Fan belt

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philsparks
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Fan belt

Post by philsparks » Fri Jun 16, 2017 9:23 am

Hi what's is the correct size belt for my 1641 twin port with dynamo? Is it 10mm x 900mm and should it be toothed? Thanks phil

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readyboy61
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Re: Fan belt

Post by readyboy61 » Fri Jun 16, 2017 11:08 am

Fixing VWs in my sleep, im not the only one right?


Topic Author
philsparks
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Re: Fan belt

Post by philsparks » Fri Jun 16, 2017 11:10 am

Thanks for your help that looks like the business is will order a couple. Thanks Phil

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Doka Dave
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Re: Fan belt

Post by Doka Dave » Fri Jun 16, 2017 11:30 am

readyboy61 wrote:the best belt you can buy

http://www.machine7.com/product.php?xProd=2980
WHS!
Optibelt all the way.
Be careful though as different pulley wheel sizes and alternator/dynamo sizes can affect things quite a bit.
On my bay an 888mm belt is best and on my split a 900 or 905 fits better (can't remember which) and they are both the same on paper lol
Either way, Optibelt do a variety of sizes so should be fine and the quality is very good as it's a V belt.
Good luck!
DD
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ted698
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Re: Fan belt

Post by ted698 » Fri Jun 16, 2017 12:38 pm

Stock factory belt for Dynamo was 9.5 x 905 (pt no: 111 903 137D) - interesting that the Optibelt sold by M7 above is 11.5mm thickness instead of 9.5 x 912 - so must ride much higher in the pulleys - may have to try one of those as I'm running no shims currently to keep my belt tight enough and that's with a C&C 906 belt.....

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