Hi

Help is my turbo on the way out!!! T34 not that old. Bought a year ago and its been lying around in the garage only fitted a few months ago on my old engine. Oil consumption was out weighing fuel so thought it was time to put a fresh unit in.

I have just had a new engine built for my car and fitted and it was running all fine.

Now when i start it after 30 or 40 seconds it wafts out some blue smoke then clears. If you rev it up alot then leave for a few secs it will do it again. No smoke on full boost and general driving apart from if you pull up in traffic sitting for a while then pull away. Pulled the filter off and checked for play tiny little bit and I mean tiny noticed on the shaft around the blades a film of oil very noticeable can wipe it off with your finger. Engine doesnt appear to be using oil none used in the last 200 miles anyway.

The only other thing i thought of was valve stem seals but i thought that normally smokes straight away.

If just the seals on the turbo is this a quick refurb job or expensive am i best off just buying a new unit!!!!

Thanks

Ian

 

Is it a standard engine? Has it been run in yet? what oil are you using? when was the oil last changed?

Try taking off your intercooler to throttle body boost pipe, and check for oil in the throttle body housing, push throttle lever to check behind flap.
If oil in there then it could possibley your turbo.

Say you left it overnight and then started it in morning, do you get a puff of blue smoke straight away and then it clears? thats normally a sign of valves stem seals. Were these not changed in the rebuild?

When mine smoked it was a comination of the turbo and my bores had glazed.
It didnt smoke on full boost but on the over-run and then stopping at traffic lights, i would leave a smog trail behind me then it would clear.

 

hee thats what mine looked like

 

that looks like a turbo gone too me mate

 

When i rebuilt the engine and took the head off it wasnt that great so got a refurbed one perfect no alloy rot like the other one but new valves, valves guides and valve stem seals but it had been sitting around in a mates workshop for a year and i know the works done got the receipts for the work. Would the valve stem seals dryed out in the year it hadnt been fitted. Its a fairly new turbo again bought off my mate sitting around a year and rebuilt by mountune and done less than 400 miles Is it common to have a problem of a re built unit as my mate had one blow on him 2000 miles after a rebuild.

Have run in for 300 miles used part synthetic oil due to change soon with millers racing oil.

When started from cold puffs a bit of smoke out after 30/40 seconds then clears.

Cheers

Ian

 

did you prime the turbo with oil before you started the car, ie spark leads off and turn the engine over for 30 seconds to pupm oil through the system, then start and leave on tick over???

if you did not then the turbo will have spun at quite a rate dry as a bone and could have caused some damage to the bearing???

 

Yes did that when i fitted the turbo and again when i fitted again after the rebuild. When i bought the turbo it had few used for a few hours when a car was built and put on a rolling road for a test then went t4 so sold to me. you never know if they run the oil through but being mountune you would have thought so.

Cheers

Ian

 

when the head was put on your engine, did you lube up the valve stem seals. Its possible one or a few of them were completely dry and as the valve has moved up and down its caught and deformed the stem seal and its now leaking. My advice would be to change the oil. check your turbo seals are ok, look at spark plugs to see if they are oily,

And go from there.