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Post by userix on Jun 6, 2015 3:59:33 GMT -5
I recently replaced my variator and clutch and after a single ride for a few hours, I noticed there is a ton of black-brownish dust under the variator plate and all over the weights. The belt is in good condition and the variator is fine as well. I don't really see any dust outside of the variator. The rest of the CVT area is clean. What is causing this massive build up of dust only within the variator? The weights are still in good condition as well. No plastic is worn off.  |
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Post by geh3333 on Jun 6, 2015 5:42:22 GMT -5
I recently replaced my variator and clutch and after a single ride for a few hours, I noticed there is a ton of black-brownish dust under the variator plate and all over the weights. The belt is in good condition and the variator is fine as well. I don't really see any dust outside of the variator. The rest of the CVT area is clean. What is causing this massive build up of dust only within the variator? The weights are still in good condition as well. No plastic is worn off. Wow , that was clean before the run ? That's a lot of dirt/dust. |
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Post by toddmaples on Jun 6, 2015 7:24:15 GMT -5
I recently replaced my variator and clutch and after a single ride for a few hours, I noticed there is a ton of black-brownish dust under the variator plate and all over the weights. The belt is in good condition and the variator is fine as well. I don't really see any dust outside of the variator. The rest of the CVT area is clean. What is causing this massive build up of dust only within the variator? The weights are still in good condition as well. No plastic is worn off. Wow , that was clean before the run ? That's a lot of dirt/dust. I agree that is excessive. If no visible wear has occured you can safely bet everything is good. Try blowing out the entire cvt with compressed air, lube the rollers with graphite, reassemble and try 'er again... Edit: Forgot to specify what to use the graphite on. |
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Post by lain on Jun 6, 2015 8:32:33 GMT -5
I had this happen when my variator slides were worn and dry. Check around for where there may be belt rubbing. That's a lot for one ride though. Slide dust can also look like belt dust when they are old and worn.
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Post by userix on Jun 6, 2015 10:53:07 GMT -5
The weights are actually brand new. Yeah and this happened after just one ride. I actually did blow out the cvt with some compressed air too. The slides do look fine. No abnormal wear on any of the surfaces. The belt doesn't look like anything is rubbing against it either. Could an aggressive hit clutch do this? But then it wouldn't make sense why clutch pad dust only collects within the variator slide area and not around the clutch assembly itself.
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Post by lain on Jun 6, 2015 11:28:10 GMT -5
The weights are actually brand new. Yeah and this happened after just one ride. I actually did blow out the cvt with some compressed air too. The slides do look fine. No abnormal wear on any of the surfaces. The belt doesn't look like anything is rubbing against it either. Could an aggressive hit clutch do this? But then it wouldn't make sense why clutch pad dust only collects within the variator slide area and not around the clutch assembly itself. Even when the dust originates from the variator it would still get flung out. Why is your scoot defying physics? is there a goblin on the crankrod sucking in the dust? |
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Post by userix on Jun 6, 2015 15:54:31 GMT -5
The weights are actually brand new. Yeah and this happened after just one ride. I actually did blow out the cvt with some compressed air too. The slides do look fine. No abnormal wear on any of the surfaces. The belt doesn't look like anything is rubbing against it either. Could an aggressive hit clutch do this? But then it wouldn't make sense why clutch pad dust only collects within the variator slide area and not around the clutch assembly itself. Even when the dust originates from the variator it would still get flung out. Why is your scoot defying physics? is there a goblin on the crankrod sucking in the dust? Lol. That is true. I have no idea why so much dust gathers within the variator. I can't figure it out! There nothing in the variator that can generate this much dust in just one ride. It boggles my mind |
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Post by JerryScript on Jun 6, 2015 17:11:41 GMT -5
Does your CVT cover have a filter, and if so have you modified it?
There is usually an exhaust hole at the rear of the CVT, if you have one is it clogged?
Only way to check belt wear over such a short time frame is with a micrometer. It is possible you got an older belt that is dried out, so keep an eye on it.
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Post by userix on Jun 6, 2015 17:33:03 GMT -5
Wow , that was clean before the run ? That's a lot of dirt/dust. I agree that is excessive. If no visible wear has occured you can safely bet everything is good. Try blowing out the entire cvt with compressed air, lube the rollers with graphite, reassemble and try 'er again... Edit: Forgot to specify what to use the graphite on. I actually have slider weights. Do I need to use graphite on them too? I never used graphite in the past and never had any problems with the variator. |
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Post by userix on Jun 6, 2015 17:50:08 GMT -5
Does your CVT cover have a filter, and if so have you modified it? There is usually an exhaust hole at the rear of the CVT, if you have one is it clogged? Only way to check belt wear over such a short time frame is with a micrometer. It is possible you got an older belt that is dried out, so keep an eye on it. Filter is what was on stock cover and what I always ran in the past without issues. The exhaust port near the back of the cover is not clogged either. I wish there was a way to tell what the dust/powder is (belt, clutch pads, etc). Based on the color, my guess is belt or the clutch pads on the clutch assembly. But the underlying issue that doesn't make sense is why all the dust is building up in the variator cover and not flinged all over the rest of the CVT inside. The belt is a Gates Powerlink bought brand new and installed just a couple months ago. |
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Post by JerryScript on Jun 6, 2015 21:58:01 GMT -5
It's not the flinging action that matters, it's the air currents inside the CVT that determine where dust will accumulate.
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Post by lain on Jun 6, 2015 23:32:00 GMT -5
I can't think of a possible channel of air that would create a vacuum pocket in the variator that would not also flow through the variator to other parts.
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Post by geh3333 on Jun 7, 2015 3:08:59 GMT -5
Was that variator coated with the black Teflon ? If so , that is "somewhat" normal. The Teflon coating in many of the cheap performance variators dose not last what so ever. It is suppose to help the rollers and sliders move , but it just disintegrates within miles. If it didn't have the coating , I'm not sure where it came from .
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Post by toddmaples on Jun 8, 2015 8:16:25 GMT -5
I agree that is excessive. If no visible wear has occured you can safely bet everything is good. Try blowing out the entire cvt with compressed air, lube the rollers with graphite, reassemble and try 'er again... Edit: Forgot to specify what to use the graphite on. I actually have slider weights. Do I need to use graphite on them too? I never used graphite in the past and never had any problems with the variator. Rollers require less lubrication (graphite) than sliders, but its always a good idea to put a small amount on each roller prior to assembly. |
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Post by geh3333 on Jun 8, 2015 8:23:48 GMT -5
Another good idea is not to buy avariator with the Teflon coating. It seems as if most of the more expensive variators don't have the coating. I had one put out so much dust that it jammed the boss inside the variator. I had to pound the boss out of the variator !!
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