2016 jackshaft upgrade

[Allan]

May be cheaper to just buy either the 16 or 17 jackshaft.

The 2016 has a different Part # than the 2017. The 2016 has the wobble bearing but the 2017 don't so better to get the 2017

 

[twyztid]

The 2016 has a different Part # than the 2017. The 2016 has the wobble bearing but the 2017 don't so better to get the 2017

Yes, I will be installing a 2017 Sidewinder jackshaft in my 2015 when I get a few more miles on it.

 

[cannondale27]

Yes, I will be installing a 2017 Sidewinder jackshaft in my 2015 when I get a few more miles on it.

The inner case is different also. Snapring is in a different spot

 

[twyztid]

The inner case is different also. Snapring is in a different spot

Yes. The bearing for the 17 Sidewinder jackshaft is 4mm narrower so the snap ring groove is space out 4mm too far. I found some snap rings that are exactly 2mm thick and plan on using a pair of them as spacers when I do it.

 

[Janne339]

I'm running -16 jackshaft and german FAG 4206 dubble row bearing in chaincase for almost two seasons now. That set up works too.

 

[Yamasledder]

I'm running -16 jackshaft and german FAG 4206 dubble row bearing in chaincase for almost two seasons now. That set up works too.

A question I have is ….how do you know when the jackshaft is absolutely perpendicular to the chaincase bearing bore? I'm not trying to defend the use of the wobble bearing but it seems that it would allow for a slight (and I mean slight) misalignment of the jackshaft to the bearing bore. Putting in normal bearings and especially double row bearings would necessitate perfect alignment of the jackshaft. Is there a way to check this alignment without being a scientist and an engineer?

 

[cannondale27]

A question I have is ….how do you know when the jackshaft is absolutely perpendicular to the chaincase bearing bore? I'm not trying to defend the use of the wobble bearing but it seems that it would allow for a slight (and I mean slight) misalignment of the jackshaft to the bearing bore. Putting in normal bearings and especially double row bearings would necessitate perfect alignment of the jackshaft. Is there a way to check this alignment without being a scientist and an engineer?

If the Jackshaft were only a few inches long alignment would be critical for bearing survival. Its not and Lack of any bearing failures in Sidewinders has shown its close enough with the regular bearing. I hear you ideally it would be perfectly parallel. In the shop we do that with precision levels.