OSP SR Viper belt adjuster with float

[DT]

Ordered one for my 2014 Xf7000 that I can't use. Floating will destroy the wimpy Cat jack shaft splines.
Oh well, not the first time I leaped before I looked.

This brings up a good point. My thought has always been; if it can move--it will wear. It's physics. Bearings wear, bolts don't.

My take on secondary clutch float is; it was originally used to compensate for factory misalignment tolerances and engine movement, but with the radically improved manufacturing techniques and motor mounting compared to older sleds, it is now unnecessary from the OEM's but is still one of those "we do it, because we always have" things.

On a side note: I've been machining my own external adjusters for me & my buddies (only because I can), similar to OSP's or anyone else for that matter. Everyone I've made does not allow for float and I've not had any issues having them on a dozen sleds now.

I mean no disrespect to OSP regarding their adjuster nor am suggesting the sky is falling here, just suggesting that float is not needed anymore.

 

[Yamadog]

I believe the float on the Yamaha secondary is to compensate for the alignment shift between the primary and the secondary. The inner sheave on the primary is fixed and as the clutch closes and the belt rides up the faces it is forced in towards the engine bay. the float allows the belt to slide the secondary to center as the shift out occurs not to make up for poor alignment in the first place. If you remove the float the belt will be either deflecting at startup or at full shift out depending where you choose to center the secondary.

 

[FrozenTows4]

If you remove the float the belt will be either deflecting at startup or at full shift out depending where you choose to center the secondary.

Then why did the factory design it with no float? Or is that just a Arctic Cat thing?

 

[titanrcr]

Secondary float just provides for a few mm of self alignment, not needed but nice to have. I have been running "fixed" or non-floating secondary adjusters for years and they work just as well, just need to pay closer attention to alignment when installing the secondary. I do have the OSP adjuster on my viper, very nice part. For the guys worried about wearing out the splines, forget it, it's not happening.

 

[Yamadog]

Ordered one for my 2014 Xf7000 that I can't use. Floating will destroy the wimpy Cat jack shaft splines.
Oh well, not the first time I leaped before I looked.

Well is not our jackshaft the same?

 

[FrozenTows4]

Well is not our jackshaft the same?

Nope. Here's the Yamaha shaft.

And here's the Arctic Cat shaft.

Makes me think that I should have gotten a pure bred, rather than a hybrid. Thanks for letting me tag along. Just things we learn along the way.

 

[Yamadog]

Yeah it is the same shaft it just machined down on the secondary side to fit the stock splines. I don't see how lateral float of a couple of mm would place anymore load on the splines! If your making enough torque to turn the splines off the shaft then float will not affect that.

 

[FrozenTows4]

Would be nice to here OneStopJim's thoughts on the XF7000's smaller spline shafts. Pm'ed him, but I know he's a busy guy.
Hey, I did get a sticker!

 

[cannondale27]

Measure the splines. By eye the splines on Cat look about same dia as Apex. Nytro and Viper use a bigger spline but I have never heard of a reason they did so. The old Apex and earlier spline size never wore that I know of.

 

[FrozenTows4]

Measure the splines. By eye the splines on Cat look about same dia as Apex. Nytro and Viper use a bigger spline but I have never heard of a reason they did so. The old Apex and earlier spline size never wore that I know of.

Will do. But it's not the diameter that's concerning. It's the depth. Cats splines look to be only 1/2 the depth of Yamaha. Hopefully I can pull the clutch this weekend and post an image.

 

[cannondale27]

Well I hate to be blunt but by the time your splines on that cat shaft wear out your clutch will be toast anyway and then you can buy the Team setup which requires a new shaft anyway. I would not hesitate to put it on out of wear concern but then I have to ask Why? On the cat you just remove or add washers right on the bolt to change deflection. To remove belt you just flip the collar and thread it in and your clutch opens right up. Its so easy.

 

[mrush85]

Just ordered one up. Be the first real add on to the sled besides storage bags and still havent even drive it yet.

Sent from my SAMSUNG-SGH-I537 using Tapatalk

 

[FrozenTows4]

Well I hate to be blunt but by the time your splines on that cat shaft wear out your clutch will be toast anyway and then you can buy the Team setup which requires a new shaft anyway. I would not hesitate to put it on out of wear concern but then I have to ask Why? On the cat you just remove or add washers right on the bolt to change deflection. To remove belt you just flip the collar and thread it in and your clutch opens right up. Its so easy.

What I wanted to hear. Straight to the point. I'm keeping it stock, as is, at least for now. Thanks.

 

[Allan]

Just got my new sled 2016 stx dx 146
Put the belt adjuster on and the 8DN belt. Took bolt and washer off the back of secondary.
But the belt is 2 loose even with out any adjustment on the adjuster, secondary is tight together.
I was told the 8DN belt and this adjuster would work fine.

 

[onestopjim]

you have to spin it around by hand to get to come up to top.. call me if you need to 517 861 7122