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Hubs hitting idler pulley
http://www.hobie.com/au/en/forums/viewtopic.php?f=11&t=63970		 Page 1 of 1
Author:  WAVERIDER [ Fri Nov 16, 2018 2:24 am ]
Post subject:  Hubs hitting idler pulley
Started using an old GT drive i haven't used for a while and noticed quite a substantial clunk as the hubs both contact the idler pulley on both sides on forward extension. Is this a concern other than just annoying, and also is it simply an adjustment somewhere? Drive hasn't been used in 3 years, I dont remember this happening previously.
Author:  Pollo de muerte [ Fri Nov 16, 2018 3:17 am ]
Post subject:  Re: Hubs hitting idler pulley
Not to ask the obvious, but are the cables at the proper tension?

https://www.hobie.com/forums/viewtopic.php?f=60&t=12578

Are the hubs worn such that they are loose on the shaft?

I can attest that the copper bushing fix returns a worn hub to better than new condition:

https://www.hobie.com/forums/viewtopic.php?f=11&t=35629
Author:  WAVERIDER [ Fri Nov 16, 2018 4:07 am ]
Post subject:  Re: Hubs hitting idler pulley
I tightened the cables anyway,m they could have become slack overtime. Though hand operation seems no different. Buts often different to installed operation.

Hubs not worn as it is relatively low usage

Actions to consider include filing a bit off hubs/chamfering outer edge of idler / adding spacer washers to hub shaft to separate them better. As it didn't do this before I suspect it could just need cables tightening or something simple.
Author:  Roadrunner [ Fri Nov 16, 2018 8:57 am ]
Post subject:  Re: Hubs hitting idler pulley
WAVERIDER wrote:
Started using an old GT drive i haven't used for a while and noticed quite a substantial clunk as the hubs both contact the idler pulley on both sides on forward extension. Is this a concern other than just annoying, and also is it simply an adjustment somewhere? Drive hasn't been used in 3 years, I dont remember this happening previously.
You may have an earlier version of GT idler pulley. The first ones tended to brush against the drums at the leading edge on the forward stroke -- they were slightly fatter to accommodate the roller bearings. Hobie has since made a modification that steps down or narrows the rearmost part of the pulley so that it clears the drums.
Image Image

You can ignore it or file down the rearmost portion as shown. The Hobie image above appears to be the earlier version. 8)
Author:  WAVERIDER [ Fri Nov 16, 2018 3:12 pm ]
Post subject:  Re: Hubs hitting idler pulley
I think thats what I will do. Its just weird that it never used to do that.
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