Systems Operation, 3500 Industrial Engines

FRONT BALANCER GROUP

(1) Balancer gear. (2) Diameter of shaft (new)..................................74 900 + 0 015 mm (2 9488 + .0006 in )

Bore in bearing (after assembly)...........................75 000 + 0.053 mm (2 9528 + .0021 in )

Bearing joint must be in center of heavy section in gear at assembly. (3) Balancer gear marks must be in alignment with crankshaft gear marks as shown for SAE standard rotation engines (4) Balancer gear marks must be in alignment with crankshaft gear marks as shown for SAE opposite rotation engines (5) Crankshaft gear.

NOTE: FOR TORQUE VALUES NOT GIVEN, SEE THE FIRST PAGE OF SPECIFICATIONS FOR GENERAL TIGHTENING TORQUES

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LOWER FRONT GEAR GROUP

(1) Drive gear for water and oil pumps. (2) Idler gear. (3) Crankshaft gear. (4) Bore in bearing (after assembly) ..........................90.000 + 0.065 mm (3.5430 + .0026 in.)

Diameter of shaft (new) .................................89.880 + 0.020 mm (3.5386 + .0008 in.) (5) Bore in bearings (after assembly) ..........................75.000 + 0.055 mm (2.9528 + .0022 in.)

Diameter of shaft (new) .................................74.900 + 0.015 mm (2.9488 _ .0006 in.) (6) Thickness of thrust washer (new) .....................8.50 _ 0.05 mm (.335 _ .002 in.)

Width of groove in shaft (new) ........................8.750 + 0.025 mm (.3445 + .0010 in.)

End play for shaft ..................................0.175 to 0.325 mm (.0069 to .0128 in.)

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