Vehicle & Technical > Discovery

Spectacular breakdown - trashed Turbo?

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jnoshea:
Hi guys,

Just spent 4 hours on the side of the A50 waiting to be recovered from a spectacular breakdown.  White smoke billowing out of the back, coolant spraying out of the front and the engine reving hard even though I'd turned the ingition off!

The AA guy and recovery guy both suspect that the Turbo has blown its seals, sucking oil into the engine under pressure which was being burnt even though I had cut the fuel intake.  The alternative diagnosis is a blown head gasket. I need some help and advice on this one people  :shock:

If it's the turbo, how easy is it to replace? What if it's the head gasket? Basically, what the heck am I going to do now? I don't mind doing the work myself if it's doable.

jnoshea:
Perhaps I should add that I plan to take the turbo off first thing to have a look at it and order a replacement new one if found to be the cause.  If this is not the best thing to do first, please let me know.  [-o<

muddyweb:
Personally, I'd take the head off anyway and replace the gasket.

I'd also check all the valve gear very carefully and change the timing belt.

An engine can go through an awful lot of stress when it does that, I'd want to see the pistons and valve gear before I started it again.

Xtremeteam:
from what youve said it could be the head gasket causing the water etc to blow out & the white smoke,

& it running on would be the turbo BUT i thought it shouda been blue if its the turbo due to it burning the oil

mine blew the HG last week when i was at college,it was blowing water out & billowing white smoke at tick over & light revs,got to my work at 4 & had the head on the bench by 5,didnt get finished till 8.30 though as it took ages to set the tappets

jnoshea:
Thanks Tim, is it a big job to take the head off.  Used to be a sinch on the Series II but the 300Tdi looks pretty complicated.

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