MANIFOLD GP-EXHAUST 3561124 - Caterpillar

Illustration 1 g03451976
Illustration 2 g03453456
View of area A
Table 1
Specification for 9Y-3640 Cylinder Head Gp
Item Qty Part Specification Description
1 6 498-1691 Exhaust Valve Before assembly, coat the exhaust valve stems with clean engine oil.
Stem diameter (B) is 9.441 0.010 mm (0.3716 0.0003 inch).
Valve diameter (C) is 48.16 0.13 mm (1.896 0.005 inch).
Face angle is 29.25 0.25 degrees.
2 6 498-1690 Inlet Valve Before assembly, coat the inlet valve stems with clean engine oil.
Stem diameter (D) is 9.441 0.010 mm (0.3716 0.0003 inch).
Valve diameter (E) is 51.31 0.13 mm (2.02007 0.00512 inch).
Face angle is 29.25 0.25 degrees.
3 12 7S-7144 Spring Length under test force is 44.86 mm (1.766 inch).
Test force is 257 25 N (58 6 lb).
Free length after test is 52.07 mm (2.050 inch).
4 12 7E-1551 Valve Guide Bore of the exhaust and inlet valve guide before installation is 9.502 0.013 mm (0.3741 0.0005 inch).
Minimum inside diameter of the exhaust and inlet valve guide after installation is 9.456 mm (0.3723 inch).
5 6 7N-1649 Valve Seat Insert Diameter of exhaust valve seat insert is 50.889 0.013 mm (2.0035 0.0005 inch).
Bore in the cylinder head is 50.813 0.030 mm (2.0005 0.0012 inch).
Face angle is 30 1 degrees.
6 6 107-0268 Valve Seat Insert Diameter of inlet valve seat insert is 52.032 0.013 mm (2.0485 0.0005 inch).
Bore in the cylinder head is 51.956 0.030 mm (2.0455 0.0012 inch).
Face angle is 30 1 degrees.