Do We have any Cummins Techs on the Board?

[Bruno2]

I am having an issue with a C6 8.3L electronic. There seems to be a lot of fuel getting into the oil pan. Is there a common issue with this?

 

[Lostnwalmart]

How many miles and is it missing? Need a lot more info than that to help

 

[collin_bucko]

This ^^^ we need mileage, how is it running? Year of motor, etc...

 

[Bruno2]

It runs great and doesn't miss like an injector is going bad. I believe it is an 06. I couldn't tell you the mileage. I could tomorrow.

 

[Lostnwalmart]

so its a common rail pre dpf

 

[Bruno2]

Whats a pre dpf?

 

[Lostnwalmart]

Diesel particulate filter....

 

[1-5-3-6-2-4]

Whats a pre dpf?

EPA'07 introduced PDFs into onhighway emissions.

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[Scooter's Roofing]

CP3 seal or injectors... about the only way it happens

 

[LReiff]

Injector o-rings could he leaking. They're the same as an 03+ 5.9 or 6.7 motor.

 

[Bruno2]

Do the O rings for the injectors come in a kit?

 

[LReiff]

Not sure. Contact Snedge, he's a cummins dealer, stocks many parts and ships fast.

 

[Astaindsoul5446]

I had the same issue on an 03, it turned out to be the injectors... I did the orings first, but no change. Sent the injectors to be tested and wound up being them.
In a weeks time, say 150-200 miles, it put 1-1.5 gallons of fuel In the pan. No smoke.
Good luck with it.

 

[HeTheAethyr!]

That particual high pressure pump will produce a performance complaint before it puts fuel in the oil by its architecture.

-Check the fuel return line restriction, Max of 4"hg
-If with in spec. remove valve cover and run the engine from a bucket of dyed fuel, viewing with a black light and monitor. Some times your need to load the engine to reproduce the complaint.

I've also had injector bodys leak themself. O-rings are cheep, replace the coppers also.

 

[Bruno2]

does anybody have a link to replacing the coppers?

 

[Gibson]

does anybody have a link to replacing the coppers?

If you can remove an injector you can replace the copper washer...

Or do you need help in removing the injector itself?

 

[Bruno2]

I believe on the 7.3's the coppers take a tool to remove and replace. So I was wondering if the cummins motors were the same?

 

[MufflerBearing]

I believe on the 7.3's the coppers take a tool to remove and replace. So I was wondering if the cummins motors were the same?

They slide off and on the injector tip.

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[Bruno2]

Ok, here is an update. Turns out the motor is a mechanical model ( I believe) . The inj's dont have a solenoid pack on them . The Inj's are narrow , about 1" diameter and 6-7" long. The only thing that seals them is a copper washer and maybe some type of jacket instead of an O ring. I dont believe the inj's are sealed well, so it must be another issue besides O rings.

 

[Gibson]

Post a picture of what your working on plesse