7.90 with Polar OD - Belt change

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7.90 with Polar OD - Belt change

Postby drace69 » Wed Jun 13, 2018 8:51 am

Guys -

wondering aprox how many runs before having to change belts.

Thanks for any info.
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Re: 7.90 with Polar OD - Belt change

Postby Pool Man » Wed Jun 13, 2018 9:02 pm

When you start having problems or you ET falls off. I have heard folks getting anywhere from 5 runs to a whole year out of them. My take is the more time you spend taking care of the belt the more it will last. We would usually get 50-75 runs our of a belt before we changed it.
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Re: 7.90 with Polar OD - Belt change

Postby Lenny5160 » Fri Jun 15, 2018 11:44 am

Pool Man wrote:When you start having problems or you ET falls off. I have heard folks getting anywhere from 5 runs to a whole year out of them. My take is the more time you spend taking care of the belt the more it will last. We would usually get 50-75 runs our of a belt before we changed it.


Could you expand a little bit on 'taking care of the belt'? Also, how do you know when it is time to change it?
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Re: 7.90 with Polar OD - Belt change

Postby sprintb2 » Fri Jun 15, 2018 12:41 pm

I used to look at my overdrive percentage at the finish line. A worn belt would show a lower over percent. I used to change at 3-4% fall off from a new belt.
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Re: 7.90 with Polar OD - Belt change

Postby Pool Man » Sat Jun 16, 2018 11:55 am

Sprint is right. Or if you do not want to do that you can look at how far it has dropped into the rear sheave from when it was new. Some folks measure the width and replace based on that.

Taking care of the belt would be proper alignment, cleaning, sheave conditions
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