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Rolf hub disassembly



 
 
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  #1  
Old September 14th 03, 05:43 PM
Tony Eva
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Default Rolf hub disassembly

I have a problem with a creaking rear Rolf Sestriere wheel, and need to
disassemble the hub to inspect and regrease the bearings. Trouble is, I
can't
for the life of me see how to do that. There are no locknuts, flats for
spanners, nothing. Any clues how to open it up?

Also, any suggestions on how to quieten the incredibly loud buzzing from
the hub when freewheeling, would be hugely appreciated.

--
Tony


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  #2  
Old September 15th 03, 02:58 PM
Michael Dart
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Default Rolf hub disassembly


"Tony Eva" wrote in message
...
I have a problem with a creaking rear Rolf Sestriere wheel, and need to
disassemble the hub to inspect and regrease the bearings. Trouble is, I
can't
for the life of me see how to do that. There are no locknuts, flats for
spanners, nothing. Any clues how to open it up?

Also, any suggestions on how to quieten the incredibly loud buzzing from
the hub when freewheeling, would be hugely appreciated.

--
Tony



Are the holes where the skewer goes through hex shaped like Chris King hubs?
Just a guess - I'm not familiar with the Sestriere hub, the Rolf Dolomite
hubs I have have flats for cone wrenches.

Mike


  #3  
Old September 15th 03, 09:08 PM
kapers
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Default Rolf hub disassembly

Hey Tony.
Remove the skewer.
Hook your fingers under the biggest cog, place thumbs on the spokes of your
choice and pull the cogs off. The cogs and freehub body should pull the
drive side endcap off the axle. This should expose the 2 Splined gears (the
ratcheting mechanism). Your hub has 4 sealed cartridge bearings (2 in the
freehub body and 2 in the hub shell). Unless they feel rough, leave them
alone.
Special tools are requires to get them out (except the hub shell non-drive
side bearing...knock the axle out of the hub from the drive side and that
bearing will come out with the axle), even to get to the seals for
regreasing. I would just clean everything (the 2 splined cogs, the splines
in the hub shell and freehub body, the springs and the spacer/sleeve the
splined cogs surround with a nice brush and some degreaser.
Make sure you get every bit of corrosion and particulate out of the nooks
and crannies. Inspect the mating surfaces of the splined cogs.... any
chipped teeth? no? good.
Noise from the unit (the buzzing you mentioned) depends on choice of lube.
If it is noisy now (noisier than when it was new) then it was probably quite
dry in there. Relube the mechanism with a light coat of the lightest grease
you have (nothing too heavy).... just a light coat on all surfaces you
cleaned.
The heavier the grease the quieter the sound but then you risk the chance
of the splines not engaging fully and that may cause chipped teeth (or
inconsistent engagement). Unfortunately, the price you pay for a light,
quick to engage rear hub is the noise you don't like. All splined hubs will
be noisier than their pawl engaging counterparts. Unfortunately, if you want
to eliminate the noise completely (not just lessen it), you need new wheels,
as the hub shells are proprietary to Rolf (and now Trek/Bontrager).
Ask anyone using Chris King, Marwi, DT/Hugi, Edco, or Bontrager hubs what
they do to deal with the noise... (I run Phil Oil in my Marwi for winter. On
cold, foggy, sound travels further than your vision can see kinda days I
must scare the crap out of people).

Now, could you tell us under what conditions the wheel creaks?
(I'd hate to have you go through all that if it is just a simple rubber seal
that is dry and squeaking...).

Hope this helps.
Keith Pears

"The knack lies in learning to throw yourself
- at the ground and miss"
Douglas Adams.

"Tony Eva" wrote in message
...
I have a problem with a creaking rear Rolf Sestriere wheel, and need to
disassemble the hub to inspect and regrease the bearings. Trouble is, I
can't
for the life of me see how to do that. There are no locknuts, flats for
spanners, nothing. Any clues how to open it up?

Also, any suggestions on how to quieten the incredibly loud buzzing from
the hub when freewheeling, would be hugely appreciated.

--
Tony




  #4  
Old September 15th 03, 10:53 PM
Tony Eva
external usenet poster
 
Posts: n/a
Default Rolf hub disassembly


"kapers" wrote in message
news:q%o9b.12751$Cu3.9516@edtnps84...
[ ... long and very useful stuff snipped ... ]


Thanks Keith, that is very helpful. I don't have the hub right here
in front of me so I can't try it right now; but if I understand you, it
just basically pulls apart? That hadn't occurred to me at all :-)

Now, could you tell us under what conditions the wheel creaks?


Well, I didn't want to bore the group with yet another "my bike creaks"
story, but since you asked, here goes... :-)

It occurs under heavy load (normally when I am going uphill, though
hard pedalling on the flat can produce it), in sync with the cadence.

It occurs in all gears, and both chainrings, when I'm sitting or
standing. Before moving my attention to the rear wheel (which is
where it sounds like it comes from anyway) I had checked and lubed
(or replaced) BB, pedals, cleats, chainring bolts, seatpost, saddle
rails, chain, sprockets (on the hub), and dropouts. Then I had the
illuminating idea of borrowing a friend's wheel - creaks disappeared
instantly. Since then I have dripped oil down the spoke nipples (and
also onto the hub ends of the spokes) and checked the spoke crossing
points. All to no avail. So now I'm moving on to the hub - hence my
question.

Oh, and it's an OCLV frame so I think frame cracks are unlikely - not
that I haven't checked for them...

The sound is a definite rhythmical cracking/creaking, not a squeak.
And the weirdest thing is that it stops instantly if I shift gear, only
to come back again within 10-15 secs. It's embarrassingly loud, so
much so that I now change gear just before I pass other riders, to give
myself that period of relative silence (bar my gasping) before the
racket starts up again.

So now you know :-) Any ideas for things I haven't tried would be
extremely welcome. I've more or less run out.

--
Tony


  #5  
Old September 15th 03, 10:56 PM
Tony Eva
external usenet poster
 
Posts: n/a
Default Rolf hub disassembly

"Michael Dart" wrote in message
...
Are the holes where the skewer goes through hex shaped like Chris King

hubs?

Thanks, but no, they're quite round, ISTR (don't have it here right now).
I'm sure I would have noticed that...

--
Tony



  #6  
Old September 16th 03, 03:53 AM
dianne_1234
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Posts: n/a
Default Rolf hub disassembly

I've solved creaking in some Rolf hubs by greasing the threads on the
drive ring. You can see it in the hub shell after you take off the
cassette (see Keith's excellent description), but it requires a
special tool to unscrew. Pedaling tightens it.

"Tony Eva" wrote in message ...
"kapers" wrote in message
news:q%o9b.12751$Cu3.9516@edtnps84...
[ ... long and very useful stuff snipped ... ]


Thanks Keith, that is very helpful. I don't have the hub right here
in front of me so I can't try it right now; but if I understand you, it
just basically pulls apart? That hadn't occurred to me at all :-)

Now, could you tell us under what conditions the wheel creaks?


Well, I didn't want to bore the group with yet another "my bike creaks"
story, but since you asked, here goes... :-)

It occurs under heavy load (normally when I am going uphill, though
hard pedalling on the flat can produce it), in sync with the cadence.

It occurs in all gears, and both chainrings, when I'm sitting or
standing. Before moving my attention to the rear wheel (which is
where it sounds like it comes from anyway) I had checked and lubed
(or replaced) BB, pedals, cleats, chainring bolts, seatpost, saddle
rails, chain, sprockets (on the hub), and dropouts. Then I had the
illuminating idea of borrowing a friend's wheel - creaks disappeared
instantly. Since then I have dripped oil down the spoke nipples (and
also onto the hub ends of the spokes) and checked the spoke crossing
points. All to no avail. So now I'm moving on to the hub - hence my
question.

Oh, and it's an OCLV frame so I think frame cracks are unlikely - not
that I haven't checked for them...

The sound is a definite rhythmical cracking/creaking, not a squeak.
And the weirdest thing is that it stops instantly if I shift gear, only
to come back again within 10-15 secs. It's embarrassingly loud, so
much so that I now change gear just before I pass other riders, to give
myself that period of relative silence (bar my gasping) before the
racket starts up again.

So now you know :-) Any ideas for things I haven't tried would be
extremely welcome. I've more or less run out.

  #7  
Old September 27th 03, 09:03 PM
Tony Eva
external usenet poster
 
Posts: n/a
Default Rolf hub disassembly

"Tony Eva" wrote...

Well, I didn't want to bore the group with yet another "my bike creaks"
story, but since you asked, here goes... :-)

[ ... snip ...]


For the benefit of Googlers looking for an answer to their creaking
bike problems: the hub disassembly and greasing sorted the problem
out. Now I have a lovely silent bike again, at long last. Thanks
to all for their help.

--
Tony


 




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