Category Archives: 6.7L Cummins

6.7L Cummins Rocker Levers – Crankcase Breather Tube – Install

Prior to installing the crankcase breather tube, apply clean 15W-40 engine oil to the o-rings located on the crankcase breather tube. Install the crankcase breather tube into the rear gear housing. Connect the crankcase breather tube to the rocker lever cover. NOTE: The crankcase breather tube uses internal capscrews to secure the breather tube to… Read More »

6.7L Cummins Rocker Levers – Crankcase Breather Tube – Remove

NOTE: The crankcase breather tube uses internal capscrews to secure the breather tube connection to the rocker lever cover. Remove the crankcase breather mounting capscrews. At the rocker lever cover, carefully pry the crankcase breather tube away from the rocker lever cover. Pull up on the crankcase breather tube connection to remove from the rear… Read More »

6.7L Cummins Rocker Levers – Rocker Lever Housing – Remove

Rocker Lever Cover Mounted Crankcase Breather Remove the rocker lever housing mounting capscrews. Remove the rocker lever housing and gasket. Rear Engine Mounted Crankcase Breather Disconnect the injector solenoid wires from each injector. Remove the rocker lever housing mounting capscrews. Remove the rocker lever housing and gasket. Remove and discard the rocker lever housing gasket.… Read More »