To maximize the engine performance, inspect the belts for wear and for cracking. Replace belts that are worn or damaged.
For applications that require multiple drive belts, replace the belts in matched sets. Replacing only one belt of a matched set will cause the new belt to carry more load because the older belt is stretched. The additional load on the new belt could cause the new belt to break.
If the belts are too loose, vibration causes unnecessary wear on the belts and pulleys. Loose belts may slip enough to cause overheating.
To check accurately the belt tension, a suitable gauge should be used.
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| Illustration 1 | g03716511 |
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Typical example (1) 144-0235 Belt Tension Gauge | |
Fit the gauge (1) at the center of the longest free length and check the tension. The correct tension is
If twin belts are installed, check and adjust the tension on both belts.
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| Illustration 2 | g03716557 |
- Loosen the alternator pivot bolt (2).
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Illustration 3 g03716558 - loosen the link bolt (3). Move the alternator in order to increase or decrease the belt tension. Tighten the alternator pivot bolt and the link bolt to
22 N·m (16 lb ft) . (1).
Refer to the Disassembly and Assembly Manual for the installation procedure and the removal procedure for the belt.