VALVE GP-SEQUENCE 4783802 - Caterpillar

Illustration 1 g02975956
Table 1
Specification for 300-9550 Cylinder Head Gp
Item Qty Part Specification Description
1 6 147-8211 Exhaust Valve Before assembly, coat the exhaust valve stems with clean engine oil.
The tip must be coated with 8T-2998 Lubricant only after assembly of the retainer.
Stem diameter (C) is 9.441 0.010 mm (0.3717 0.0004 inch).
Valve head diameter (E) is 43.00 0.13 mm (1.693 0.005 inch).
Face angle is 45.0 0.25 degrees.
2 12 252-7801 Inlet Valve Before assembly, coat the inlet valve stems with clean engine oil.
The tip must be coated with 8T-2998 Lubricant only after assembly of the retainer.
Stem diameter is (D) 8.000 0.008 mm (0.3150 0.0003 inch).
Valve head diameter (F) is 40.00 0.13 mm (1.575 0.005 inch).
Face angle is 60.25 0.25 degrees.
3 6 137-6718 Spring Length under test force is 80.27 mm (3.160 inch).
Test force is 662 33 N (149 7 lb).
Free length after test is 92.08 mm (3.625 inch).
4 12 140-6188 Spring Length under test force is 60.4 mm (2.38 inch).
Test force is 302.5 18.0 N (68.0 4.0 lb).
Free length after test is 67.5 mm (2.66 inch).
Note: Install the valve guide from the spring side of the cylinder head. Check the diameter of the valve guide bore for distortion after installation into the cylinder head.
5 6 147-8220 Valve Guide Height (A) from top of the cylinder head to the top of the exhaust valve guides is 17.8 0.5 mm (0.70 0.02 inch).
Outside diameter is 16.000 0.008 mm (0.6299 0.0003 inch).
Diameter of new valve guide bore is 9.512 0.013 mm (0.3745 0.0005 inch).
6 12 140-9670 Valve Guide Height (B) from top of the cylinder head to the top of the inlet valve guides is 23.0 0.5 mm (0.91 0.02 inch).
Outside diameter is 13.030 0.008 mm (0.5130 0.0003 inch).
Diameter of new valve guide bore is 8.072 0.013 mm (0.3178 0.0005 inch).
7 6 232-1285 Valve Seat Insert Diameter of exhaust valve seat insert is 46.000 0.013 mm (1.8110 0.0005 inch).
Bore in the cylinder head is 45.931 0.013 mm (1.8083 0.0005 inch).
Face angle is 45.50 0.25 degrees.
Depth of the bore in the cylinder head for the valve seat inserts is 10.00 0.05 mm (0.394 0.002 inch).
8 12 264-6157 Valve Seat Insert Diameter of exhaust valve seat insert is 42.000 0.013 mm (1.6535 0.0005 inch).
Bore in the cylinder head is 41.931 0.013 mm (1.6508 0.0005 inch).
Face angle is 30.25 0.25 degrees.
Depth of the bore in the cylinder head for the valve seat inserts is 9.00 0.05 mm (0.354 0.002 inch).