Cummins 4BT – Gear Housing or Gasket – Installation

Mark and trim 1.59 mm [1/16 inch] off of the new gear housing gasket.
NOTE: When properly trimmed, the gear housing gasket should be even with the lubricating oil pan gasket when
installed.

Position the gasket on the alignment dowels.

10 mm
Carefully install the gear housing, making sure both gas­kets are in place.
Torque Value: 24 N®m [18 ft-lb]

Remove the thread or wire holding the gasket in place.

Lubricate the camshaft and thrust washer with LubriplateTM 105.

Install the camshaft/thrust washer.
Make sure the alignm ent marks on the camshaft and camshaft gears are aligned.
Refer to the camshaft installation procedure procedure (7-19) if additional information is needed.

Install the thrust washer capscrews.
Torque Value: 24 N®m [18 ft-lb]

Verify the camshaft has proper backlash and end play.
A = 0.12 to 0.47 mm [0.005 to 0.018 in]
B = 0.076 to 0.330 mm [0.003 to 0.013 in]

Remove the wooden dowels from the tappets.

Install and lubricate the push tubes.