Oil Pump Failed? Munching turbos...

[Jeff Knight]

Your friend might want to get a turbo timer for his truck.

 

[pwerwagn]

Has he had the truck since new???



Has the truck accumulated all its miles there in your area???



I am getting hung up on the fact that the OEM turbo was still good when he removed it at 80,000 miles and assuming he drives it the same way that he always has.



The starvation theory is good, but why would the first one last so long???



Mike.

Thats exactly why I am confused as well. He got the truck with ~30K, and it was relatively local (southwest). The OEM turbo lasted fine, in fact when he pulled it off (80K) I put it on a different truck and its still working fine. Its had a smarty on it since a few weeks after he got it, always been on 9 beta 4. 4. The gauge has always done the 0 op thing as long as he can remember, but the stocker lasted. So Im not sure if it is purely coincidence that these other 2 failed after the 0 op event? Maybe they were on their way out and the thick winter oil i what put them over the edge??

 

[Bob4x4]

I have seen the pressure regulating valves give that same symptom. A visual inspection did not show anything out of the ordinary,replacing the housing and valve fixed the issue. The truck was close to 100k and had used amsoil for most of the miles.

 

[rbattelle]

He's running 15w-40... diesel oil, right? Not spark ignition oil?

-Ryan

 

[pwerwagn]

I have seen the pressure regulating valves give that same symptom. A visual inspection did not show anything out of the ordinary,replacing the housing and valve fixed the issue. The truck was close to 100k and had used amsoil for most of the miles.

Thanks for the help guys. I am leaning this direction now.

 

[JJPage]

my hope is that he RTV'ed something and got RTV in the oil drain or something.

Im expecting to find a huge glob of RTV in the drain or something like that.

Since you stated this twice, I am compelled to disagree. If the drain tube were plugged or constricted, you would be forcing oil out of one or both thrust bushings, and possibly out of the housing between the turbine cover and compressor cover.



The mess would be very noticeable, if it(oil) was being forced through the turbine thrust bushing it would be entering the exhaust and the truck would be blowing blue smoke. If it was forced through the compressor thrust bushing, the intake and CAC would be saturated with oil(you would have noticed while changing out chargers), and if bad enough that would also cause blue smoke and maybe a very fast, unable to stop running engine.



I would stick to lack of oil flow to the turbo. Jess

 

[mwilson]

Sitting here eating lunch pondering this whole deal...



If oil starvation has indeed wasted two turbos and that plunger is found to be defective and /or sticking at will... ... ... ...



I don't think I would drive it another mile until I popped the base off and had a look at the rod and main bearings.

The turbo wouldn't be the only thing suffering.



JMHO.



Mike.

 

[B.G. Smith]

Just a thought along with what Joe said about shutting down when hot. Does he live right on a highway where he can come off from highway speed and shut down? If the turbos are failing in the driveway maybe the damage was done when parking rather than when starting up in the morning? bg