Apr 16, 2010 · Paccar considers Cummins a valuable partner, as Cummins makes the PX-6 and -8 midrange engines, helped with MX development and supplies the MX's variable-nozzle turbo. The drive
Should I torque my valve cover gasket to the lower spec first, and tighten if needed? If the specs are 72 - 84 inch pounds, i always use the lowest value, especially in aluminum. If you use a new gasket and clean the mating surfaces well, you'll be good to go i think.