G3500 Engines Caterpillar

Camshaft

Usage:

G3512 5JD

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Illustration 1	g03123976
Typical example (1) Left-hand camshaft assembly (2) Right-hand camshaft assembly

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Table 1
Specification for 4P-8337 Camshaft Gp and 382-5092 Camshaft Gp
Item	Qty	Part	Specification Description
A	-	-	Thickness of the groove in a new camshaft assembly is 8.75 ± 0.05 mm (0.344 ± 0.002 inch).
C	1	5B-5821 Dowel	Extension of the dowel is 12.0 ± 0.5 mm (0.47 ± 0.02 inch).
D	2	4N-1650 Dowel	Extension of the dowel is 22.0 ± 0.5 mm (0.87 ± 0.02 inch).
E	2	7N-3218 Thrust Washer	Thickness of a new thrust washer is 8.50 ± 0.05 mm (0.335 ± 0.002 inch).
F	-	-	Diameter of bearing journals in a new journal camshaft assembly is 85.88 ± 0.02 mm (3.381 ± 0.001 inch).
F	-	-	Bore in camshaft bearing after installation is 86.00 ± 0.06 mm (3.386 ± 0.002 inch).
-	-	-	End play for a new camshaft assembly is 0.15 to 0.35 mm (0.006 to 0.014 inch).
3	16	5P-0076 Bolt	Torque to 55 ± 7 N·m (41 ± 5 lb ft).

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Illustration 2	g03123978

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Table 2
Item	Qty	Part	Specification Description
-	-	-	Use the following procedure in order to determine the 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:
			Inlet lobe is 9.201 mm (0.3622 inch).
			Exhaust lobe is 8.699 mm (0.3425 inch).

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