Shimano inter 8 shifting issues.
I have a fairly new, 2 moths old, shimano inter-8 hub that is now acting up. I installed the hub myself and after about a week, got it perfectly adjusted so all 8 gears worked great. Then suddenly after about a month or so of perfect operation gears 5-8 now want to skip. I can get gears 1-4 to shift as expected, but no amount of adjusting seems to want to fix the issue. I can get around fine on gears 1-4, but it would be nice to have the option to use those gears.
I don't ride hard, and only apply light to moderate pressure on the pedals. Just enough to get going at a slow pace. |
cable out of adjustment is the first thing to check, line up the 2 pitch marks ..
|
it is my understanding
that the nexus and alfine internally geared hubs are very finicky when it comes to cable routing a problem i have had when trying to kludge together a working bike is that if you use the wrong anti turn washers the cable has a very good chance of touching the chain which can make the shifting act like it has ants in its pants edit
Originally Posted by harshbarj
(Post 16730752)
after about a week, got it perfectly adjusted so all 8 gears worked great
nexus hubs generally have one adjustment to make and that is to set the cable tension so that the lines on the hub are lined up when the shifter is in the marked gear and if that adjustment is made correctly the hub should work perfectly the first time so please describe your setup including droupout type ie vertical or horizontal which anti rotation washers you are using how you have your cable routed and which shifters you are using a picture would be very helpful |
Originally Posted by fietsbob
(Post 16730797)
cable out of adjustment is the first thing to check, line up the 2 pitch marks ..
|
Gears 5 thru 8 are attained when the clutch engages the planet carrier and by passes the low range reduction gear. Best bet is the clutch is not fully engaging, possibly due to a weak spring, or more likely the tabs are hanging up in the shift spring mechanism.
You need to find somebody that has the tools and know how to disassemble it that far. |
Originally Posted by Dan Burkhart
(Post 16731436)
Gears 5 thru 8 are attained when the clutch engages the planet carrier and by passes the low range reduction gear. Best bet is the clutch is not fully engaging, possibly due to a weak spring, or more likely the tabs are hanging up in the shift spring mechanism.
You need to find somebody that has the tools and know how to disassemble it that far. I have the tools and have taken the inter-3, inter-7, and inter-8 apart many times before (and yes, got them back together and working without mysterious "spare parts"). Figured I'd ask as even though I know a lot about these hubs, I do not know everything. I'll have a look tonight and see if I can spot a problem once it's out of the shell. That part is at least simple to do. |
Originally Posted by harshbarj
(Post 16731480)
I was hoping it was a simpler problem.
I have the tools and have taken the inter-3, inter-7, and inter-8 apart many times before (and yes, got them back together and working without mysterious "spare parts"). Figured I'd ask as even though I know a lot about these hubs, I do not know everything. I'll have a look tonight and see if I can spot a problem once it's out of the shell. That part is at least simple to do. |
sounds like something wrong
at the cassette joint it should line up perfectly but dan burkhart you have more experience so i think you're right too |
Originally Posted by harshbarj
(Post 16731480)
I was hoping it was a simpler problem.
I have the tools and have taken the inter-3, inter-7, and inter-8 apart many times before (and yes, got them back together and working without mysterious "spare parts"). Figured I'd ask as even though I know a lot about these hubs, I do not know everything. I'll have a look tonight and see if I can spot a problem once it's out of the shell. That part is at least simple to do. |
The drive side cone nut was loose. Tightened it down and then tightened the lock nut. Did not have to adjust a thing. Works great again. Did my shopping rounds and not one skip (about 15 miles total). I'll not worry about the yellow marks not lining up as it works fine again. Wish all problems were this simple. I was worried it was something internal.
|
Originally Posted by harshbarj
(Post 16745395)
...I'll not worry about the yellow marks not lining up as it works fine again....
|
Originally Posted by Mr IGH
(Post 16749039)
Are you sure you have eight gears? If it's off by that much and shifts fine, it's been my experience it's off by one gear and 1st or 8th isn't available.
|
Originally Posted by hueyhoolihan
(Post 16749111)
so OP was happy but had it wrong, then became unhappy, fixed it, and was happy again, now you're telling him he had it wrong all along and should never have been happy in the first place. have i got it right? :lol:
than to suggest tearing it apart for no reason |
Originally Posted by Mr IGH
(Post 16749039)
Are you sure you have eight gears? If it's off by that much and shifts fine, it's been my experience it's off by one gear and 1st or 8th isn't available.
|
All times are GMT -6. The time now is 01:55 PM. |
Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.