NUT 6B6682 - Caterpillar

3408
Illustration 1 g01412703
(1) Fuel pump drive gear and timing advance unit (2) Camshaft gearNote: Align the "V" timing marks prior to installation. (3) Water pump drive gear (4) Accessory drive gear (5) Idler gear assembly (A) Diameter of new idler shaft ... 63.500 0.013 mm (2.5000 0.0005 inch) Bore in bearing after assembly ... 63.602 0.038 mm (2.5040 0.0015 inch) (B) Installation depth of the bearing ... 0.38 0.25 mm (0.015 0.010 inch)Note: Align the "V" timing marks prior to installation. (6) Torque for bolts ... 55 10 N m (41 7 lb ft)Prior to assembly, lubricate the idler shaft, the bore of the shaft bearing, and the faces of thrust plate (7) with engine oil. Install the thrust plate with the oil groove side toward the idler gear. (8) Crankshaft gearNote: Align the "V" timing marks prior to installation. (9) Engine oil pump drive gear (10) Torque for the gear retaining bolt ... 55 10 N m (41 7 lb ft)3412
Illustration 2 g01412711
(11) Fuel pump drive gear and timing advance unit
Illustration 3 g01412720
Timing marksTypical example (12) Camshaft gearNote: Align the "V" timing marks prior to installation. (13) Water pump drive gear (14) Accessory drive gear (15) Thrust plate (16) Torque for the Idler shaft's retaining bolts ... 55 10 N m (41 7 lb ft) (17) (18) Idler gear assembly (C) Diameter of new idler shaft ... 63.500 0.013 mm (2.5000 0.0005 inch) Bore in the idler shaft's bearing after assembly ... 63.602 0.038 mm (2.5040 0.0015 inch) (D) Diameter of new oil pump idler shaft ... 34.943 0.013 mm (1.3757 0.0005 inch) Bore in the oil pump idler shaft's bearing after assembly ... 35.034 0.038 mm (1.3793 0.0015 inch) (E) Extension of the pin from the front of the oil pump idler shaft ... 3.048 mm (0.1200 inch) (F) Extension of dowel from the bottom of the oil pump's idler shaft ... 4.826 mm (0.1900 inch)Prior to assembly, lubricate the idler shaft, the bearing's bore, and the faces of thrust plate (15) with engine oil. Install the thrust plate with the oil groove side toward the idler gear. (19) Crankshaft gear (20) Oil pump idler gear (21) Thrust plate for the engine oil pump's idler gearDuring assembly, install the thrust plate with the oil groove side toward the idler gear. (22) Bolt for the oil pump's idler shaftPrior to assembly, apply 4C-9502 Gasket Sealant to the bolt threads and to the bearing face of the bolt. Torque for the oil pump's retaining bolt ... 55 10 N m (41 7 lb ft) (23) Oil pump drive gear (24) Torque for the oil pump drive gear's retaining bolt ... 55 10 N m (41 7 lb ft)