jruiz123
Scoot Junior
Love technical stuffs and making my hands dirty :)
Posts: 11
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Post by jruiz123 on Nov 15, 2020 20:12:42 GMT -5
I tried to buy racing pulley and drive face from different brand. One is Koso and the other is Project FI from thailand, and based on my observation, they are always noisier than stock, even using stock rollers and springs. Also tried using custom stock pulley(reangles) and it's make a high rpm sound on take off. Is there a way to minimize it? And what causes it? the design or other parts not fitting correctly?
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Post by tiny on Nov 15, 2020 22:03:48 GMT -5
I've got aftermarket Variators on all my 50's and none make any discernable nose difference from stock.
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Post by FrankenMech on Nov 15, 2020 23:08:23 GMT -5
No noise that I have found.
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Post by aeroxbud on Nov 16, 2020 16:37:20 GMT -5
I have had quite a few over the years. Never noticed any noise difference. What you might be experiencing is perhaps the variator is lighter than stock. So might spin up faster, even with stock weights.
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Post by Zino on Nov 16, 2020 18:49:14 GMT -5
no sound difference . With a properly installed aftermarket Unless you have belt slap which you can minimize by shimming or you tightened the nut down without slackening up the belt and the variator fan is rattling . It will be real loud and rattle and chew up your variator if you installed the nut wrong .
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jruiz123
Scoot Junior
Love technical stuffs and making my hands dirty :)
Posts: 11
|
Post by jruiz123 on Nov 17, 2020 2:39:15 GMT -5
I have had quite a few over the years. Never noticed any noise difference. What you might be experiencing is perhaps the variator is lighter than stock. So might spin up faster, even with stock weights. Yah, it could be possible. So should I add more weight to the rollers so that it will be balanced?
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jruiz123
Scoot Junior
Love technical stuffs and making my hands dirty :)
Posts: 11
|
Post by jruiz123 on Nov 17, 2020 2:40:22 GMT -5
no sound difference . With a properly installed aftermarket Unless you have belt slap which you can minimize by shimming or you tightened the nut down without slackening up the belt and the variator fan is rattling . It will be real loud and rattle and chew up your variator if you installed the nut wrong . So far there is no belt slap, as the belt is tight as it is idling. Only noise is when you gas a little bet on take off. there is a whining noise, like high rpm noise.
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Post by FrankenMech on Nov 17, 2020 4:18:18 GMT -5
Narrow belt causing slippage, maybe riding on the bushing rather than riding on the walls of the variator? Don't go messing with the angles on the faces of the variator or mismatching parts. Always run matching parts and don't even try changing angles unless you are VERY experienced.
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Post by aeroxbud on Nov 17, 2020 7:01:30 GMT -5
I have had quite a few over the years. Never noticed any noise difference. What you might be experiencing is perhaps the variator is lighter than stock. So might spin up faster, even with stock weights. Yah, it could be possible. So should I add more weight to the rollers so that it will be balanced? Might be worth trying. You could put a small piece of foil inside the rollers, say 0.25g to see.
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jruiz123
Scoot Junior
Love technical stuffs and making my hands dirty :)
Posts: 11
|
Post by jruiz123 on Nov 17, 2020 18:52:42 GMT -5
Narrow belt causing slippage, maybe riding on the bushing rather than riding on the walls of the variator? Don't go messing with the angles on the faces of the variator or mismatching parts. Always run matching parts and don't even try changing angles unless you are VERY experienced.
Im planning to trim my bushing, but dont have any idea on how much to be remove. Any suggestions or tips? I'm afraid i might trim it too much 😕
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Post by FrankenMech on Nov 17, 2020 21:26:51 GMT -5
Buy a nice unmodified variator, stock or aftermarket, and run it.
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