How does a stock turbo usually fail?

[brods]

Does it normally have any warning signs?

Does it seize the bearings and stop spinning or blow the compressor wheel apart or what?

Does it usually take out other parts when it goes?

What is involved with replacing a bad turbo, like flushing the intercooler etc?



I'm trying to do a risk assessment for deciding on what to do to cool the turbo at shutdown.

 

[Tomeygun]

Does it normally have any warning signs?

Does it seize the bearings and stop spinning or blow the compressor wheel apart or what?

Does it usually take out other parts when it goes?

What is involved with replacing a bad turbo, like flushing the intercooler etc?



I'm trying to do a risk assessment for deciding on what to do to cool the turbo at shutdown.

Most 3rd gen turbo failures I have seen have been from over speeding due to too much fuel,etc

As well huffing or "barking" the stocker is a quick way to send it to turbo-heaven

I let mine cool to 300 (pre-turbo) before I shutoff and that takes about 30 seconds.



It depends upon how the failure is if it takes out other parts... Input shaft is not too big. Big if the wheel makes alot on contact with the compressor housing wall, that can send metal into to the intercooler and engine, big no-no