red-stripe nexus inter-8 - gears frozen

i can not shift down from 4th gear on my red-stripe nexus inter-8
in fact, cranks are totally frozen in gears 5-8

returning shifter to 1-4 range and all is fine there again


z

On Sep 5, 11:35*am, crowizcom wrote:
i can not shift down from 4th gear on my red-stripe nexus inter-8
in fact, cranks are totally frozen in gears 5-8

returning shifter to 1-4 range and all is fine there again

If the cranks are totally frozen it is likely a failure inside the
hub.
If you are still under warranty from shimano (1 year) return it to the
place of purchase.
Otherwise you can order a new gearbox to replace the old one, and any
local
bike mechanic should be able to effect the replacement.

-Rando

i am about to open gearbox myself
would like to hear guesses on what is most likely at fault

z

On Sep 5, 2:59*pm, crowizcom wrote:
i am about to open gearbox myself
would like to hear guesses on what is most likely at fault

I have no idea but these might help:

http://www.shimano.com/publish/conte...tech_tips.html

http://www.shimano.com/publish/conte...08%20Speed.pdf

-Rando

Here we go:

http://www.shimano.com/publish/conte...0by%20Gear.pdf

"It is possible for the large bearing retainer to get damaged when
installing the internal assembly back into the hub shell after
service. If a bearing gets wedged under ring gear 1 and it is not able
to freewheel then the bike will not pedal in 5th-8th gear."

That sounds like your problem, and if it is just a wedged bearing it
should be easy to fix.

-Rando

crowizcom wrote:
i am about to open gearbox myself
would like to hear guesses on what is most likely at fault

pdxrandonneur wrote:
I have no idea but these might help:
http://www.shimano.com/publish/conte...tech_tips.html
http://www.shimano.com/publish/conte...08%20Speed.pdf

Riding in salt water doesn't help those hubs either:
http://www.yellowjersey.org/photosfr...t/alf8rust.jpg
http://www.yellowjersey.org/photosfr...t/nx7brokn.jpg

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971

On 5 Sep, 19:35, crowizcom wrote:
i can not shift down from 4th gear on my red-stripe nexus inter-8
in fact, cranks are totally frozen in gears 5-8

returning shifter to 1-4 range and all is fine there again

z

"red-stripe nexus inter-8" is that the Bud - Coors -Molson -West
coast -Carlsberg -Guinness -Denoe and Geddes new combine name?

On Sep 5, 4:04*pm, AMuzi wrote:
*crowizcom wrote:
i am about to open gearbox myself
would like to hear guesses on what is most likely at fault
pdxrandonneur wrote:
I have no idea but these might help:
http://www.shimano.com/publish/conte...us/index/tech_...
http://www.shimano.com/publish/conte...us/index/tech_...

Riding in salt water doesn't help those hubs either:http://www.yellowjersey.org/photosfr...t/nx7brokn.jpg

More dead hub snuff:

http://www.astounding.org.uk/ian/hubgear/mangled.html

-Rando

such a find!

a ball slipped out of retainer and of to the cogs.
got new retainer instead of fixing the lousy one.

will update on score

thanks again!

z