Turbo Woes Continue

[ravdav4]

2001 D4D

OK so i replaced my second turbo after last one blew again after 18 months.

1 month on its burning oil again and a puff off blue smoke on starting.

Checked intercooler and oil is dripping from from outlet after removing hose.

When fitting lastest turbo all pipes and intercooler were thoroughly cleaned out to spotless.

Its looking like the oil is coming from the rocker cover breather pipe as that has fresh oil in it.

I took off rocker cover and soaked it in degreaser overnight and the pipe.

In the top of the rocker cover was a plate covering a void leading to the breather outlet which i couldn't get into as it was held down with some kind of silicone.

Does anyone know if this has a filter in it that i could clean out.

Or, as someone suggested have I got a worn engine creating pressure that is forcing oil out of the breather pipe.

Any thoughts chaps,

Thanks in advance

[igormus]

have you measured compression pressure before rotation of turbos?

you can undo those rocker arms breathing pipe and evaluate gases passing rate at an idle running of the engine.

regards

[ravdav4]

Hmm not sure about testing compression etc but there is some positive pressure from rocker breather hose.

Only thing I know for sure is that oil is in this pipe and pooling on the inlet side of turbo. Only been a month since this was completely cleaned.

Can live with the consumption but need to stop the oil getting into turbo

[igormus]

the pressure from breathing pipe confirms compression reducing -- just test it to be sure ou are on the right way --- do not change third turbo but test pressure

regards

[ravdav4]

Do u mean compression test or breather test. Know how to comp test but not the other

If its wrong what do u suspect?

[igormus]

the fist thing to do is to understand where gases are originated from -- of course compression test and do not forget to disable both SCV to exclude normal injection and deluting of lube oil. regards