PULLER AS 4425798 - Caterpillar

Illustration 1 g01350428
Top view of engine
(1) Diameter of camshaft bearing journal ... 77.850 0.025 mm (3.0650 0.0010 inch) (2) Torque for the bolts ... 35 8 N m (26 6 lb ft)Rotation of injector lobe for camshaft at zero lift ... 74 to 180 degrees
Illustration 2 g01446570 (A) Specified camshaft lobe lift Exhaust lobe ... 9.417 mm (0.3707 inch)Inlet lobe ... 12.607 mm (0.4963 inch)Injector lobe ... 12.703 mm (0.5001 inch)Use the following procedure in order to determine the actual camshaft lobe lift:
Measure the camshaft lobe height (B).
Measure the base circle (C).
Subtract the base circle (C) from the camshaft lobe height (B). The difference is the actual camshaft lobe lift.