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

Drivetrain 15% to 17% Pulley Change

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Old Apr 17, 2014 | 06:30 PM
  #1  
purplehaze05mcs's Avatar
purplehaze05mcs
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15% to 17% Pulley Change

Can this change be done without lifting the engine again? Is there enough room to remove the existing 15% since a puller is no longer needed then slide in the 17%? Is it doable?
 
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Old Apr 17, 2014 | 06:36 PM
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Might be possible, not exactly sure, would be tight though. I ended up just replacing the crank pulley with a 2% larger. Close to the same, and it is/ was a weak part on the early 53's.

Nik
 
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Old Apr 17, 2014 | 07:41 PM
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It could be done, but would be much easier to just jack the engine up.
 
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Old Apr 17, 2014 | 08:39 PM
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Since I already have a 17%wmw that's why I was thinking if anybody has done it before. Also health wise I cannot do all those jacking up stuff anymore and also avoiding extra labor cost to install the smaller pulley.
 
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Old Apr 22, 2014 | 01:12 PM
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I switched from 15% to 19% without jacking the car up - not hard at all.
 
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