Jeep Wagoneer/Commando/Cherokee 1957-1983 Repair Information

Belts

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INSPECTION



See Figures 1 through 5

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Fig. Fig. 1: There are typically 3 types of accessory drive belts found on vehicles today



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Fig. Fig. 2: An example of a healthy drive belt



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Fig. Fig. 3: Deep cracks in this belt will cause flex, building up heat that will eventually lead to belt failure



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Fig. Fig. 4: The cover of this belt is worn, exposing the critical reinforcing cords to excessive wear



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Fig. Fig. 5: Installing too wide a belt can result in serious belt wear and/or breakage

Inspect the belts for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. All worn or damaged drive belts should be replaced immediately. It is best to replace all drive belts at one time, as a preventive maintenance measure, during this service operation.

ADJUSTING



See Figure 6

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Fig. Fig. 6: To remove belts or adjust belt tension, first loosen the component's mounting and adjusting bolts slightly

3 / 8 to 1 / 2 inch. Some long V-belts and most serpentine belts have idler pulleys which are used for adjusting purposes. Just loosen the idler pulley and move it to take up tension on the belt.

Belts are normally adjusted by loosening the bolts of the accessory being driven and moving that accessory on its pivot points until the proper tension is applied to the belt. The accessory is held in this position while the bolts are tightened. To determine proper belt tension, you can purchase a belt tension gauge or simply use the deflection method. To determine deflection, press inward on the belt at the mid-point of its longest straight run. The belt should deflect (move inward)

REMOVAL & INSTALLATION



See Figures 7 through 11

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Fig. Fig. 7: Push the component toward the engine and slip off the belt



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Fig. Fig. 8: Slip the new belt over the pulley



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Fig. Fig. 9: Pull the component outward to increase belt tension, then tighten the mounting bolts



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Fig. Fig. 10: Measuring belt deflection using a ruler and a straight edge



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Fig. Fig. 11: Some pulleys have a rectangular slot to aid in moving the accessories to be tightened

To remove a drive belt, simply loosen the accessory being driven and move it on its pivot point to free the belt. Then, remove the belt. If an idler pulley is used, it is often necessary to loosen the idler pulley, only to provide enough slack the remove the belt.

It is important to note however, that on engines with many driven accessories, several or all of the belts may have to be removed to get at the one to be replaced.

 
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