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chipped alfine

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  • Bruce Gilmore
    I was changing out the ball retainers in my alfine(501) today when under the shifting mechanism I found a small fragment of metal. I m not sure of the exact
    Message 1 of 6 , May 10, 2013
      I was changing out the ball retainers in my alfine(501) today when under the shifting mechanism I found a small fragment of metal. I'm not sure of the exact terminaology of the name of the part, but think my hub will require new guts as I don't think shimano will sell the part

      http://xa.yimg.com/kq/groups/22996827/sn/768089986/name/Image2357.jpg
      http://xa.yimg.com/kq/groups/22996827/sn/793885891/name/Image2355.jpg

      If these links dont work then please look at the last 2 pics in my folder in this group

      By the way, is there a trick to reassembling the spring which tensions the shift mechanism, it came apart so easy but I couldn't work out how to get it back together
    • Zack B
      You can see photos of a similar failure on Aaron s site: http://www.rideyourbike.com/images/internalgear/brokenaxletabbits.jpg
      Message 2 of 6 , May 10, 2013


        On Fri, May 10, 2013 at 9:56 AM, Bruce Gilmore <irn_bru_ce@...> wrote:
         

        I was changing out the ball retainers in my alfine(501) today when under the shifting mechanism I found a small fragment of metal. I'm not sure of the exact terminaology of the name of the part, but think my hub will require new guts as I don't think shimano will sell the part

        http://xa.yimg.com/kq/groups/22996827/sn/768089986/name/Image2357.jpg
        http://xa.yimg.com/kq/groups/22996827/sn/793885891/name/Image2355.jpg

        If these links dont work then please look at the last 2 pics in my folder in this group

        By the way, is there a trick to reassembling the spring which tensions the shift mechanism, it came apart so easy but I couldn't work out how to get it back together




        --
        -Zack
      • Zack B
        ... This is the best shimano 8 speed re-assembly video I have seen: http://www.youtube.com/watch?v=H7JqCCkhSUU (Unfortunately it is in russian.) -- -Zack
        Message 3 of 6 , May 10, 2013
          On Fri, May 10, 2013 at 9:56 AM, Bruce Gilmore <irn_bru_ce@...> wrote:
           

          By the way, is there a trick to reassembling the spring which tensions the shift mechanism, it came apart so easy but I couldn't work out how to get it back together


          This is the best shimano 8 speed re-assembly video I have seen:

          http://www.youtube.com/watch?v=H7JqCCkhSUU

          (Unfortunately it is in russian.)

          --
          -Zack
        • bikealfa
          Just curious - about how many miles, what kind of service (trailers, other loads, hills, power shifting)? Michael Wilson
          Message 4 of 6 , May 11, 2013
            Just curious - about how many miles, what kind of service (trailers, other loads, hills, power shifting)?

            Michael Wilson

            --- In Geared_hub_bikes@yahoogroups.com, "Bruce Gilmore" <irn_bru_ce@...> wrote:
            >
            > I was changing out the ball retainers in my alfine(501) today when under the shifting mechanism I found a small fragment of metal. I'm not sure of the exact terminaology of the name of the part, but think my hub will require new guts as I don't think shimano will sell the part
            >
            > http://xa.yimg.com/kq/groups/22996827/sn/768089986/name/Image2357.jpg
            > http://xa.yimg.com/kq/groups/22996827/sn/793885891/name/Image2355.jpg
            >
            > If these links dont work then please look at the last 2 pics in my folder in this group
            >
            > By the way, is there a trick to reassembling the spring which tensions the shift mechanism, it came apart so easy but I couldn't work out how to get it back together
            >
          • Bruce Gilmore
            Probably about a couple thousand miles, first thousand with 42/16 then more recently 56/16, laced into a set of 406 rims, I weight about 80kg and usually 5kg
            Message 5 of 6 , May 11, 2013
              Probably about a couple thousand miles, first thousand with 42/16 then more recently 56/16, laced into a set of 406 rims, I weight about 80kg and usually 5kg of water/lock, plus sometimes another 5kg of shopping in my backpack. I used it mainly for short runs round town where I was often stopped at red lights, then standing hard on the pedals accelerating upon green. I took the bike via plane to BC a couple of times and biked some very steep backroads, sometimes 20mins of standing up cranking in 1st, so it's not had the easiest of lives. Although the guts have been dunked in oil twice already and this time was to be the 3rd service. I always try to unload the pedals a bit to change gear, and over the last couple of years I have another bike with an S7 which needs a momentary zero load to shift, so probably got better at shifting under lower loads since then

              --- In Geared_hub_bikes@yahoogroups.com, "bikealfa" <mtwils@...> wrote:
              >
              > Just curious - about how many miles, what kind of service (trailers, other loads, hills, power shifting)?
              >
              > Michael Wilson
              >
              > --- In Geared_hub_bikes@yahoogroups.com, "Bruce Gilmore" <irn_bru_ce@> wrote:
              > >
              > > I was changing out the ball retainers in my alfine(501) today when under the shifting mechanism I found a small fragment of metal. I'm not sure of the exact terminaology of the name of the part, but think my hub will require new guts as I don't think shimano will sell the part
              > >
              > > http://xa.yimg.com/kq/groups/22996827/sn/768089986/name/Image2357.jpg
              > > http://xa.yimg.com/kq/groups/22996827/sn/793885891/name/Image2355.jpg
              > >
              > > If these links dont work then please look at the last 2 pics in my folder in this group
              > >
              > > By the way, is there a trick to reassembling the spring which tensions the shift mechanism, it came apart so easy but I couldn't work out how to get it back together
              > >
              >
            • aarons_bicycle_repair
              that failure is caused by loose axle nuts. Remember use grease and torque each nut to 35 foot-pounds!
              Message 6 of 6 , May 11, 2013
                that failure is caused by loose axle nuts. Remember use grease and torque each nut to 35 foot-pounds!

                --- In Geared_hub_bikes@yahoogroups.com, Zack B <zoombomber@...> wrote:
                >
                > You can see photos of a similar failure on Aaron's site:
                >
                > http://www.rideyourbike.com/images/internalgear/brokenaxletabbits.jpg
                >
                > http://www.rideyourbike.com/images/internalgear/alfine8axlecrack.jpg
                >
                > http://www.rideyourbike.com/internalgears.shtml
                >
                >
                >
                >
                > On Fri, May 10, 2013 at 9:56 AM, Bruce Gilmore <irn_bru_ce@...> wrote:
                >
                > > **
                > >
                > >
                > > I was changing out the ball retainers in my alfine(501) today when under
                > > the shifting mechanism I found a small fragment of metal. I'm not sure of
                > > the exact terminaology of the name of the part, but think my hub will
                > > require new guts as I don't think shimano will sell the part
                > >
                > > http://xa.yimg.com/kq/groups/22996827/sn/768089986/name/Image2357.jpg
                > > http://xa.yimg.com/kq/groups/22996827/sn/793885891/name/Image2355.jpg
                > >
                > > If these links dont work then please look at the last 2 pics in my folder
                > > in this group
                > >
                > > By the way, is there a trick to reassembling the spring which tensions the
                > > shift mechanism, it came apart so easy but I couldn't work out how to get
                > > it back together
                > >
                > >
                > >
                >
                >
                >
                > --
                > -Zack
                >
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