drove car with blown turbo

[Tankrizzo]

38911 said:

I'm curious as to how a "large piece of wheel fragment" managed to get all the way through the inlet tract, squeeze itself through a tiny gap of just a few millimetres between the inlet valve and the valve seat, get sucked into the combustion chamber, survive a compression stroke without smashing the piston crown and jamming the engine, them make it back out of the combustion chamber through another tiny gap between the exhaust valve and the exhaust valve seat, out of the cylinder port, down the exhaust manifold and out the back of the exhaust......

Um, probably because it came from the exhaust side of the turbo. I didn't think it was that hard to understand.

[Greg_D]

loggo said:

MrPetrolHead said:

TRIUMPHBULLET said:

Make sure the entire inlet tract is clean,do not leave oil anywhere,make sure intercooler is clear of oil before you start the engine.
If you don't you will have a runaway engine once it goes on boost.
Trust me if it happens you will st yourself.
You can stall the engine by stopping and letting the clutch out with the handbrake on IF the handbrake works well.

it was started today to move the car from a parking spot it stopped fine after so i guess the intercooler is fine?

Blow the handbrake. Stand on the footbrake. That'll stop the sucker.
Incidentally I passed a van with just this problem near Bromsgrove yesterday. Thick smoke for 150m. Everyone stood around waiting for the explosion !

i had a van outside my office running away from a turbo oil leak, creating the most impressive smokescreen i've ever seen - revving it's t**s off.
my years of being a car nerd coalesced into the single useful act of going outside, getting the panicky driver to pop the bonnet and me choking the air intake until it stalled. he seemed quite pleased, lol....

[Joe..]

Greg_D said:

i had a van outside my office running away from a turbo oil leak, creating the most impressive smokescreen i've ever seen - revving it's t**s off.
my years of being a car nerd coalesced into the single useful act of going outside, getting the panicky driver to pop the bonnet and me choking the air intake until it stalled. he seemed quite pleased, lol....

How did you choke the air intake? (genuine question btw... I didn't realise diesels would / could do this!)

[Krikkit]

Joe.. said:

Greg_D said:

i had a van outside my office running away from a turbo oil leak, creating the most impressive smokescreen i've ever seen - revving it's t**s off.
my years of being a car nerd coalesced into the single useful act of going outside, getting the panicky driver to pop the bonnet and me choking the air intake until it stalled. he seemed quite pleased, lol....

How did you choke the air intake? (genuine question btw... I didn't realise diesels would / could do this!)

Shove a rag/bit of cardboard or whatever falls to hand over it.

[Limpet]

Yep, bit of rag, or a CO2 fire extinguisher works well if you have one to hand.

Takes a lot of guts to put yourself near or over a red hot engine revving way beyond its designed parameters that's consuming its own oil though.

[grumpy52]

Take it to a turbo specialist , half of what has been said on here is utter tosh .
You won't know the damage until it's been taken apart and examined .
The damage will rely on what part of the turbo failed , it could be as simple as new bearings and a clean and fresh oil and filters . It could also be a lot more , including new parts all through , cat , intercooler , turbo , etc etc .
The oil dripping could well be due to a failed bearing .

[Tony1963]

I would certainly recommend the OP has a new oil feed pipe fitted too. Older turbos can fail because the oil feed pipe has become restricted with carbon build up. If it's not replaced, say bye bye to a brand new 'charger.

[Greg_D]

Joe.. said:

Greg_D said:

i had a van outside my office running away from a turbo oil leak, creating the most impressive smokescreen i've ever seen - revving it's t**s off.
my years of being a car nerd coalesced into the single useful act of going outside, getting the panicky driver to pop the bonnet and me choking the air intake until it stalled. he seemed quite pleased, lol....

How did you choke the air intake? (genuine question btw... I didn't realise diesels would / could do this!)

on the van in question, it was pretty easy, it had a 'snorkel' type arrangement at the top of the engine, i just covered it with the palm of my hand (the negative pressure wasn't that much to be honest, not even uncomfortable...)

it took several seconds for the revs to come down (and yes, i was questioning the wisdom of my actions stood over the engine revving mike a mad thing) then as the effects of the lack of oxygen kicked in, it came down quite quickly, but took about 10 further seconds to actually die as residual bits of oxygen were being drawn into the engine from the random leaks the intake system evidently had, lol....

[MrPetrolHead]

the car is a 2009 vauxhall astra 1.7cdti my turbo will be arriving tomorrow and the car will be towed to my mechanic hopefully its not damaged a lot and i will tell him to check the intercooler egr and exhaust system etc... for oil