Drivetrain (Cooper S) MINI Cooper S (R53) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

Drivetrain Belt tensioner rattle? (video inside)

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Old Feb 8, 2013 | 11:22 PM
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Belt tensioner rattle? (video inside)

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hi would like to ask if someone can help me distinguish the problem in my car? i'm not sure if i need to change the belt, or the idler pulley. i changed my pulley to 17%, ati damper, belt tensioner and i also put dt tuned tensioner stopper (but it broke down not sure if that is the cause of the rattling). the "tick sound", also is that normal that the guide in changing the belt is like bouncing a lot? you can also see in the video when i turned off my engine you can see that the hole in the guide is almost half or more than half i think thanks
 

Last edited by scoopy; Feb 8, 2013 at 11:28 PM.
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Old Mar 1, 2013 | 06:46 AM
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update
i replaced my powerflex bushings in the belt tensioner with the stock one and the rattle is gone at the same time it made my car smooth to drive
 
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Old Mar 1, 2013 | 06:50 AM
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From: Under your car
Looks like it's time to replace your motor mount as well, or did you just do that and there's still oil on the frame rail?
 
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Old Mar 1, 2013 | 06:54 AM
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i already changed my engine mount together with the pulleys, belt, ati pulley and new belt tensioner and the bushings in the tensioner and dt stopper. for 8 months and almost 4k miles the bushings were shot and the dt stopper got broken. hehe how can i remove that stain there?
 
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Old Mar 1, 2013 | 07:01 AM
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Did you use a shorter belt when you changed the pulley? I was told the belt tensioner needed replaced when I replaced the supercharger and it should be replaced every couple years. Under heavy loads I could hear the belt slip prior to the replacement. I have no idea what is causing the tick sound. If you replace the belt check each pulley they should rotate with little or no noise, the tensioner pulley and the idler pulley. If these need replaced you would get a grinding noise not a tick.
 
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Old Mar 1, 2013 | 07:06 AM
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Originally Posted by scoopy
hehe how can i remove that stain there?
No sure. The paint is pretty thin there and there's no clear coat, so don't go medieval with the solvent.
 
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Old Mar 1, 2013 | 07:15 AM
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Dawn dish soap and water.
 
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Old Mar 1, 2013 | 07:17 AM
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yup i used a shorter belt. i checked everything and the pulley's are smooth. i just replaced the powerflex belt tensioner bushing with the stock one and the noise was gone. the powerflex bushings were shot and you can see and feel that the tensioner is moving. i will try the delrin from way
 
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Old Mar 1, 2013 | 07:18 AM
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i tried using it with a laundry soap and i notice that the paint is getting thinner so i stop hehe... will try dish soap
 
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