C11 and C13 Engines Camshaft Caterpillar


Camshaft
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Illustration 1g03369757

Table 1
Specification for 355-1288 Camshaft Gp 
Item  Qty  Part  Specification Description 
8T-0338 Bolt  Torque to 35 ± 8 N·m (26 ± 6 lb ft)


Illustration 2g03369759
344-9038 Camshaft

Table 2
Item  Qty  Part  Specification Description 
Diameter of camshaft bearing journal is 77.850 ± 0.025 mm (3.0650 ± 0.0010 inch)
Maximum exhaust lobe lift at zero degrees is 9.41655 mm (0.37073 inch)
Maximum injector lobe lift at zero degrees is 12.70343 mm (0.50013 inch)
Maximum inlet lobe lift at zero degrees is 12.60667 mm (0.49632 inch)
Use the following procedure to find the actual lobe lift (C):

1. Measure the camshaft lobe height (D). 
2. Measure the base circle (E). 
3. Subtract the base circle measurement in step 2 from the camshaft lobe height in step 1. The difference is the actual lobe lift. 
The maximum permissible difference between the actual lobe lift in step 3 and the specified camshaft lobe lift of a new camshaft is ± 0.10 mm (± 0.0034 inch)