D353 INDUSTRIAL & MARINE ENGINES Caterpillar


Valve Rocker Arms And Lifters

Usage:


TYPICAL ILLUSTRATION

(1) Diameter of rocker arm shaft ... 1.2235 ± .0005 in.(31.077 ± 0.013 mm)

Bore in rocker arm bearing ... 1.226 ± .001 in.(31.14 ± 0.03 mm)

Maximum permissible clearance between shaft and bearing ... .009 in.(0.23 mm)

(2) Diameter of lifter ... .9965 ± .0005 in.(25.311 ± 0.013 mm)

Bore in head for lifter ... 1.001 ± .001 in.(25.43 ± 0.03 mm)

Maximum permissible clearance between lifter and bore ... .010 in.(0.25 mm)

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