DailyDrivenTJ-Drive Belt Replacement

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5/19/2008

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Belt Replacment

Maintenance ◆◆◇◇ Medium

TJs have one belt that drives all pulleys for A/C compressor, fan clutch, power steering pump, water pump, and alternator. I haven't seen anyone losing the belt but if you do lose it, the jeep will become immobile.

As shown in the picture, if your belt have very large cracks and cracks running along the ribs on the belt, it is time a replacement.

Symptom It Fixed

Preventative maintenance

Required Supplies & Tools

Replacement Belt (Parts available at any major part store, about $20)

Wrench

Job Hours

40 minutes or less

Procedure

1. Memorize/Document/Take a pic of how the belt is routed. The owner's manual should show how this is done. If you still have stock radiator, it should have a sticker how it is routed as well.

2. As shown, loosen the pulley bolt. General location is shown in the first picture where the RED arrow is pointing.

3. Once the pulley bolt is loosened, loosen the pulley adjustment bolt to loosen the tension of the belt!

4. Pic on the left shows how step 3 works. When you tighten the bolt. The pulley base will be screwed in towards the top (head) of the bolt and vice versa. Try to remember where the pulley base is before start doing anything.

5. Once the tension is removed from the belt, it should be removed easily.

6. Inspect the pulley for any foreign objects and or damages. I found a small rock stuck between the grooves of the pulley. I don't know how it got there but it was stuck that I had to remove it with a flat head screw driver.

7. This is what the old belt looks like compared to the new.

8. Reroute the new belt into place.

9. Move the pulley so that it creates tension on the belt. Make sure the belt is seated correctly on all the pulleys. According the Factory Service Manual, the tension should be around 190 lbs. I used my hand and tried to push and pull the longest side of the belt and get about 1/2 inches of deflection. This will get you close. Do not create too much tension on the belt as it is turning a lot of expensive equipments under the hood and too much tension will damage them. Less tension will do no harm in a short term. This will usually cause noises from the belt. When noise is heard just go ahead and adjust the tension. One way to check the tension is to run A/C. The compressor will put more resistance to the pulley causing the belt to work harder. If there isn't enough tension on the belt, it will squeal.

If you have any questions or recommendations, please let me know.

Disclaimer

I tried my best to document as much as possible along with pictures. I hope you find them useful. However, do use the information provided here "as-is". DailyDrivenTJ.com or the author does not warrant or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, or process disclosed. Use the information at your own risk.

Written by Michael on 5.1.2006.

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1998 Jeep TJ Sport

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