TRUCK SERVICE MANUAL
ENGINE
2. Loosen locknut and back off adjusting screw. Insert
feeler gauge between rocker lever and crosshead. Valve
clearances are shown in Table 14-13. Turn screw down
until lever just touches gauge and lock in this position.
Fig.14-31. Tighten locknut to 30 to 40 ft-lb. [4.1 to 5.5 kg
m] torque. When using ST-669 torque to 25 to 35 it-lb.
[3.5 to 4.8 kg mi.
3. Continue to bar engine to next "VS" mark and adjust
each cylinder in firing order. See Table 14-10. After
injector and valve adjustment is completed, bar or crank
(in chassis overhaul) engine several revolutions to
Table 14-13: Valve Clearance - Inch [mm] (Torque
Method)
Intake Valves
Exhaust Valves
Cold Set
Hot Set
Cold Set
Hot Set
Aluminum Rocker Housing
0.014
0.014
0.027
0.027
[0.36]
[0.36]
[0.69]
[0.69]
Cast Iron Rocker Housing
0.016
0.014
0.029
0.027
[0.41]
[0.36]
[0.74]
[0.69]