C15 Generator Set Engine Caterpillar

Piston and Rings

Usage:

C15 GG5

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Illustration 1	g02546096

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Table 1
Specification for the 352-6517 Piston and Rod Gp
Item	Qty	Part	Specification Description
1	1	366-2104 Top Piston Ring	Install the top piston ring with the side marked "Up-1" toward the top of the piston. Orient the colored faces to the right of the end gaps of the piston ring.
			Clearance between the ends of the top piston ring in a cylinder liner bore of 137.16 mm (5.400 inch) is 0.35 ± 0.05 mm (0.014 ± 0.002 inch).
			Increase in the clearance between the ends of the top piston ring for each 0.03 mm (0.001 inch) increase in the cylinder liner bore is 0.08 mm (0.003 inch).
			Thickness of new top piston ring is 3.83 mm (0.151 inch).
2	1	306-4016 Piston Ring	Install the intermediate piston ring with the side marked "Up-2" toward the top of the piston. Orient the colored faces to the right of the end gaps of the piston ring.
			Clearance between the ends of the intermediate piston ring in a cylinder liner bore of 137.16 mm (5.400 inch) is 0.70 ± 0.10 mm (0.028 ± 0.004 inch).
			Increase in the clearance between the ends of the intermediate piston ring for each 0.03 mm (0.001 inch) increase in the cylinder liner bore is 0.08 mm (0.003 inch).
			Thickness of new intermediate piston ring is 3.005 ± 0.015 mm (0.1183 ± 0.0006 inch).
3	1	306-4014 Piston Ring	The spring ends of the oil control ring should be assembled 180 degrees from the ring end gap. The colored faces to the right or left of the piston ring end gap.
			Clearance between the groove and the new oil control piston ring in a cylinder liner bore of 137.16 mm (5.400 inch) is 0.45 ± 0.15 mm (0.018 ± 0.006 inch).
			Increase in the clearance between the ends of the oil control piston ring for each 0.03 mm (0.001 inch) increase in the cylinder liner bore is 0.08 mm (0.003 inch).
			Thickness of new oil control piston ring is 3.980 ± 0.010 mm (0.1567 ± 0.0004 inch).
4	1	180-7350 Piston Pin	Lubricate the piston pin with clean engine oil before the piston pin is inserted into the piston body assembly and the connecting rod (6).
			Diameter of the new piston pin is 59.975 ± 0.005 mm (2.3612 ± 0.0002 inch).
			Length of the new piston pin is 89.80 ± 0.15 mm (3.535 ± 0.006 inch).
			Bore in the piston assembly for the piston pin is 60.095 ± 0.010 mm (2.3659 ± 0.0004 inch).
			Install the retainer ring (5) with the gap at the bottom of the piston. Refer to illustration 1.
7	1	151-5925 Bolt	Torque to 40 ± 8 n·m (30 ± 6 lb ft).
Thoroughly lubricate the entire piston in zone (A) with clean engine oil prior to assembly into the cylinder block.
After the piston rings have been installed, rotate the piston rings so that the end gaps are 120 degrees from each other.