PISTON GP 4209223 - Caterpillar

Illustration 1 g02563276
Table 1
Specification for 348-9715 Camshaft
Item Qty Part Specification Description
A - - Diameter of camshaft bearing journal is 77.850 0.025 mm (3.0650 0.0010 inch).
1 - - Maximum exhaust lobe lift at zero degrees is 9.41655 mm (0.37073 inch).
2 - - Maximum injector lobe lift at zero degrees is 13.73267 mm (0.54066 inch).
3 - - Maximum inlet lobe lift at zero degrees is 12.60667 mm (0.49632 inch).
- - - Use the following procedure to find the actual lobe lift (B):
1. Measure the camshaft lobe height (C).
- - - 2. Measure the base circle (D).
- - - 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).