Camshaft
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| Illustration 1 | g00819857 |
Typical example | |
(1) Height of the camshaft lobe for the inlet and exhaust valves
- C1.5 and C2.2 ... 34.065 to 34.120 mm (1.3411 to 1.3433 inch)
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Service limit
- C1.5 and C2.2 ... 33.7 mm (1.3270 inch)
(2) Height of the camshaft lobe for the fuel injection pump
- C1.5 and C2.2 ... 41.940 to 42.060 mm (1.6512 to 1.6559 inch)
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Service limit
- C1.5 and C2.2 ... 41.8 mm (1.6450 inch)
(3) Height of the camshaft lobe for the fuel transfer pump
- C1.5 and C2.2 ... 31.900 to 32.000 mm (1.2559 to 1.2598 inch)
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Service limit
- C1.5 and C2.2 ... 30.0 mm (1.1810 inch)
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| Illustration 2 | g00295323 |
(A) Actual camshaft lobe lift
(B) Height of the camshaft lobe
(C) Base circle
To determine the lobe lift, use the procedure that follows:
- Measure the height of the camshaft lobe (B) .
- Measure the base circle (C) .
- Subtract the base circle that is found in Step 2 from the height of the camshaft lobe that is found in Step 1. The difference is the actual camshaft lobe lift.
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| Illustration 3 | g01297670 |
Typical example | |
(4) Tighten the setscrews for the retainer plate for the camshaft to the following torque. ... 11 N·m (8.0 lb ft)
(5) Retainer plate for the camshaft
(6) Camshaft gear
Caterpillar Information System:
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