Question about 2001 Isuzu Trooper

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Isuzu Trooper V6 2001 multi rib belt adjustment

How do I change and adjust tension on the multi rib belt (a/c alternator etc.) for the above vehicle

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Find a diagram like this one:

http://autorepair.about.com/library/images/bl765lib.htm

Note the adjuster locations for the belt in question (There are two ribbed belts on my engine and probably on yours- one for AC one for alternator)
Loosen the lock nut. Turn the adjuster bolt to tension and tighten the locknut. The tough part is getting the tension right. You should be able to deflect the belt about 3/8 to 1/2 inch between pulleys with moderate finger pressure. DO NOT OVER-TENSION!!! If your belt has 50,000+ miles on it, replace it. Don't try to save a buck here.

Posted on Apr 05, 2009

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First, if you're serious about car repair, get the shop manual (helminc.com). Not cheap, but cheaper than ruining your engine.

Second, unless you are confident in your mechanical abilities and / or are willing to use your vehicle as training, leave major work to the pros. A good mechanic is like gold, and just as hard to find.

Third, you don't really adjust the tension. There is a spring-loaded idler that puts just the right amount of tension on the belt. Using the proper tool, you lever the idler to take the tension out and slip the belt off the other pullies. Then take the new belt and rout it just like the old one, lever the idler again, then slowly release it back against the belt to take out the slack.

Piece of cake...

Posted on Mar 10, 2009

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See Figures 1 and 2


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