C15 and C18 Engines for Caterpillar Built Machines Valve Rocker Arm Caterpillar


Valve Rocker Arm
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Illustration 1g06528947

Table 1
Item  Qty  Part  Specification Description 
274-4491 Arm Adjustment Screw  Free running torque of arm adjustment screw must not exceed 0.4 N·m (3.5 lb in)
203-8823 Arm  Bore (D1) in the valve rocker arm for the rocker arm shaft is 40.065 ± 0.015 mm (1.5774 ± 0.0006 inch).
Bushing must not extend beyond either face of the rocker arm. 
276-5317 Nut  Hold arm adjustment screw in position and tighten the nut to 6 ± 3 N·m (53 ± 27 5 lb in)
437-3857 Pin  Pin must not extend beyond either face of the valve rocker arm. 

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