C4.4 Industrial Engine Camshaft Caterpillar

Illustration 1	g01927854
Checking the end play of the camshaft

(1) End play of a camshaft ... 0.106 to 0.558 mm (0.00417 to 0.02197 inch)

Maximum permissible end play of a worn camshaft ... 0.62 mm (0.0244 inch)

Illustration 2	g02150828
Typical example

(2) Bolt

Torque for the 8.8 graded bolt ... 95 N·m (70 lb ft)

Torque for the 10.9 graded bolt ... 120 N·m (89 lb ft)

(3) The diameters of the camshaft journals are given in the following tables.

Maximum wear on the camshaft journals ... 0.05 mm (0.0021 inch)

Check the camshaft lobes for visible damage. If a new camshaft is installed, you must install new lifters.

Illustration 3	g02474757
Typical example

(4) Camshaft thrust washer

Outer diameter (X) ... 72.949 to 73.000 mm (2.872 to 2.874 inch)

Thickness (Y) ... 5.486 to 5.537 mm (0.21598 to 0.21799 inch)