DOWEL 3B2483 - Caterpillar

Illustration 1 g03371573
Table 1
Specification for 383-1739 Camshaft Gp
Item Qty Part Specification Description
A - - Dimension of groove in a new camshaft for the thrust washer is 8.75 0.05 mm (0.344 0.002 inch).
C 2 4N-1650 Dowel Extension of the dowel is 22.0 0.5 mm (0.87 0.02 inch).
D 2 5B-5821 Dowel Extension of the dowel is 12.0 0.5 mm (0.47 0.02 inch).
E 2 128-5993 Thrust Washer Thickness of a new thrust washer is 8.40 0.05 mm (0.331 0.002 inch).
F - - Diameter of bearing journal is 91.88 0.02 mm (3.617 0.001 inch).
Bore in camshaft bearing after installation is 92.00 0.08 mm (3.622 0.003 inch).
1 16 5P-0076 Bolt Torque to 55 7 N m (41 5 lb ft).
Illustration 2 g03371572
Table 2
Item Qty Part Specification Description
Use the following procedure in order to determine the actual camshaft lobe lift:
1. Measure camshaft lobe height (H).
2. Measure base circle (J).
3. Subtract the base circle (J) from the camshaft lobe height (H). The difference is the actual camshaft lobe lift.
G - - Specified camshaft lobe lift for
Inlet lobe is 12.73 mm (0.501 inch).
Injector lobe is 13.8065 mm (0.54356 inch).
Exhaust lobe is 13.1 mm (0.52 inch).