2005 injector replacement

[tjm]

So a generic question on removal/installation methodology.

I see many videos where all injectors are removed as a set, then installed. Wouldn't it be better to remove one, install one, rinse and repeat? You wouldn't have to keep track of which rocker arms go where.

 

[Topzide]

On most repairs, it's up to the wrench turner. I prefer to stay with current task ( torque spec - wrenches needed) before other steps. Remove all and have labeled - install needed parts - replace all parts removed. It works for me. I set up to do it in stages, hate having to keep changing torque settings, I'd have the wrong torque on something!

 

[jjdiesel]

So what do you guys think...when replacing all injectors, remove each fuel line separately or the entire rail with fuel lines intact?

 

[Ozymandias]

Each line by itself and immediately cover each rail opening from dust and dirt contamination.
Also flush the injector lines with brakeklean right before installing them.
Never forget - every part you touch here is after the fuel filter, cleanliness is #1 topic here.

 

[BigPapa]

Just FYI, I was told by a certified Cummins tech a few weeks ago, that you need to inspect the mating ends of the injector lines, and if there's any sign of galling or surface "disruption", you need to replace that line. He said most of the lines he's removed have needed to be replaced, so he replaces them all now instead of getting burned.

 

[sag2]

Just FYI, I was told by a certified Cummins tech a few weeks ago, that you need to inspect the mating ends of the injector lines, and if there's any sign of galling or surface "disruption", you need to replace that line. He said most of the lines he's removed have needed to be replaced, so he replaces them all now instead of getting burned.

I have rarely seen Cummins injector lines requiring replacement. Ecodiesel lines (and injector copper washers) are a different story. The lines on the ED have a chance to leak, but Cummins lines rarely leak when reinstalled. In fact the ED lines are serviced as a set.

 

[jjdiesel]

Thank you guys, appreciate the input. Gonna keep it clean, thanks Ozy! It looks like a lot of UTube guys take the whole rail off but I wanted to check TDR guys.

 

[jjdiesel]

I'm finding conflicting info on the torque values for the fuel line nuts. Ones says 22 ft lbs at both locations, head and rail...and another says 22 at head and 27 on rail. Anyone know for sure...please?

 

[BigPapa]

I posted the torque charts on posts #49 & #52 if you're the OE 5.9L lines. Yes, it's different on each end.

 

[jjdiesel]

I posted the torque charts on posts #49 & #52 if you're the OE 5.9L lines. Yes, it's different on each end.

ooops, yes you did!..thanks Scott

 

[jjdiesel]

Well, got the BBI stage 1's installed, everything went well, appreciate all your guys' input! Throttle response is very noticeable, and I'm not blowing black smoke anymore...stock truck except for turbo. I had dynomite diesel extrude honed injectors in it,...truck ran fine but made black smoke quite easily. Looking forward to an MM3 and some custom tuning!

 

[tjm]

Well, got the BBI stage 1's installed, everything went well, appreciate all your guys' input! Throttle response is very noticeable, and I'm not blowing black smoke anymore...stock truck except for turbo. I had dynomite diesel extrude honed injectors in it,...truck ran fine but made black smoke quite easily. Looking forward to an MM3 and some custom tuning!

any early impressions on EGTs?

 

[jjdiesel]

Totally normal, but I haven't towed anything yet.

 

[tjm]

Totally normal, but I haven't towed anything yet.

Can you tie up some chains around your neighbors house and give it a tug? Unless you like them of course.

 

[jjdiesel]

....I'll try something a little less invasive!