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Discussion Starter · #1 ·
Hey guys having trouble with my serpentine belt, just swapped it out and everytime I turn the car over the belt slips off the tensioner pulley, any ideas guys? cheers.
 

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If you have a pre 2010 with a manual tensioner, have you tightened it up? The deflection should be 10kg per mm on the longest length, so roughly a mm deflection if you push hard with your thumb.

If a later model with an automatic tensioner that's already set.

The other possiblity is the pulley on the alternator having slipped out of line.
 

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Discussion Starter · #5 ·
From memory, yes a fair bit of movement. These tensioners sometimes lose their strength, is the belt super tight when on?
No the belt isn't super tight, I hope I'm not understating the amount of play in the tensioner because it's literally moving up down and in out, cheers for the reply
 

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You can actually buy a couple of bearings and knock the old ones out of the pulley. They are SKF 6301 - 2RS1 or 6301 2RSH and only a few dollars each (you need 2)
 
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