Turbo charge killed our engine

If you don’t clean the motor oil out of the CAC and install a new turbo the minute you take off with truck and the new turbo reaches boost it shoves the pressurized motor oil in to the engine and the engine starts running on the motor oil.
You can turn the key off and the engine will continue to run on the pressurized motor oil reving out of control until the engine self destructs.
The engine can actually reach rpm north of 4,000 rpm and I guess we know what can happen to a big diesel spinning at that rpm.

 

Very unlike in modern engines. But possible is guess. How much oil is going to get trapped in a CAC?

 

Did OP even say what engine's in this truck? I know they said Detroit but is it a 60 Series or a DD13/15/16? No way a 60 Series would be that expensive to rebuild but a DD Series probably would be.

 

Totally possible. A fellow mechanic had that happen. Engine started picking up oil trapped in the CAC and she ran away to destruction.

 

Why do you say very unlikely in a modern engine?
When a turbo fails motor oil can be pumped in to the CAC at 50lbs of engine oil pressure.
Doesn’t take long to put a gallon or more engine oil in to the cooler.
Now if a big diesel can get 6.5 miles to the gallon normally think how long an engine can run on an unmetered gallon or more of fuel with all the air it needs to burn it.
That’s a recipe for disaster.
Saw this happen before in a cat shop a couple years ago.
it totally blew the motor to to pieces leaving a window in the block with a rod hanging out of it.
It also completely covered the trucks parked on each side of it with motor oil coming out of the stacks.
It was really quite spectacular.

 

What does CAC stand for. Thanks

 

Charge air cooler.
Some call it an air to air cooler.

 

You have a lot to learn

 

It is a cooling radiator for your combustion air. When your air passes thru the turbo, the air heats up.

To get more air in your combustion chamber it gets cooled by the CAC. . Cooler temps the more dense the air is. Cooler temperature allows more oxygen molecules by volume.

 

Hey guys, the OP isn't clear what type of turbo failure this is. It could be a simple seized bearing failure or loss of a seal or a couple other things. I wonder if he kept the old turbo (that is what I require) or did he let the mechanic take it?

I would not consider the mechanic at fault for the problem for a lot of reasons, one is this is a road side repair, not a shop repair as it should have been. I would have had the truck and trailer towed to the shop to get it done right, so if the OP just said "replace the turbo so we can get going" well the mechanic did his job as told to do.