[oilburner]

pressure from a backfire with enough force to break the plastic duct.

 

[oilburner]

Silly newbie question - but can a diesel backfire?

Diesel said he heard a pop noise so instantly I though backfire but more I think about it I can`t come up with away it would especially with direct injection an compression ignition...................thanks for
making me think. that intake is bolted an clamped an doesn`t move, so why would it blow off an break ??, or it appears like it blew off.

 

[oilburner]

maybe has something to do with boost pressure working away at it . I had a look at mine an it seems to of moved back a bit. going to take it apart when I have more time.

 

[oilburner]

Definitely follow your logic. Could that pop sound have been the duct coming off?

I`m convinced there had to be a positive pressure to make that duct separate from the throttle assembly. a none turbo or none supercharged gas or diesel engine would never do that .

 

[oilburner]

Since this is a intercooler hose, isn't this connecting something bolted to the frame with something bolted to the engine? Since engines do move on the motor mounts under load, there'd would have to be some flex somewhere.

Which raises another question - what happens when the motor mounts start going bad? Because it could cause excess engine movement. This might be the weak link when that starts to happen.

the piece that broke is bolted to the top of the engine so unless the bolt came loose an fell out can`t see how its going to move.