G3516H and G3520H Generator Set Engines Caterpillar

Cylinder Head Valves

Usage:

G3520H GFP

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Illustration 1	g03353669

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Table 1
Specification for 418-9804 Cylinder Head As, and 220-0694 Cylinder Head Gp
Item	Qty	Part	Specification Description
1	4	316-5977 Spring	Length under test force is 57.5 mm (2.26 inch).
			Test force is 248.0 ± 12.4 N (55.8 ± 2.8 lb).
			Free length after test is 71.4 mm (2.81 inch).
2	4	316-5976 Spring	Length under test force is 60.29 mm (2.374 inch).
			Test force is 460 ± 23 N (103 ± 5 lb).
			Free length after test is 74.8 mm (2.94 inch).
3	4	395-4262 Valve Stem Seal	Install the valve stem seal to the inlet and exhaust valves.
			Install the valve stem seal after valves are placed.
4	4	395-4263 Valve	Before assembly, coat the valve stems with engine oil.
			Stem diameter is 9.427 ± 0.010 mm (0.3711 ± 0.0004 inch).
			Valve head diameter is 56.00 ± 0.15 mm (2.205 ± 0.006 inch).
			Valve face angle is 70.75 ± 0.25 degrees.

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Illustration 2	g03353677

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Table 2
Item	Qty	Part	Specification Description
5	4	308-7100 Valve Seat Insert	Shrink the valve seat inserts by reducing the temperature. Shrinking the valve seat inserts allows placement into the counterbore.
			Outside diameter is 60.115 ± 0.015 mm (2.3667 ± 0.0006 inch).
			Bore in the cylinder head for valve seat insert (D) is 60.000 ± 0.025 mm (2.3622 ± 0.0010 inch).
			Face angle is 20.25 ± 0.25 degrees.
6	2	184-5494 Valve Guide	Bore in intake and exhaust valve guides after installation of valve guides into cylinder head assembly is 9.467 ± 0.013 mm (0.3727 ± 0.0005 inch). Height (C) from the top of the cylinder head to the top of the valve guides is 26.0 ± 0.5 mm (1.02 ± 0.02 inch).
7	2	184-5495 Valve Guide

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