Hyundai Coupes/Sedans 1986-1993 Repair Guide

Accessory Drive Belts

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INSPECTION



See Figures 1 through 5

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.



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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

See Figures 6 through 17



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Fig. Fig. 6: Common belt tension measuring devices



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Fig. Fig. 7: Drive belt arrangement-Excel and Scoupe



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Fig. Fig. 8: Drive belt arrangement-Elantra and 2.0L engine equipped Sonata



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Fig. Fig. 9: Drive belt arrangement-Sonata V6

It is a good idea, therefore, to visually inspect the belts regularly and replace them, routinely, every two to three years.

ADJUSTING



Except Sonata V6

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. Some models also have belt tension adjusting bolts that are used to take up any slack in 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 midpoint of its longest straight run. The belt should deflect (move inward) 0.35-0.43 in. (9-11mm). 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.



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Fig. Fig. 10: To adjust the belt tension or to replace the belts, first loosen the component's mounting and adjusting bolts slightly



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Fig. Fig. 11: Pull outward on the component and tighten the mounting and adjusting bolts



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Fig. Fig. 12: To remove the belt, push the component inward and remove the belt



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Fig. Fig. 13: Slip a new belt over the pulley, do not use prying tools to get the belt on



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Fig. Fig. 14: Measuring the belt's deflection

Sonata V6
ALTERNATOR AND POWER STEERING PUMP BELT

To increase the tension on the belt, first loosen the power steering nut pulley locknut. Then, with the proper size wrench, turn the adjusting bolt CLOCKWISE to loosen the pulley (this a left-hand threaded bolt). Move the tensioner pulley to tension the belt. Once the belt is tensioned, position the adjusting bolt back to the far side of the recess in the tensioner pulley mounting bracket and tighten the locknut to 11 ft. lbs. (15 Nm).

AIR CONDITIONER BELT

First loosen the tensioner pulley bolt that is labeled A in the accompanying illustration. Next, turn adjuster bolt B to adjust the belt deflection to 0.177-0.216 in. (4.5-5.5mm). Once the belt is tensioned, tighten bolt A and check the tension again after the bolt is tight. Crank the engine a few times and recheck the belt tension.



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Fig. Fig. 15: Alternator and power steering belt adjustment on the Sonata V6



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Fig. Fig. 16: Alternator and power steering belt adjusting bolt on the Sonata V6. This bolt has left hand threads, so turn it CLOCKWISE to loosen it



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Fig. Fig. 17: Air conditioning compressor belt adjustment on the Sonata V6

REMOVAL & INSTALLATION



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 only necessary to loosen the idler pulley 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 replaced.

 
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