BoneStock Posted May 26, 2012 Share Posted May 26, 2012 I have a 1991 with belt problem. I purchased a year ago and previous owner warned of belt problem. Belt was squeaking and replaced several times due to squeaking to no avail. Belt dressing works for a while. I had no problems until last week, I just let it squeek, but gave a liberal soaking and squeek free for a few days then frayed. I replaced belt with best quality belt and it frayed again a few days later? All pulleys seem to be in proper alignment and are tight. I do not see a belt tensioner. Any advice or assistance would be appreciated. Link to comment Share on other sites More sharing options...
dakal Posted May 26, 2012 Share Posted May 26, 2012 are there any rough places on any of the pullies? Link to comment Share on other sites More sharing options...
Backdraft Posted May 26, 2012 Share Posted May 26, 2012 Harmonic balancer going south? Link to comment Share on other sites More sharing options...
BoneStock Posted May 26, 2012 Author Share Posted May 26, 2012 No, pulleys all look good. I thought of the balancer but it is on tight, no wobble...? Link to comment Share on other sites More sharing options...
JeffN Posted May 26, 2012 Share Posted May 26, 2012 if it is too loose and flops around it can shred it, you adjust the power steering pump to tighten it. Link to comment Share on other sites More sharing options...
MJRemi Posted May 26, 2012 Share Posted May 26, 2012 There is a tension bolt beneath the P/S reservoir behind/below the pulley. Remove the air box and auxiliary fan for easy access to the bolt and to the anchor nut the bolt rides through. Test your belt tension or use the rough rule-of-thumb by twisting the belt at the long span between pulleys. 90 degrees is your goal. Less is too tight and past 90 is too loose. Also, clean all the grooved pulleys out with a wire brush or pick to get any rubber build-up. Link to comment Share on other sites More sharing options...
chastings Posted May 26, 2012 Share Posted May 26, 2012 ^^^^This! Link to comment Share on other sites More sharing options...
Jeep Driver Posted May 27, 2012 Share Posted May 27, 2012 Harmonic balancer.........replace it. Link to comment Share on other sites More sharing options...
64 Cheyenne Posted May 28, 2012 Share Posted May 28, 2012 Harmonic balancer.........replace it. I agree especially if there is any rubber sticking out the front or back. (must be smooth/flat) Link to comment Share on other sites More sharing options...
Exgrayxj Posted May 29, 2012 Share Posted May 29, 2012 Jeep10 had the exact same symptoms, and belt eating. It was the PS pump pulley not on quite far enough on a replacement pump done before he got the mj. Pay very good attention to the pulley alignment. Link to comment Share on other sites More sharing options...
BoneStock Posted May 30, 2012 Author Share Posted May 30, 2012 Thank you for the replies. All suggestions check out and new belt is going on day 2 without any trouble. Thank you again! Link to comment Share on other sites More sharing options...
BoneStock Posted May 30, 2012 Author Share Posted May 30, 2012 The belt is riding up on the balancer some now so I will replace balancer. My usual mechanic will not do this repair. What is going rate for this? Is it possible to do this without removing the bumper or too many other components? Any walk-thrus for this? Just pull balancer and replace? Size of bolt? Torque required? Any advice would be appreciated... Link to comment Share on other sites More sharing options...
carnuck Posted June 7, 2012 Share Posted June 7, 2012 It takes about an hour if you don't need a new front seal. Belt and 1 bolt plus pulling the rad to access it. miteaswell do the waterpump while you're in there if you do the seal. Link to comment Share on other sites More sharing options...
fitzworld Posted June 9, 2012 Share Posted June 9, 2012 Something is not aligned properly. Link to comment Share on other sites More sharing options...
BoneStock Posted June 14, 2012 Author Share Posted June 14, 2012 I called mechanic. He replaced balancer but unable to bolt it back on properly. He tells me that the threads on the crankshaft are damaged. He purchased another bolt but same. The alignment is one groove off. I think what he means is that the bolt is not gripping deep inside and so the balancer can not be properly tightened all the way down. Link to comment Share on other sites More sharing options...
Jeep Driver Posted June 14, 2012 Share Posted June 14, 2012 I don't trust mechanics. Oh boy. Link to comment Share on other sites More sharing options...
Jeep Driver Posted June 14, 2012 Share Posted June 14, 2012 I was waiting for someone else to comment....... I know full well what he did, he used the bolt to draw up the HB. Either the HB was not aligned or the bolt was cross threaded, either way he stripped the threads out. How's he gonna fix it? I know what I would do.......but then I'm not an animal that would have done what he did. You know if things aren't going well.......ya stop and have a smoke and come back to it in a few minutes....but no, some guys just plow ahead. Link to comment Share on other sites More sharing options...
BoneStock Posted July 10, 2012 Author Share Posted July 10, 2012 Wrong bolt to begin with...used brand new OEM replacement bolt from Jeep and all is fine. Thank you for the replies. I really need a camper top for '91 long bed? Link to comment Share on other sites More sharing options...
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