Category Archives: 6.7L Cummins

NOTE: Refer to the OEM service manual for removal procedures. Remove the hydraulic pump and gear assembly.  

Install the accessory drive and new gasket. NOTE: When installing the accessory drive and gasket, make sure the oil supply hole in the gear housing is lined up with the holes in the accessory drive and gasket. The accessory drive is marked for “Top” and “Bottom”. Install and tighten the two capscrews securing the accessory… Read More »

Rear Gear Train NOTE: If oil supply to the accessory drive is not required and the gasket does not have oil passages, this check is not required. If the accessory drive uses a-rings for seals, this check is not required. Prior to installing the accessory drive, identify which gasket is going to be installed so… Read More »

Use gauge, Part Number 3824564, and magnetic base, Part Number 3377399 to check the accessory drive gear end play. If the end play is out of specification: • If just assembled, check if the drive gear and bearing were completely pressed onto the drive shaft • If not previously disassembled, disassemble the accessory drive and… Read More »

Use a hydraulic press and proper support to assemble the accessory drive in the following order: • Press the accessory drive shaft into the bearing, while supporting the bearing inner race, until the drive shaft                 bottoms on the inner race • Press the outer race of the bearing,… Read More »

If damage was found to a component of the accessory drive during the Clean and Inspect for Reuse step, the following components of the accessory drive, if damaged, can be replaced by disassembling the accessory drive. • Accessory drive shaft • Accessory drive housing • Accessory drive bearing • Accessory drive gear. NOTE: Before disassembling… Read More »

Remove any residual gasket material from the mounting surfaces of the accessory drive, driven accessory/ hydraulic pump, and, if equipped, the cover plate surface. NOTE: Make sure the oil supply hole in the accessory drive housing is open and free of debris. Inspect the accessory drive housing for cracks. Inspect the accessory drive gear and… Read More »

Remove the two capscrews securing the accessory drive to the rear gear housing. Remove the accessory drive and gasket.  

Rear Gear Train Install the idler pulley assembly and idler pulley support bracket mounting capscrews Tighten the capscrews. Torque Value: 18 N•m [ 159 in-lb ] Front Gear Train Install the idler pulley and the idler pulley mounting capscrew. Tighten the idler pulley mounting capscrew. Torque Value: Idler Pulley Mounting Capscrews 18 N•m [ 159… Read More »

Rear Gear Train Install the idler pulley onto the idler shaft. For idler pulley installations in which the idler pulley shaft is not part of the idler pulley support bracket, the pulley is symmetric, so the shaft can be assembled to either side of the pulley. NOTE: For idler pulley installations in which the idler… Read More »