Ok i just had a inframe dome on a 2001 freightliner witha 475 isx. I idles very ruff, and seems to have weird vibrations around 60. my oil pressure is only about 30psi.

 

Take it back to whoever did your inframe?

 

The overhead set was done wrong.

Why, is 30 low? What is it normally?

 

Has it been running rough sense you got it back or did it start sometime after you got it back ?
Sounds like a bad metering or timing actuator (possibly?)
If the engine runs on after it is shout off it could possibly be an injector check ball not seating = you will need a new injector to fix that.
Was this "Rebuild" done at a Cummings dealer OR distributor ??
=== eather way you should take it back and have that Tec. check it out.

 

It should be around 35 to 45 psi. I hAd the overhaul at a Cummins dealer.

 

Cummings???

 

This is too easy... it just had an in-frame, now you have rough idle and low oil pressure - TAKE IT BACK!!!

 

Diesel Nut wrote:
Has it been running rough sense you got it back or did it start sometime after you got it back ?
Sounds like a bad metering or timing actuator (possibly?)
If the engine runs on after it is shout off it could possibly be an injector check ball not seating = you will need a new injector to fix that.
Was this "Rebuild" done at a Cummings dealer OR distributor ??
=== eather way you should take it back and have that Tec. check it out.


Cummings???
_________________
Bob H



SORRY Bob, I had a couple of beer and mistakenly put a "g" in Cummins.

My apologies to eveyone, Diesel Nut.