I might have to take it down the road tonight into the countryside where the smoke won't cause any problems to anybody !

Actually the more I think about what you said the more I think it could be oil in the cat because when I had a blown turbo on my peug 406 it drained the oil in nothing flat, and after fitting a replacemnt turbo it smoked like mad for about 1/2 an hour running up and down the A50.

Also when i bought and collected the VRS i noticed the oil level was very low so I had to top it up to get me home.

Edited 8 January, 201214 yr by nothills

My dad had a blown turbo on a mondeo and had the same issue when all fixed. They said it was oil in the exhaust and is very hard to get rid of so said you may never get rid of it completely unless you get a new exhaust. Never found out as He sold it on after that.

Just been out again in the octy, up and down a quite country road, kept blasting it, smoke, smoke, less smoke, less smoke, even less smoke and eventually no smoke.......

God they are quick aren't they?

First time i've driven it hard.

Thanks everyone for your help and advice, obviously the cat was flooded with oil when the last Turbo blew.

I'm a very happy bunny now already for its MOT at the end of the month and a bit of fettling

Good stuff! Good on you for getting it back on the road with a new turbo too.

Might find it needs a new cat for the MOT I guess that oil won't have done it much good, it might not get through on the emissions

Good stuff! Good on you for getting it back on the road with a new turbo too.

Might find it needs a new cat for the MOT I guess that oil won't have done it much good, it might not get through on the emissions

I'll be putting some fuel additive/cleaner & cat clean in the petrol tank before it goes for its MOT, that normally does the Trick.

I'll be putting some fuel additive/cleaner & cat clean in the petrol tank before it goes for its MOT, that normally does the Trick.

was just gonna say try some cataclean before you go that route - "car mechanic" magazine highly recommends it

Stick the catclean in some length of time before the MOT though, you hardly want the cat dumping its oily load into the garages' emissions equipment!