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

Drivetrain HELP!!! crank pulley got torn off

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Old Sep 4, 2006 | 06:21 PM
  #26  
SumWon's Avatar
SumWon
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Looks like another reason to replace those pre Jan '05 dampeners with the new style. I replaced mine this spring for the weight reduction, but it looks like it may have been the right call for more than one reason. Sorry for your trouble man. I threw a belt buzzing around town and that was a big enough pain to change in a parking lot, would hate to have done the dampener too! Glad you made it to the drive.
 
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Old Sep 4, 2006 | 07:14 PM
  #27  
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norm03s
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I have a late 04 crank pulley you can have cheap.
PM me if interested.
 
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Old Sep 4, 2006 | 07:52 PM
  #28  
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The best thing is to go the new OEM crank pulley, post Jan 05. Next is to go to a same size or oversized crank pulley. Do not go to an pre-05 OEM. A lot of people are having noise issues and other with them. I am changing mine next week. No offense to anyone offering crank pulleys that are exactly the same in design, as the one that just failed.

Bomboasy
 
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Old Sep 4, 2006 | 07:55 PM
  #29  
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Originally Posted by J Propane
There's a lot of black dust around there in the picture. I would make sure everything is lined-up properly (re: SC pulley). This may or may not have been a factor in the squealing.
all that black dust is caused by 2 blown cv joints. (way too many donuts one night)

thanks for all the offers on the crank pulley, i have to wait on that for now. i think i should just start savin for a rebuild. im pretty sure i f***ed up some internal components and what not.
 
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Old Sep 4, 2006 | 08:19 PM
  #30  
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Dontcha think that crank pulley just torqued itself in half? From the pictures it could even have been cracked for some time. Hard to tell. I don't know if the tensioner could come down and force that pulley to shear in half like it did. Maybe it could. A frozen pulley or idler would chew up the belt, but the crank pulley should have survived that.

One of our clubbers was drag racing at a local track and lost the tensioner/idler pulley. It chewed itself up and the belt. But I don't think it did the crank pulley.

Later, I'm going outside with a flashlight and inspect my '02.
 
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Old Sep 5, 2006 | 11:13 AM
  #31  
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i have 2% alta pulley for sale in market place.
 
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Old Sep 5, 2006 | 02:09 PM
  #32  
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Kalbone,

Just so I understand. You believe that your original serpentine belt with 87k miles blew, gathering underneath and causing your crankcase pulley to tear itself apart. Said belt had been "crying out for help" for about 9 months prior to self destruction. All seems ok in the tensioner and sc pulley areas. Need to replace belt and crank pulley, and maybe upgrade to a smaller pulley in the process, as well as an updated belt tensioner pulley?

I'll be replacing my belt at 60k.
 
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Old Sep 5, 2006 | 03:59 PM
  #33  
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My car has started squealing when starting it after its been off for a long time, for example over night. It squeals for about 1min or so. I never had this before, it occured after changing to my Alta 15% SC Pulley but I never got the squealing except for a week or so after the install. What should I check to see if everything is ok?
 
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Old Sep 5, 2006 | 05:39 PM
  #34  
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Seems to me a great time to upgrade to an M62 SC or Alta turbo/twin charge in addition to the oversize crank pulley!!

Go ALL the way if you have to.

Great reason for some upgrades.
 
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Old Sep 5, 2006 | 06:55 PM
  #35  
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From: Marsala, Sicily
Originally Posted by MGCMAN
Kalbone,

Just so I understand. You believe that your original serpentine belt with 87k miles blew, gathering underneath and causing your crankcase pulley to tear itself apart. Said belt had been "crying out for help" for about 9 months prior to self destruction. All seems ok in the tensioner and sc pulley areas. Need to replace belt and crank pulley, and maybe upgrade to a smaller pulley in the process, as well as an updated belt tensioner pulley?

I'll be replacing my belt at 60k.
That's what I told Kalbone...Hopefully that's all it is. I pulled the shreds of tangled mess out. It was coiled in the SC, alt and crank pulleys. I coulnd't spin the SC pulley...but at the time, I wasn't paying attention and we were just surveying the damage. Not to step on your Topic Kalbone.........
 
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Old Sep 5, 2006 | 08:38 PM
  #36  
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Kelvin, you need to get a new crank pulley no matter what else may be wrong. Start there, see if you can free up the SC and go from there. There maybe nothing else wrong with your motor. Does your tensioner assy look OK? I have a spare.
 
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Old Sep 5, 2006 | 10:46 PM
  #37  
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Originally Posted by ToBFree
...One of our clubbers was drag racing at a local track and lost the tensioner/idler pulley....
very interesting...
-glen
 
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Old Sep 6, 2006 | 07:21 AM
  #38  
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Originally Posted by ToBFree
One of our clubbers was drag racing at a local track and lost the tensioner/idler pulley
That is why I put an aftermarket tensioner stop on mine this spring when I replaced the dampener. They are cheap insurance against damage during a belt failure. If I hadn't, I am sure things would have been much worse when I threw mine.
 
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Old Sep 6, 2006 | 04:39 PM
  #39  
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i just soiled my pants . all will be cool with it?
 
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Old Sep 6, 2006 | 04:40 PM
  #40  
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help

:impatient
Originally Posted by SumWon
That is why I put an aftermarket tensioner stop on mine this spring when I replaced the dampener. They are cheap insurance against damage during a belt failure. If I hadn't, I am sure things would have been much worse when I threw mine.
ok... i'll bite ; where do i get a tensioner stop?
 

Last edited by herbie hind; Sep 6, 2006 at 04:43 PM. Reason: adding more
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Old Sep 6, 2006 | 05:44 PM
  #41  
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Originally Posted by herbie hind
:impatientok... i'll bite ; where do i get a tensioner stop?
I used the GT Tuning tesioner stop. Here is a link to their site:

http://www.gtt.uk.com/parts3.asp

There are others that sell stops, MyMINI is one:

http://www.myminiparts.com/proddetai...prod=TSB&cat=7

Here is a NAM thread discussing them including some homemade products:

https://www.northamericanmotoring.co...tensioner+stop

Hope that helps.
 
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Old Sep 6, 2006 | 08:35 PM
  #42  
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Originally Posted by kalbone
the belt has been squealing for almost 9months, but ive been lazy to replace it. and this is what i get for not taking care of my MINI
not only that, but your engine bay looks a bit rusty. maybe clean it with wd40?
 
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