Engine/Transmission (1994 - 1998) Injector help for friend

[NPloysa]

My friend has a '98 12 valve and has a concern about his #2 cylinder injector. I am not familiar with the 12s so I said I would ask you guys since I didn't know.



On his #2 the injector sits inside a nut. The rubber seal or o-ring between the nut and the injector is leaking. He is wondering if the o-ring is part of the injector, part of the nut, or a seperate piece all together...



Thanks guys, appreciate it.



Nick

 

[Jim Fulmer]

That is a seal ring to keep water out of the area between the injector and head, the leak is coming from the line most likely..... tighten it!



Jim

 

[Smokin Dodge]

It is a different piece itself it sets in between the inj and nut if its not in flush it will leak.

 

[NPloysa]

Thanks. I left him a message that he needs to tighten the nut or get a new o-ring. Thanks guys!



Nick

 

[dpuckett]

Dont forget the return line fitting banjo bolt. THe O-ring is just to keep dust, water, etc out of the injector bore, isnt it?



Daniel

 

[drrhoades]

I am having the same issue with my #6 injector. Could someone tell me what to torque the nut to. I called Cummins and they said 122 ft lbs. but that seems awfully high. Seeing as I dont have a manual at hand could someone please check this for me.





Thanks,

Doug

 

[Smokin Dodge]

The tourqe#s on the nut that hold the injector down is 44 ft lbs and the nut on the line that goes on the injector is 22 ft lbs .

 

[drrhoades]

Thanks for the info I am gald I asked.



Doug