ISX injectors and overhead

The critical step for the mechanical injectors on the CM870 and 871 is the injector adjustment. A high quality calibrated inch pound torque wrench is a must for accurate adjustment. Other than that its nothing special.

You can cheat the engine brake gap with a 7mm allen wrench and don't have to order the "required" hockey stick to set the brakes.

You might consider adding some dye to the fuel and running with the valve cover off and look for the happy trail. I surely wouldn't wing a set of injectors just yet. That's an expensive wing.

 

Have you tried posting on Rawze.com

 

definitely. Not to mention the other users who are hip to programming, own shops and etc. that’s the place to be with a post egr Cummins. Especially the 08-2011 871 model. Very wise, but ultimately very humble mixed with say it how it is. Maybe you find something there.

 

Last couple 871 with fuel in oil i have done have been a cracked head. X2 on @Goodysnap run it with dye in the fuel to check for leaks first

 

I meant to call it a premature breach in the compression holding device.