Belt Size

[OneTimeUser]

I have a Super 30 series driven clutch (great improvement by the way) on a stage one Tillotson 212--Nibbi 24mm straight pipe with screw on muffler.

Problems is that the shortest belt 27 1/32" (Comet 203589, generic 5959) is just a tad too long. This keeps my CVT from reaching its max gear (belt) ratio and, I think, robs me of some top end.

The housing for my driven clutch on my Fox cart is welded to to frame and not adjustable.

So, I'm thinking of taking up some slack by installing a spinning bushing (like the brass ones on the regular CVTs. The Super 30 does not come with a bushing.

Anybody have any ideas/experience with such a problem? I can machine a bushing of most any material and any thickness to take up extra belt slack.

Put on you thinking cap please. Thanks in advance

 

[Whitetrashrocker]

Are you referring to the brass bushing that goes on the shaft of the cvt?
If so, all that does is make the belt tighter at idle. Once the clutch starts to engage, the belt rises up. That bushing has nothing to do with belt length.

Is your clutch opening all the way?

Or are you talking about the secondary driven pulley.

Give us a pic we can look at man.

 

[OneTimeUser]

Yep, Bad idea that won't work. The problem is that the distance between my driver and driven pulley shafts is just a tad too short for the smallest belt I ca find. My driven pulley is attached via weld to the frame. I don't have a backing plate that holds both shafts.

I'm thinking now of moving the motor a bit further up to make the distance between pulley shafts greater.

 

[panchothedog]

Yep, Bad idea that won't work. The problem is that the distance between my driver and driven pulley shafts is just a tad too short for the smallest belt I ca find. My driven pulley is attached via weld to the frame. I don't have a backing plate that holds both shafts.

I'm thinking now of moving the motor a bit further up to make the distance between pulley shafts greater.

Yes, that would be the obvious ( and easiest ) solution. Is the motor mount plate slotted so you can do that?

 

[Whitetrashrocker]

Depending on how the cvt is mounted, one could put spacers under the engine if slots arent available.

But alas, OTU won't give us a pic.

 

[panchothedog]

A good 3/8" drill bit and a dremel tool with the good cutting wheels and I've made, and or lengthened my own.