bobthedog:
But you do drive a Freightliner, Rich…
Yeah , the engine will probably fall out in the road before the turbo pops. 
though I should carry a spare since they are easy enough to change provided there is no shrapnell 
.Would be better than waiting around in the middle of nowhere. 
Had a turbo go on a Landy, as said before the engine goes into warp drive. I was expecting the valves to come through the bonnet followed by the head, but managed to get it into gear and stall it.
Was talking to a mate who went to the SED, a brand new tracked 360’ digger was being demonstrated working at an angle of 45’ when the turbo went., a fitter who was close by tried to block the air intake to arrest the over reving, but something went clang and the engine clattered to a halt. There were some very red faces when the smoke finally cleared 
Sometimes I drive Freightliners and Kenworths (in oz) and you really have to leave her running when you stop for a good 5 minutes before turning the engine off, the newer kenworths have a turbo timer on them with auto shut off so you can start undoing your curtains etc straight away and she’ll knock off automatically
i had it happen to my sprinter about 2 months ago on the A14…I actually noticed a bit of smoke on the slip road from the a140 and the lack of power so i pulled over and it didnt seem to bad so i slowly kept going at 40mph to at least get home so i wasnt left at the side of the road waiting for a tow truck…I got as far as ipswich asda turning and it went bang clatter and lots of smoke and the engine light coming on so i switched off and coasted to the end of a layby…after getting towed home next day new turbo and intercooler.with a hole drilled in the exhaust silencer to drain the oil out
beattun:
Sometimes I drive Freightliners and Kenworths (in oz) and you really have to leave her running when you stop for a good 5 minutes before turning the engine off, the newer kenworths have a turbo timer on them with auto shut off so you can start undoing your curtains etc straight away and she’ll knock off automatically
This used to be the recommended practice for turbo engines,to give the turbo time to cool down and slow down,the theory being that if the engine is shut down immediately,the turbo will continue spinning with no oil supply leading to premature bearing failure.
I had a turbo oil seal go on a merc atego recovery truck a year ago, the engine didnt speed up as mentioned but tight ■■■ company made me drive it back along m25 hard shoulder beacons & lights blazing with smoke billowing out.
Next day turbo was removed & there were no blades left in it.
This is why i dont like scania ,or actually a certain irish scania dealer.Comin outa dublin one morn early,heard a pop,loads a smoke and no power.Turbo gone so,i ring 24hr assist leave no. and wait.Alot longer than promised i get a call from a guy.Asks where are you etc. ,then he tells me to drive it to him.It was like halloween on wheels,smoke for a mile literally.One new turbo later the same garage is tryin to get the oil outa the intercooler by takin the pipes of and replacin them with bin bags.At this point the pump lifts oil, combusts, rev needle gos south, (4000 rpm +) fills garage with white smoke before blowin new turbo and doin sreious engine damage.That truck was never the same after.Real shafty noise from engine and no power. 
I had one go on an old Renault Premium day cab. It was in the winter evening rush hour i heard a bang and smoke everywhere. But where the orange side lights where showing thru the smoke it looked like flames. It was handbrake on and run time
I rang police as i was in the A57 underpass in Manchester city centre. 30 mins later they hadnt turned up so i rang again and told them if they didnt come quck there would be a crash with everything behind me shooting around the truck. Anyway 10 seconds into the phone call i heard a bang and sure enough 2 cars had hit each other.
I stayed out the way
But where the orange side lights where showing thru the smoke it looked like flames. It was handbrake on and run time
Thats exactly what I did. I wasn’t hanging around for anybody. My boss said “will it start?”, I said “I don’t know, I’m about 100 yards away, I’ll ring you in an hour and tell you”
bestbooties:
This used to be the recommended practice for turbo engines,to give the turbo time to cool down and slow down,the theory being that if the engine is shut down immediately,the turbo will continue spinning with no oil supply leading to premature bearing failure.
On the Harvest run in the States we sometimes loaded the Combines onto Trucks for long Interstate moves and Deere John Recommended that we Duct Tape shut the rainflaps on the Vertical stacks.They had known instances where the air moving across the top of the pipe created a Venturi effect with enough Vacuum to cause the Turbo fans to spin and stuff the Bearings.