Belt deflection question

[3UR]

Quick question I know there are two factory shims under the bolt that mounts the secondary to the jack shaft

As the belt wears and drops down in the secondary do you add shims or remove shims from the secondary?

 

[done dooin'_winder up]

add shim if belt is further than .5 mm below top of sheave. correct height is .5mm below to +1.5 mm above top of sheave.

 

[3UR]

add shim if belt is further than .5 mm below top of sheave. correct height is .5mm below to +1.5 mm above top of sheave.

Thanks for the quick reply. Off to the dealer to get shims.

 

[Reaper]

Thanks for the quick reply. Off to the dealer to get shims.

Is that .5mm below to 1.5 mm above at the bottom of the cog or the top of the cog (top of belt)

 

[done dooin'_winder up]

Is that .5mm below to 1.5 mm above at the bottom of the cog or the top of the cog (top of belt)

top

 

[Reaper]

View attachment 127334 Ok, on the machine I am about 1 mm above.

 

[Snowaddict]

Imo these things like the belt a little lower compared to other sleds. My apex seems to like it a tad above the top of the sheaves, but the Sidewinder seems to do better a tad below.

 

[SWTURBO]

If your rollers have flat spots on them then your belt will sit lower. So check those rollers.

 

[Byam]

Watch out if to much above! At idle the inside off the belt Is rubbing on the primary shaft.