GASKET-CYLINDER HEAD 6I4689 - Caterpillar

Illustration 1 g03333773
Illustration 2 g03333774
Table 1
Specification for 380-7680 Camshaft Gp
Item Qty Part Specification Description
1 2 7N-3218 Thrust Washer Thickness of a new thrust washer is 8.50 0.05 mm (0.335 0.002 inch).
A - - Diameter of bearing journals for a new camshaft is 91.88 0.02 mm (3.617 0.001 inch).
B - - Thickness of the groove in a new camshaft assembly for thrust washer (1) is 8.75 0.05 mm (0.344 0.002 inch).
Illustration 3 g03333775
127-5404 Camshaft As
Illustration 4 g03333776
133-4079 Camshaft As
Table 2
Item Qty Part Specification Description
C 2 5B-5821 Dowel Extension of the new dowel is 12.0 0.5 mm (0.47 0.02 inch).
Illustration 5 g03333777
Table 3
Item Qty Part Specification Description
- - - Use the following procedure in order to determine the camshaft lobe lift:
1. Measure camshaft lobe height (E).
2. Measure base circle (F).
3. Subtract the base circle (F) from the camshaft lobe height (E). The difference is the actual camshaft lobe lift.
D - - Specified camshaft lobe lift:
Inlet lobe is 12.7500 mm (0.50197 inch).
Injector lobe is 13.7313 mm (0.54060 inch).
Exhaust lobe is 13.2499 mm (0.52165 inch).