VALVES, CAMSHAFT, AND TIMING GEARS (CONT)

VALVES, CAMSHAFT, AND TIMING GEARS (CONT) - TM-5-4320-300-14_459

TM-5-4320-300-14 Pump Centrifugal Self-Priming Gasoline Engine Driven; 6-Inch 1500 GPM Capacity At 60 Foot Head Manual
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TM 5-4320-300-14 6-9. VALVES, CAMSHAFT, AND TIMING GEARS (CONT) Location/Item Action Remarks 64. Gear retain- Wedge a clean rag between gears at opposite ing nuts end. Torque nuts to 300 to 325 ft lb (407 to 441 N.m). 65. Balance pulley Torque nuts to 300 to 325 ft lb (407 to retaining nuts 441 N.m). 66. Retainer Install retainer plates and weights on gears. plates and Install mounting bolts and lockwashers. weights Torque bolts to 35 to 39 ft lb (47 to 53 N.m). 67. Clearance Check clearance on both shafts. It should be between thrust 0.005 to 0.015 inch (0.127 to 0.381 mm) washers and with new parts, or a maximum of 0.010 inch gears (0.4826 mm) with used parts. 68. Backlash be- Check backlash. It should be 0.003 to 0.005 tween camshaft inch (0.0762 to 0.127 mm) with new gears, and balance or a maximum of 0.007 inch (0.1778 mm) shaft gears with used gears. 69. Backlash be- Check backlash. It should be 0.003 to 0.005 tween cam- inch (0.0762 to 0.127 mm) with new gears, shaft gear and or a maximum of 0.007 inch (0.1778 mm) idler gear with used gears. 6-76

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