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R56 :: Drivetrain :: DIY Water Pump Replacement

R56 :: Drivetrain :: DIY Water Pump Replacement

  #101  
Old 04-22-2017, 01:01 PM
SmokeM
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Shredding my belt...

I hope someone can help me with a belt problem. For some reason, I'm shredding my belt. I'm on my second shredded belt. Only the furthest edge (maybe 2 ribs) away from the engine is getting shredded. I can't seem to find what's causing it.

The second install, I made sure everything was lined up correctly and it still happened.

I'm at my wits end with this crap.

HELP!
 
  #102  
Old 04-22-2017, 05:04 PM
son-of-mini
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I do not understand why this is happening. There has to be something catching the belt. When and if you put in another belt, keep the belt visible, and watch it as the engine runs. Wear eyewear protection.
 
  #103  
Old 04-23-2017, 07:54 AM
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I found the cause. Apparently, the belt looks to be too wide. The original measures 20 mm and the replacements (one from dealer the other from pepboys) measures about 22mm.

When installed, the belt looks like its properly seated however, the alternator pulley has a lip that pushes the belt towards the tire. When the belt spins, it hangs off the end of the compressor pulley which has the lip on the outside. It stretches and eventually breaks.

Now to find the proper belt.
 
  #104  
Old 04-24-2017, 10:26 AM
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What the numbers on the belt, see back a page for example:

https://www.northamericanmotoring.co...acement-4.html

Also are you on the stock pulleys or did someone change a part at some time?
 
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  #105  
Old 04-29-2017, 12:05 PM
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The NAPA part is
Micro-V 25

Part #: 060355 6PK903

It is a Gates belt. This is the 20mm belt required for a 2009 jcw (early model).

At least this is what mine required. How or why the dealer gave me a 22mm belt is beyond me. It is best to measure your old belt before ordering one.
 
  #106  
Old 04-29-2017, 12:12 PM
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BTW, you can use a pair of large vice grips to move the tensioner pulley. Just clamp it on the big nut and use a pipe over the vice handle (the one without the lock lever). The longer the pipe, the easier it is to move. Remove the torx screw holding the pipe to the grille and move the the pipe from the intercooler. You don't need to disconnect it where it attaches at the bottom. Just twist it out of the way. It will be tight but there is just enough room to get a finger down there to press the button to lock the tensioner in the up position. Just watch yourself and be careful!!!!
 
  #107  
Old 05-08-2017, 06:24 AM
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Thanks for the info and update.
 
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  #108  
Old 12-11-2018, 02:20 PM
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Update: The metal impellar water pumps from Febi are on hold right now, we are trying to still get them, as a back up we have them with a metal impeller through HT right now. All the others are still the composite impeller. Hold tight guys.

https://www.ecstuning.com/Search/Sit...h/11517648827/
 
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  #109  
Old 02-12-2019, 08:41 AM
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Update on the Graf one now comes with a metal impellar/metal housing and upgraded gasket and housing: "Click HERE to shop MINI Cooper Water Pumps"

Free shipping also. 11517550484 or 11517648827 are the same part numbers.

Pictures to be updated soon.
 
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