C3.4B Engines For Caterpillar Built Machines Caterpillar

Camshaft

Usage:

CD-44B 398

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Illustration 1	g02844377
Typical example

(1) Bolts

Torque for the bolts ... 25 N·m (18 lb ft)

(2) End play of a camshaft ... 0.1 to 0.3 mm (0.00394 to 0.01181 inch)

Maximum permissible end play of a worn camshaft ... 0.3 mm (0.01181 inch)

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

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Table 1
Camshaft Journals from the Front End of the Engine	Standard Diameter
1 Front	53.995 to 54.045 mm (2.12578 to 2.12775 inch)
2, 3 and 4	49.975 to 50.025 mm (1.96752 to 1.96948 inch)
5 Rear	39.975 to 40.025 mm (1.57382 to 1.57578 inch)

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

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