This post is mainly written to introduce how to adjust crosshead, injector and valves of Cummins NT diesel engines correctly. Pay attention to reading and you will learn more. Crosshead Adjustment. Note: Crosshead adjustment should always be made before attempting to adjust the valves. 1. Loosen the locknut on the crosshead adjusting screw. Aug 17, 2011 · where are you trying to turn the motor at if you are on the crank it is hard to do. do that at the acc drive pully on the left side if im not forgetful i beleave its a 1 3/16 or a 1 1/2 or so its been a while since i have worked on a cummins. and another helpful hint on adjusting the valves is get you 2 feeler gages if im not forgetfull agian its a .14 on the intake and a .27 on ext just take ...

Adjusting Cummins valves and injectors., ChrisL, 4. Dec 2006 20:01: I want to adjust them on my 280. I've been E-talking to Bruce at Pittsburg performance. He wants me to set the valves @ .016 and.029 and the injectors @ 50 inlbs. Ok so I turn the acessory drive untill I see some numbers. Find many great new & used options and get the best deals for Cummins Fuel Injector Adjustment Kit 3375842 at the best online prices at eBay! Free shipping for many products!