CG137-08 and CG137-12 Generator Sets Caterpillar


Cylinder Head Valves

Usage:

CG137-08 FPL


Illustration 1g02712456

Table 1
Specification for 300-5527 Cylinder Head Gp 
Item  Qty  Part  Specification Description 
12  212-0932 Inlet Valve  Before assembly, coat the inlet valve stem with clean engine oil.
Stem diameter is 9.441 ± 0.008 mm (0.3717 ± 0.0003 inch).
Valve head diameter is 44.98 ± 0.13 mm (1.771 ± 0.005 inch).
Face angle of valve is 19.25 ± 0.25 degrees. 
12  212-0933 Exhaust Valve  Before assembly, coat the exhaust valve stem with clean engine oil.
Stem diameter is 9.441 ± 0.010 mm (0.3717 ± 0.0004 inch).
Valve head diameter is 41.81 ± 0.13 mm (1.646 ± 0.005 inch).
Face angle of valve is 19.25 ± 0.25 degrees. 
24  4N-5906 Spring  Length under test force is 54.99 mm (2.165 inch).
Test force is 344 ± 34 N (77.3 ± 7.6 lb).
Free length after test is 62.74 mm (2.470 inch)
12  213-7536 Valve Guide  Bore of the inlet valve guide before installation is 9.502 ± 0.008 mm (0.3741 ± 0.0003 inch).
Height of the inlet valve guide (A) from the top of the cylinder head to top of the valve guide is 26.00 ± 0.80 mm (1.0236 ± 0.032 inch)
12  213-7537 Valve Guide  Bore of the exhaust valve guide before installation is 9.502 ± 0.008 mm (0.3741 ± 0.0003 inch).
Height of the exhaust valve guide (B) from the top of the cylinder head to top of the valve guide is 32.30 ± 0.80 mm (1.272 ± 0.032 inch)
12  214-3286 Valve Seat  Bore in cylinder head for the inlet valve seat is 45.949 ± 0.025 mm (1.8090 ± 0.0010 inch).
Face angle of the inlet valve seat is 20.25 ± 0.50 degrees.
Outside diameter of face of the inlet valve seat is 42.01 mm (1.654 inch)
12  212-0936 Valve Seat  Bore in cylinder head for the exhaust valve seat is 42.774 ± 0.025 mm (1.6840 ± 0.0010 inch).
Face angle of the exhaust valve seat is 20.25 ± 0.25 degrees.
Outside diameter of face of the exhaust valve seat is 37.3 mm (1.47 inch)

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