C7 Marine Engine Caterpillar


Gear Group (Front)

Usage:

C7 C7B



Illustration 1g01395823

(1) Camshaft idler gear

Diameter of new shaft (A) ... 74.000 ± 0.013 mm (2.9134 ± 0.0005 inch)

Distance between the front of the bearing face and the front of the gear face (B) ... 1.08 ± 0.25 mm (0.043 ± 0.010 inch)

(2) Camshaft gear

(3) Tighten the bolts of the camshaft idler gear to the following torque. ... 70 ± 15 N·m (50 ± 11 lb ft)

(4) Align the timing marks on the camshaft idler gear (1) with the holes on the camshaft (2) and the crankshaft gear (5) .

(5) Crankshaft gear

(6) Oil pump drive gear

(7) Apply 9S-3263 Thread Lock Compound to the threads of the oil pump idler gear bolt. Tighten the bolt to the following torque. ... 55 ± 10 N·m (41 ± 7 lb ft)

(8) Oil pump idler gear

Distance between the rear of the bearing face and the rear of the gear face (C) ... 0.75 ± 0.25 mm (0.030 ± 0.010 inch)

Diameter of new shaft (D) ... 28.644 ± 0.013 mm (1.1277 ± 0.0005 inch)

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