6.7L Cummins Mounting Adaptations – Flywheel Housing – Install

Rear Gear Train
NOTE: Before installing the flywheel housing, make sure any locating dowel rings are in the same position as when
the flywheel housing was removed.
NOTE: The sealant called for in the following step can appear different than what was originally used to build the
engine.
Apply a 1.5 to 2.0 mm [0.06 to 0.08 in] wide bead of sealant, Part Number 3164070, to the back side of the
flywheel housing in the path illustrated.
NOTE: Install the flywheel housing within 10 minutes of applying the sealant or it will not seal correctly. Once
installed, allow the sealant to dry for 30 minutes before running the engine.
Install the flywheel housing and cap screws.

Tighten the flywheel housing cap screws in the sequence shown.
NOTE: Due to different SAE size flywheel housings, the location of the mounting cap screws can appear different
than the illustration shown. The sequence shown will work for all sizes of flywheel housings.

Install the rear engine support bracket and mounting cap screws.
Torque Value: 77 Nโ€ขm [ 57 ft-lb ]

NOTE: Make sure to install any shims or spacers in the same location as removed.
Lower the rear of the engine.
Install the rear engine mount fasteners.
Tighten to the OEM specification.
Remove the lifting fixture or hoist from the rear of the engine.

Front Gear Train
NOTE: Before installing the flywheel housing, make sure any locating dowel rings are in the same position as when
the flywheel housing was removed.
If previously equipped, install a new rectangular seal on the rear seal carrier and apply assembly lube, Part
Number 3163087.

If previously equipped, install a new rectangular seal for the camshaft journal bore to the back side of the flywheel
housing.
Apply a small amount of sealant, Part Number 3164067, to hold the seal in place until the flywheel housing is
installed.

Inspect the rear face of the cylinder block and flywheel housing mounting surface for cleanliness and raised nicks
or burrs.
Install two guide pins. Part Number 3163934.
Install the flywheel housing over the guide pins, making sure the flywheel housing is located on the dowel rings.
NOTE: Be sure the sealing ring is not damaged during installation.

Remove the guide pins.
Install the mounting cap screws.

Tighten the flywheel housing cap screws in the sequence shown.
Torque Value: 77 Nโ€ขm [57 ft-lb]