819012 Force KEY SET (Stamped 51)

Table 1
Specifications for 363-3890 Camshaft Gp    
Callout     Part Number     Part Name     Specification Description    
1     133-1011     Washer     Outer diameter of washer (X) is
72.949 to 73.000 mm (2.872 to 2.874 inch).
Thickness of washer (Y) is
5.486 to 5.537 mm (0.21598 to 0.21799 inch).    
3     -     -     End play of a camshaft...................
0.106 to 0.558 mm (0.00417 to 0.02197 inch)
Maximum permissible end play of a worn camshaft...................
0.62 mm (0.0244 inch)    
-     -     Camshaft Journals     Diameter of number 1 journal is
50.711 to 50.737 mm (1.9965 to 1.9975 inch).
Diameter of number 2 journal is
50.457 to 50.483 mm (1.9865 to 1.9875 inch).
Diameter of number 3 journal is
49.949 to 49.975 mm (1.9665 to 1.9675 inch).
Maximum wear on the camshaft journals is
0.05 mm (0.0021 inch).    
Table 2
Specifications for 370-6545 Camshaft Bushing    
Callout     Part Number     Part Name     Specification Description    
-     370-6545     Camshaft Bushing     Diameter of the installed camshaft bearing is
50.787 to 50.848 mm (1.9995 to 2.0019 inch).    
Table 3
Specifications for 339-4278 Tappet    
Callout     Part Number     Part Name     Specification Description    
-     339-4278     Tappet     Diameter of body...................
21.938 to 21.963 mm (0.86370 to 0.86468 inch)    
-     -     -     Bore diameter in the cylinder block ...................
22.000 to 22.032 mm (0.86614 to 0.86740 inch)    
-     -     -     Clearance...................
0.038 to 0.095 mm (0.0015 to 0.0037 inch)    Removal Procedure
Start By:
Remove the rockershaft and pushrods. Refer to Disassembly and Assembly, "Rocker shaft and Pushrod" for the correct procedure.
Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front)" for the correct procedure.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
The engine should be mounted on a suitable stand and placed in the inverted position.
Illustration 1 g02009034
Remove thrust washer (1) from the cylinder block. Do not remove dowel (2) from the cylinder block unless the dowel is damaged.Note: The thrust washer can have one or two Slots (X) .
Illustration 2 g02009035
Do not damage the lobes or the bearings when the camshaft is removed or installed.
Carefully remove camshaft (3) from the cylinder block.
If necessary, remove key (4) from camshaft (3) .Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Clean the camshaft and the thrust washer. Inspect the camshaft and the thrust washer for wear and for damage. Replace any worn components or any damaged components.
Clean the camshaft bearing in the cylinder block. Inspect the camshaft bearing for wear and for damage. If necessary, replace the camshaft bearing. Refer to Disassembly and Assembly, "Camshaft Bearing" for the correct procedure.
It is strongly recommended that all lifters should be replaced when a new camshaft is installed.
Inspect the lifters for wear and for damage. Replace any worn lifters or any damaged lifters. Refer to Disassembly and Assembly, "Lifter Group" for the correct procedure.
Illustration 3 g02009035
If necessary, install a new key (4) into camshaft (3) .
Lubricate the bearing surfaces of camshaft (3) and lubricate the lobes of the camshaft with clean engin