C9.3 Tier 4 Final Engines Caterpillar


Valve Rocker Arms, Lifters, and Bridges

Usage:

D6T 2B3


Illustration 1g02663338

Table 1
Specification for 348-9896 Valve Mechanism Gp 
Item  Qty  Part  Specification Description 
Inlet valve lash is 0.38 ± 0.08 mm (0.015 ± 0.003 inch).
Exhaust valve lash is 0.64 ± 0.08 mm (0.025 ± 0.003 inch)
12  Torque to 30 ± 7 N·m (266 ± 62 lb in)
274-5874 Rocker Arm Shaft  Diameter of the rocker arm shaft is 21.500 ± 0.013 mm (0.8465 ± 0.0005 inch)
Bore in the rocker arm for the rocker arm shaft is 21.548 ± 0.013 mm (0.8483 ± 0.0005 inch).


Illustration 2g01623125
Right side view

Table 2
Item  Qty  Part  Specification Description 
Before installation of the valve lifter assembly, lubricate the bore of the valve lifter assembly and the lobes of the camshaft with a 50/50 mixture of clean engine oil and 8T-2998 Lubricant. 
12  453-5998 Valve Lifter As  Bore in the 453-5999 Lifter Body for the roller pin is 12.668 ± 0.006 mm (0.4987 ± 0.0002 inch)
Diameter of the 453-6000 Roller Pin is 12.694 ± 0.006 mm (0.4998 ± 0.0002 inch).
Tighten the bolts and the studs in a numerical sequence that is shown in Illustration 2 to standard torque. 

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