Inspect the idler pu lley for nicks, cracks or any other type of damage. Spin the idler pulley to check for rough or noisy operation. Replace the idler pulley if any damage is found . Inspect the idler pulley shaft for grooves or galling. Replace the shaft or support bracket if any damage is found.… Read More »
Disassemble Rear Gear Train If the idler pulley mounting capscrew is covered by a dust shield, use a hammer and chisel to drive the dust shield out of the pulley. To ease removal, position the chisel on the side portion of the dust shield. Discard the old dust shield. A new dust shield will be… Read More »
Rear Gear Train NOTE: If replacing the idler pulley, it is recommended that the idler pulley assembly be removed to make sure the dust shield is properly installed. Remove the idler pulley support bracket mounting capscrews and remove the idler pulley assembly. Front Gear Train Remove the idler pulley mounting capscrew. Remove the idler pulley.… Read More »
Some front accessory drive configurations require an idler pulley to support the drive belt. The location of the idler pulley will vary depending on the application and front accessory drive configuration.
If removed, install the belt tensioner mounting bracket and mounting bracket capscrews. NOTE: Some belt tensioner mounting brackets use internal fasteners for clearance. Torque Value: 24 N•m [ 212 in-lb ] Install the belt tensioner and capscrew. Tighten the capscrew. Torque Value: 43 N•m [32 ft-lb]
Inspect the cooling fan drive belt for reuse. Refer to Procedure 008-002 in Section 8. Measure the clearance between the tensioner spring case and the tensioner arm to verify tensioner wear-out and uneven bearing wear. If the clearance at measurement point 5 exceeds 3 mm 10.12 in] at any point, the tensioner is damaged and… Read More »
Remove the capscrew and belt tensioner from the bracket. NOTE: Most belt tensioners are mounted to the water inlet connection. Some belt tensioners are mounted to a separate mounting bracket and use internal fasteners for clearance.
With the engine stopped and the belt installed, record the belt tension generated by the existing belt tensioner. Use belt tensioner gauge, Part Number ST-1293, to measure the tension in the drive belt. If the measurement is out of the specified range, replace only the belt and perform the tension test again. If a new… Read More »
Install the capscrews, water inlet connection, gasket, and rectangular sealing ring(s). Align the roll pins against the front face of the cylinder block and tighten the capscrews.
NOTE: If replacing the water inlet connection, it could be necessary to transfer coolant fitting(s) from the old water inlet connection to the new water inlet connection. Clean the water inlet connection and cylinder block mounting surface. Inspect the water inlet connection for damage. Replace the water inlet connection if any damage is found.