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Old 04-21-2011, 06:02 PM   #1
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my drivebelt misadventure

Hello,

Im Charl from Quebec,

Changing the drive belt was something I almost regretted doing myself but I got very lucky and managed to screw the pulley back in by miracle.

The new belt didnt want to fit .

Finally the only problem is the pulley doesnt turn anymore (photo). Im not sure if thatmatters or will fix itself. But I dont want to ever remove that pulley or drivebelt!

And I would say the belt is now a lot tighter than before.

Bye!
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Old 04-21-2011, 06:20 PM   #2
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That pulley needs to turn or you'll burn up your belt.

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Old 04-21-2011, 08:09 PM   #3
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There was a smell like melting rubber. Why that pulley had to stop working all of a sudden after 10 years...
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Old 04-21-2011, 08:18 PM   #4
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Did you adjust the tension of the belt? It sounds to me like you pulled the idler pulley off, put a new belt on, and then tried to put the pulley back on? Hell yes that would be a pain to say the least! What motor do you have? On the 4.0 motor, you adjust the belt tension by loosening the power steering bracket and backing off the long bolt under the pump. Once that is loose, you can swap your belt and tighten back up.
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Old 04-21-2011, 09:39 PM   #5
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On my 4.0L I have an automatic tensioner. You use a 1/2 inch ratchet or breaker bar to loosen it enough to remove and install the belt.
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Old 04-21-2011, 09:50 PM   #6
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Not sure when they changed to a tensioner, but in the pic above it looks like the idler is not moving, but the pulley above is. If it has a tensioner then he should replace the idler, or adjust the belt if he doesn't have a tensioner.
I wish mine had the tensioner, it's kind of a pain to adjust the belt.
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Old 04-21-2011, 10:03 PM   #7
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I just changed the belt on my 4 cyl 2.5 today and it was such a pain! I would say you need a new pulley
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Old 04-21-2011, 11:13 PM   #8
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Yeah on mine I have that pulley as well. It has the auto tensioner pulley and an idler pulley exactly like the one above.
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Old 04-21-2011, 11:53 PM   #9
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it looks like to me that the spacer is missing from behind the pulley?
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Old 04-22-2011, 04:47 AM   #10
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I think either I made the belt too tight by screwing the thing too much, or I lost a spacer like was mentionned.

If I driv under 2000 rpm it seems to be fine , no burning smell.

Yes its a tj 2001 2,5 L 4 cyl, there is not nice easy adjustable tensionner! You remove one pulley.

The new belt was extremely dificult to install even with the pulley off. Then imagine putting te pulley back!

i was sitting inside the engine for 2 hours.
Trying to fit a screw inside a bolt unable to see anything...

I will have to look into this again today.
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Old 04-22-2011, 07:57 AM   #11
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hey bud check out this link i think your over seeing the bolt to the tensioner
Manual belt tensioner question... missing tensioner bolt? - JeepForum.com
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Old 04-22-2011, 05:33 PM   #12
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Thank you for mentioning the Spacer, I found it on the ground. (on the left , photo 1). I would still be scratching my head .

The tensioner (photo 2) would be that long screw. So I think technically I wasnt supposed to actually remove the pulley, I would just need to untighten its screw then turn the tensioner screw that will move the whole pulley up and down as needed.

It sounds too good to work though.

So now the job is done, no more burning rubber smell. There was a funny squealing that would increase volume as I increase the RPM. So I simply untightened the belt a little bit , using the tensioner!

Bye until next time!
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