Just did 2 injectors ran2 days now skipping

[Hammerhead]

(12-31-2016 )Rawze Wrote:  Actually, since that video, we have found that 70 ft-lbs is a bit on the low side for them, but tight enough not to come loose. The average is roughly more like 105 - 115 ft lbs using the other method. 105+ I think is too high on an older head that may have been disassembled a time or 2. - I typically do the bolts at 95 ft lbs these days. that is still very tight considering the bolt and thread size.

I completely agree that they are not "stretchy" bolts and that the head is cast, etc. - A set torque spec is still preferred if you ask me.

Thanks for the update, I will update my procedure printout!
I couldn't agree more on a set torque spec. There are items where torque plus angle is necessary, but Cummins seems to really overuse it IMHO.
I could feel that 70 was a fair amount less than the procedure, but I've checked mine a couple of times and they haven't been loose, so I've left well enough alone. I'm planning on replacing a couple injectors shortly, so I'll put this new info to use!