HOUSING 3649724 - Caterpillar

Illustration 2 g03124098
Table 2
Item     Qty     Part     Specification Description    
7     2     4N-0955 Dowel     Protrusion (A) of the dowel above the top surface of the shaft bracket is
9.7 1.0 mm (0.38 0.04 inch).    
B     1     4N-1107 Rocker Arm Shaft     Diameter is
24.752 0.013 mm (0.9745 0.0005 inch).    
8     3     2N-7229 Spring     Length under test force is
74.17 mm (2.920 inch).
Test force is
44.5 to 53.4 N (10.0 to 12.0 lb).
Free length after test is
114.3 mm (4.50 inch).    
9     4     2N-7228 Washer     As requires, use the washers in order to obtain
0.30 to 1.40 mm (0.012 to 0.055 inch) end play for rocker arm.
Thickness of new washer is
0.76 0.13 mm (0.030 0.005 inch).    Type 2
Illustration 3 g03124099
Table 3
Specification for 4N-4298 Valve Mechanism Gp    
Item     Qty     Part     Specification Description    
1     8     4N-5613 Rocker Arm     Bore in the rocker arm for the rocker arm shaft is
24.803 0.013 mm (0.9765 0.0005 inch).    
2     -     -     Refer to Specifications, "Cylinder Head" for information that is related to the tightening sequence of the cylinder head bolts.    
3     8     9L-7712 Nut     After setting the valve lash, tighten to
30 4 N m (266 35 lb in).
Inlet valve lash setting is
0.38 0.10 mm (0.015 0.004 inch).
Exhaust valve lash setting is
0.76 0.10 mm (0.030 0.004 inch).
Recheck the valve lash setting.    
4     -     -     Tighten the nut to
47 9 N m (35 7 lb ft).    
A     -     -     Protrusion of the dowel is
32.3 mm (1.27 inch).    
5     16     305-6843 Guide Spring     Refer to Reuse And Salvage Guidelines, SEBF8066, "Visual Inspection of Lifter Guide Springs in 3400 Series Engines" in order to obtain reuse information on guide springs.    
6     16     101-7788 Valve Lifter As     Diameter is
27.896 0.013 mm (1.0983 0.0005 inch).    
Illustration 4 g03124100
Table 4
Item     Qty     Part     Specification Description    
7     2     4N-0955 Dowel     Protrusion (B) of the dowel above the top surface of the shaft bracket is
9.7 1.0 mm (0.38 0.04 inch).    
C     1     4N-1107 Rocker Arm Shaft     Diameter is
24.752 0.013 mm (0.9745 0.0005 inch).    
8     3     2N-7229 Spring     Length under test force is
74.17 mm (2.920 inch).
Test force is
44.5 to 53.4 N (10.0 to 12.0 lb).
Free length after test is
114.3 mm (4.50 inch).    
9     4     2N-7228 Washer     As requires, use the washers in order to obtain
0.30 to 1.40 mm (0.012 to 0.055 inch) end play for rocker arm.
Thickness of new washer is
0.76 0.13 mm (0.030 0.005 inch).