New injector torque specs big cam Cummins

The one on the top right, and that's the one that will have the ABC markings also.

 

Top right is the accessory drive just as @Star Rider mentioned. Look for the bigger nut in the center, that’s what you’ll use to rotate the engine, as well as align your A/B/C marks with the pointer on the front cover behind the accessory drive pulley….

 

Somebodys cheat sheet

 

Crank & accessory drive both turn the same direction. Handle up on your ratchet and pull down towards left side of truck….

 

Here’s the alignment pointer….

 

The A/B/C will be on the back of the accessory drive pulley, clean it off as you rotate it and look for the little mark with the A B or C beside it.

Just a suggestion… if you start with B it will probably be easier on you.

On B you will be set for cylinder 3 or 4 ( center head). After you roll up on B see which rockers are loose… cylinder 3 or cylinder 4. Make sure both rockers on that cylinder are loose!

Example: Cylinder 4 rockers are loose… replace and adjust injector 1.

Cylinder 3 rockers are loose, replace and adjust injector 6.

Then work your way down the chart as you rotate the engine to the next mark which would be C….