Piston failure Root Cause 1

[manffrogg]

I'm looking for any refernces available concerning Piston failures and seizures on diesel engines piston. Many failures are relativly simple to diagnose but a seizure without any coorelateng cause evidence is difficult. I'm looking for any help I can get.

 

[John2004]

Oil analysis can help as a preventative meaure, I know gravel pits and places that use heavy machinery do this with their diesels. If you can send the oil off for a lab analysis, it may tell you something.

Did the operator notice any warning signs leading up to the point where it failed ? Low oil pressure, noise, rough running, high operating temperature, etc.. Was the correct oil change and all maintenance schedules followed ? Sometimes heavy equipment is worked pretty hard, and some operators are more strict about maintenance than others.

I have heard of inexperienced operators ignoring very important things like low oil pressure etc..

John

 

[manffrogg]

No rust or salt, it would take a considerable vacum to draw water through the turbo into the cylinder since the turbo is about four feet higher than the water inlet. the oil was contaminated by coolant when the rod took out the liner. Maintenance was as prescribed. now warning signs that any body is mentioning

 

[MikeHalloran]

No vacuum is necessary. A 'crash stop' test will do it.

Did anyone mention what was happening when the engine died?



Mike Halloran
Pembroke Pines, FL, USA

 

[GregLocock]

4 feet is only about 2 psi.

Cheers

Greg Locock

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