LUG 3G8579 - Caterpillar

Illustration 1 g02829216
Table 1
Specification for 338-8671 Cylinder Head Gp , 338-8672 Cylinder Head Gp , and 317-2440 Cylinder Head Gp    
Item     Qty     Part     Specification Description    
1     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).    
2     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).    
3     2     316-5980 Valve Stem Seal     Install the valve stem seal to the inlet valves.
Before assembly, coat with engine oil.    
4     2     316-5981 Washer     Install the washer to the exhaust valves.    
A     -     -     Height from the top of the cylinder head to the top of the valve guides is
26.0 1.0 mm (1.02 0.04 inch).    
5     2     197-6995 Valve Guide     Bore of the exhaust valve guide after installation is
12.619 0.025 mm (0.4968 0.0010 inch).    
6     2     133-9306 Valve Guide     Bore of the inlet valve guide after installation is
9.487 0.025 mm (0.3735 0.0010 inch).    
7     2     443-2712 Exhaust Valve     Before assembly, coat the exhaust valve stems with clean engine oil.
Stem diameter (B) is
12.573 0.01mm (0.4950 0.0004 inch).
Valve diameter (D) is
56.00 0.15 mm (2.205 0.006 inch).
Face angle is 44.40 0.25 degrees.    
8     2     210-2542 Inlet Valve     Before assembly, coat the inlet valve stems with clean engine oil.
Stem diameter (C) is
9.441 0.010 mm (0.3717 0.0004 inch).
Valve diameter (E) is
56.00 0.15 mm (2.205 0.006 inch).
Face angle is 19.40 0.25 degrees.    
9     2     130-2608 Valve Seat Insert     Diameter of exhaust valve seat insert is
60.119 0.015 mm (2.3669 0.0006 inch).
Bore in the cylinder head is
60.000 0.025 mm (2.3622 0.0010 inch).
Face angle is 45.00 0.25 degrees.    
10     2     130-2607 Valve Seat Insert     Diameter of inlet valve seat insert is
60.627 0.015 mm (2.3869 0.0006 inch).
Bore in the cylinder head is
60.508 0.025 mm (2.3822 0.0010 inch).
Face angle is 20.00 0.25 degrees.