SUPPORT-TRUNNION 4549109 - Caterpillar

Illustration 1 g01419279
(1) Cam gear (2) Camshaft End play of a new camshaft ... 0.13 0.08 mm (0.005 0.003 inch)Maximum permissible end play of a worn camshaft ... 0.46 mm (0.018 inch) (A) Diameter of the bearing journals for a new camshaft ... 65.126 0.013 mm (2.5640 0.0005 inch) (B) Plate Thickness of the new plate ... 4.7 mm (0.19 inch)Thickness of the groove in the new camshaft ... 4.83 0.05 mm (0.190 0.002 inch)
Illustration 2 g01419280 (C) Specified camshaft lobe lift Exhaust lobe ... 6.858 mm (0.2700 inch)Inlet lobe ... 8.655 mm (0.3407 inch)In order to determine the actual camshaft lobe lift, use the following procedure:
Measure the camshaft lobe height (D).
Measure the base circle (E).
Subtract the base circle (E) from the camshaft lobe height (D). The difference is the actual camshaft lobe lift. Maximum permissible difference between actual lobe lift and the specified lobe lift of a new camshaft ... 0.10 mm (0.004 inch)