G3516C and G3516E Gas Engines Camshaft Caterpillar


Camshaft
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Illustration 1g02981580

Table 1
Specification for 240-2688 Camshaft Gp and 253-9515 Camshaft Gp 
Item  Qty  Part  Specification Description 
16  5P-0076 Bolt  Torque to 55 ± 7 N·m (41 ± 5 lb ft)
7N-3218 Thrust Washer  Thickness (D) is 8.50 ± 0.05 mm (0.335 ± 0.002 inch).
Width (A) of the groove in the camshaft is 8.75 ± 0.05 mm (0.344 ± 0.002 inch)
5B-5821 Dowel  Extension of dowel is 12.0 ± 0.5 mm (0.47 ± 0.02 inch)
Diameter of bearing journal is 85.88 ± 0.02 mm (3.381 ± 0.001 inch)
After installation, bore diameter is 86.15 ± 0.06 mm (3.391 ± 0.002 inch).
4N-1650 Dowel  Extension of dowel is 22.0 ± 0.5 mm (0.87 ± 0.02 inch)


Illustration 2g02981582

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 the base circle (J).
3. Subtract the base circle (J) from the camshaft lobe height (H). The difference is the actual camshaft lobe lift. 
Specified camshaft lobe lift for: 
Inlet lobe is 7.4 mm (0.29 inch).
Exhaust lobe is 9.901 mm (0.3898 inch).