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  #1  
Old December 13th, 2017, 13:12
blu3fan's Avatar
blu3fan blu3fan is offline
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Im losing my mind. belt sqeak

yesterday I changed the serpentine belt.
from the stock original belt.
to a new one.
Now it sqeaks. not at idle. anything gas and its squealing.
tried tightening.
tried loosening.
tried putting belt grease on it.
nothing works.

I read online I might have put it on backwards.
but theres a grooved side and a flat side. cannot see there being a right and wrong direction... unless im wrong..

ideas ? or just buy another belt ?

92 xj 4.0

Last edited by blu3fan; December 13th, 2017 at 13:32.
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  #2  
Old December 13th, 2017, 13:59
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deesiexj deesiexj is offline
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Re: Im losing my mind. belt sqeak

I've seen in the past that glazed pulleys can cause a belt to make noise where it shouldn't. Also make sure you don't have a bad bearing anywhere causing problems, spinning each pulley by hand with the belt off will let you know if there's any excess drag anywhere.

I'd double check and make sure that everything is installed properly. I've accidentally forgotten to re-install the spacer for the idler pulley before, and nothing I did helped until I found that spacer in my tool box...
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  #3  
Old December 13th, 2017, 14:31
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Re: Im losing my mind. belt sqeak

I know for a fact that I am missing the black L bracket for either the alternator
I do not believe it effects space front/back. I think its side to side.
here is the pic of which it is.
But it never squealed with the old belt.
wanted to mention

No drag on any components.
Squeal comes from ac side.
its the belt. plain and simple.
trying to figure out if due to mis-alignment. or just bad belt now.
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  #4  
Old December 13th, 2017, 16:19
lawsoncl lawsoncl is offline
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Re: Im losing my mind. belt sqeak

Low quality belt? Gates is usually my got-o for quality belts. Belt grease always seems to make it worse. Break out the long ruler and make sure everything is well lined up.
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  #5  
Old December 13th, 2017, 16:26
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Re: Im losing my mind. belt sqeak

Quote:
Originally Posted by lawsoncl View Post
Low quality belt? Gates is usually my got-o for quality belts. Belt grease always seems to make it worse. Break out the long ruler and make sure everything is well lined up.

I bought the $7 belt from rock auto. so it could be just bad belt.
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  #6  
Old December 13th, 2017, 16:50
lawsoncl lawsoncl is offline
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Re: Im losing my mind. belt sqeak

Quote:
Originally Posted by blu3fan View Post
I bought the $7 belt from rock auto. so it could be just bad belt.

Hmm. I think that RoadMax brand is actually made by Gates. Is the tension correct? Yeah I know it's a bitch to swap the belt and adjust on the earlier Jeeps.
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  #7  
Old December 13th, 2017, 17:10
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four_shot four_shot is offline
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Re: Im losing my mind. belt sqeak

Double check belt routing.

Upon further thought, That bracket may affect pulley alignment.
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  #8  
Old December 13th, 2017, 17:23
BALTANAKT BALTANAKT is offline
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Re: Im losing my mind. belt sqeak

Not likely, but you could check if the crank is walking forwards/backwards.

I had a similar problem I chased for a week and it ended up being crank walk.

How tight is the belt? How much can you move it up and down?
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  #9  
Old December 13th, 2017, 17:29
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Re: Im losing my mind. belt sqeak

Crank is not walking.
This issue started only by changing the belt.
Old belt was just the original belt.
belt deflection is 1/2 inch up and down.
been working on cars a long time.
Its not too loose.


Four shot. You could be right. the old belt could have been so old that it warped around the misalignment without sqeaking.
Ill dig up that bracket this weekend and re-attach it. until then I can just squeal around town lol

and yes. it is the roadmax belt.

Last edited by blu3fan; December 13th, 2017 at 17:32.
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  #10  
Old December 13th, 2017, 17:55
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kenny811 kenny811 is offline
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Im losing my mind. belt sqeak

Quote:
Originally Posted by blu3fan View Post
yesterday I changed the serpentine belt.
from the stock original belt.
to a new one.
Now it sqeaks. not at idle. anything gas and its squealing.
tried tightening.
tried loosening.
tried putting belt grease on it.
nothing works.

I read online I might have put it on backwards.
but theres a grooved side and a flat side. cannot see there being a right and wrong direction... unless im wrong..

ideas ? or just buy another belt ?

92 xj 4.0


Mine did it, it was the crank pully rubbing on the timing chain cover!!


Sent from my iPhone using Tapatalk
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  #11  
Old December 13th, 2017, 20:18
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blu3fan blu3fan is offline
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Re: Im losing my mind. belt sqeak

So.
I double checked.
And used my brains before I did any work.
the L bracket.
does nothing


as you can see it only supports the alternator.


Thinking about getting a new belt and seeing what happens.
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  #12  
Old December 13th, 2017, 20:27
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blu3fan blu3fan is offline
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Re: Im losing my mind. belt sqeak

Onto something.
Went and looked.
belt shows wear signs on it. on the flat side.
something is rubbing somewhere.
Now the hunt is on. gotta wait til daylight.
could be timing cover as said above.
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  #13  
Old December 14th, 2017, 08:43
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blu3fan blu3fan is offline
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Re: Im losing my mind. belt sqeak

Hats off to whoever said use. Straight edge. Power steering pump pulley is not fully seated on the unit.
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  #14  
Old December 14th, 2017, 17:35
lawsoncl lawsoncl is offline
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Re: Im losing my mind. belt sqeak

Quote:
Originally Posted by blu3fan View Post
Hats off to whoever said use. Straight edge. Power steering pump pulley is not fully seated on the unit.
You probably know this already, but just in case. Thread a long bolt into the pulley, then use a nut on the bolt to push against the pulley. That minimizes the risk of pulling the threads out of the pulley shaft. Getting the pulley really warm helps - last one I installed spent some time in the oven at 200*F first.
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  #15  
Old December 14th, 2017, 20:55
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blu3fan blu3fan is offline
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Re: Im losing my mind. belt sqeak

Quote:
Originally Posted by lawsoncl View Post
You probably know this already, but just in case. Thread a long bolt into the pulley, then use a nut on the bolt to push against the pulley. That minimizes the risk of pulling the threads out of the pulley shaft. Getting the pulley really warm helps - last one I installed spent some time in the oven at 200*F first.
the correct tool is the only option for me. the pulley installer tool.

https://www.autozone.com/loan-a-tool...uestid=6201315
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