Rebuilding this 12 valve, got new bolts from Cummins and several of them keep turning and won't come to final torque of 130. Started at 44, then 88, and a couple went to 130 but others keep turning. Does this mean they're stretching? The book says to go to 130 with no additional 90 degrees mentioned. The bolt heads have a T + 90 on them so what torque do I stop at? Have I damaged the ones that have kept turning? Probably 180 degrees past 88 ft lbs while looking for 130. Torque wrench is a Snapon that just came from calibration. It repeats good torques when I get them.

 

I've found 4 sources including a 12 valve cummins manual pdf and a reputable YouTube diesel mechanic that call for torque sequence of 44, 88, 130 ft lbs, but after more searching I've found 2 sources calling for 90 degrees past 66 ft lbs which makes sense for the bolt heads having that t + 90 mark on them. Did cummins change main cap bolts at some point for the 12 valve??