T.R | Title | User | Personal Name | Date | Lines |
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421.1 | Broken?? | NAC::CAMPBELL | | Wed Aug 12 1987 10:01 | 12 |
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I must admit, I've never heard of anyone breaking a freewheel trying
to take it off. They get on there real tight though.... Maybe
he used the wrong tool......
To remove a freewheel you should use a vise. Put the tool in the
vice and turn the wheel. I've heard of peopld putting a wrench
on the tool and smacking it with a hammer, but that sounds like
a horror show to me!
Stew
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421.2 | happens all the time | MPGS::DEHAHN | | Wed Aug 12 1987 10:50 | 15 |
|
If it was an old Regina notched freewheel, and was on the bike for
10 years, count yourself LUCKY he could get it off at all. Those
FW's had a very thin piece of metal where the removal tool grabs
the FW, and broke (more like ripped) very easily. Later versions
use the more common splines. There is even an easy-out type tool
made by Bicycle Research which will remove one of these FW's if
it's hopelessly stuck, but it can ruin the FW in the process. Sounds
like he had to use one of those.
Realize that the 6 spd. FW you'll have now is a narrow spaced one,
and will shift quite a bit differently than your old one.
CdH
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421.3 | removing frewheels, spoke protectors | TALLIS::JBELL | Wot's..Uh the Deal? | Wed Aug 12 1987 11:35 | 40 |
| It's not impossible to really mess up a freeheel. Part of
the difficulty is that there are so many different kinds that
you can get a remover that almost but not quite fits. The
result will be a freewheel with its notches or splines all
chewn up.
Here's how to remove a freewhel:
1. Get the right freewheel remover.
2. Take off the locknut and cone from the freewheel side if
they are going to be in the way of the remover.
3. Put the freewheel remover in place and use the lock nut or
quick release to hold it there. If you use the lock nut,
make it only finger tight.
4. Use a vise (preferred) or the biggest wrench you've got.
Apply torque in the right-handed direction (normal), just
enough to get it to move. Loosen the lock nut or QR and then
unscrew some more.
N-1. Do any adjustment to the bearings before you put the
freewheel back on; you won't be able to reach the right side
cone afterwards.
N. Be sure to grease the freewheel threads when you
reassemble. It will tighten on its own.
Regarding spoke protectors:
I agree that an adjusted rear changer will not have any
problems. But.... every so often it will be out of
adjustment, either from damage or from wear. Considering
the damage that occurs if the derailer does fall into the
spokes, I will wear one on my bike.
-Jeff Bell
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421.4 | | TRACER::DUNN | | Wed Aug 12 1987 14:37 | 7 |
| Your new freewheel may require you to use a narrower chain to get
it to work well and without adding additional wear to the freewheel.
I recommend a sedis for narrow spaced freewheels
Paul Dunn
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421.5 | | RAINBO::WASSER | John A. Wasser | Thu Aug 13 1987 11:11 | 55 |
| > Is there any way of finding out whether the guy was incompetent or not,
> at least in freewheel removal?
It would be hard to tell if he was taking reasonable care.
> Has anyone else broken a freewheel?
I've never seen one damaged in removal unless the damage was caused
by incorrect use of the remover. Most of my experience is with
Suntour. I can't recall any Italian brands of freewheel except
maybe Campagnolo (which you wouldn't find on a cheap bike and which
you probably couldn't break if you tried).
> He'll be putting in a $18 Suntour 6-speed (my old one was 5-speed, I hope
> the derailleur can handle it).
If it's a narrow (a.k.a. Ultra) spaced freewheel (six cogs in
the space of an old 5 cog) then you may need to replace the
chain. If it is a normal spaced six speed freewheel then he
would probably have to replace the axel and stretch the frame
a bit (6 speed freewheels are 3mm wider than 5 speed).
Doesn't he have a nice $11 Suntour Perfect 5 speed freewheel?
> I'll be looking in Nashbar for a removal tool.
They have 2 prong and 4 prong Suntour removers for 2.89.
They also have Maillard for $4.80 and Shimano splined for $4.90
Performance has the Suntour 2 prong for $1.95 (better) and
4 prong for $2.95 (worse). They also have two styles of
Regina remover for $4.95.
> Can someone, in 14 lines or less, describe the removal process?
1)Remove the quick-release skewer completely. Place the remover tool prongs or
2)splines in the slots in the freewheel body. Put the quick-release skewer,
3)MINUS THE LITTLE CONICAL SPRINGS, back through the hub (preferably with
4)the handle on the side away from the freewheel). Tighten the skewer
5)finger tight over the freewheel remover (this is important because if
6)the remover isn't held against the body of the freewheel, it may tip
7)and slip out of its slots... this can damage the slots). Apply a large
8)wrench (usually a little under 1" open end wrench) counterclockwise to
9)the remover or clamp the remover faces in a vice and turn the wheel
10)counterclockwise JUST UNTIL THE FREEWHEEL POPS LOOSE (1/10 turn max!).
11)Loosen the skewer a bit and turn the remover some more. By the time
12)you get the freewheel turned one full turn you can remove the skewer
13)and turn the remover with your fingers. (And 1 line to spare!)
> Do I need a vise or other tools (besides a good book)?
You either need a vice or a large wrench. The wrench I use is
a 1" open end wrench. It is a little large so I put a thin
metal plate (a cone wrench, usually) between the wrench and
one side of the remover.
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421.6 | Thanks ... and | BAEDEV::RECKARD | Jon Reckard 264-7710 | Thu Aug 13 1987 13:09 | 11 |
| Thanks for all your replies.
Re: .5
> Doesn't he have a nice $11 Suntour Perfect 5 speed freewheel?
He didn't have any 5-speeds on hand. The one he put on was a $18!!
Suntour Perfect 6 speed (I can't find it in Nashbar - is it obsolete?).
He also said I didn't need a new hub, derailleur or chain. Does that
sound logical? (Again, sorry I can't supply makers for my existing
hardware, although it probably was original equipment on my several-
year-old Schwinn LeTour.)
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421.7 | | MPGS::DEHAHN | | Thu Aug 13 1987 15:27 | 11 |
|
Re: .5
The Regina I mentioned is Italian
Re: .6
Sounds like it's a narrow freewheel, you may need a new chain
CdH
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421.8 | Help removing old Shimano? freewheel | CIMAMT::CHINNASWAMY | The Mindless Cannibal | Tue Jun 13 1989 14:07 | 23 |
| I need some advice on removing what I believe is an old Shimano freewheel.
After removing the skewer and the axle (for repacking the bearings), I
decided I wanted to replace the 6 year old freewheel (I don't use this
bike much). I couldn't find any notches or splines to remove the whole
freewheel. I did get two wrenches with the chains attached to them and
removed the cogs from the freewheel body. This bike is about 6 years old
and is equiped with Shimano 600 components. The cogs, chain, and rear
derailer are all VERY similar to S.I.S. components. The cogs are slightly
angled to help the chain into a gear. The chain is a narrow one. The
derailer has a adjustment nob on it to adjust the cable tension. However,
the shifting is NOT S.I.S. I can't tell what make the freewheel is. The
whole setup could easily be made into sis by just changing the shifters.
Looking into the rear hub does reveal two small notches just outside the
bearing races, but I have not been able to find a removal tool that will
fit these notches. They are smaller than the ones on my suntour freewheel.
Is there anyplace I can find one of these tools? The only place I have
looked is the Nashbar catalogue. Is there some other way to get this thing
off?????
Thanx
Mano
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421.10 | You need the right tool | NAC::KLASMAN | | Wed Jun 14 1989 08:16 | 15 |
| < Note 421.8 by CIMAMT::CHINNASWAMY "The Mindless Cannibal" >
-< Help removing old Shimano? freewheel >-
>Looking into the rear hub does reveal two small notches just outside the
>bearing races, but I have not been able to find a removal tool that will
>fit these notches. They are smaller than the ones on my suntour freewheel.
I believe the notches on the old Shimano freewheels are smaller... you
definitely need the right tool. I had an old, inexpensive bike (circa 1982)
with Shimano stuff on it that had a cassette freehub, so...
You should try your local bike shops... they may have the tool.
Kevin
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421.11 | Is there a freehub? | TALLIS::JBELL | Ceci n'est pas une pipe. | | Wed Jun 14 1989 13:45 | 18 |
| Did the the lower gears all come off together?
Was the right bearing race out by the end? (It sounds like it was
if you were able to clean it.)
If so, then it's probably one of those shimano cassette hubs that I was
whining about in a recent note. If it's on a 198[23] nashbar bike,
then it's probably real similar to what I had.
Think twice before taking off the peice with two notches behind the
rear bearings. It's the cup for the rear bearing, but also
it's the cone for the freewheel. I think that it's left-hand threaded.
If you take it off, there will be about 70 little ball bearings around.
-Jeff
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421.12 | looks like a cassette from inside not outside | CIMAMT::CHINNASWAMY | The Mindless Cannibal | Thu Jun 15 1989 09:13 | 8 |
| The freewheel came off by removing the 6th gear by unscrewing it.
The rest of the gears just pulled off in one unit. Is this the same
as a cassette unit? I figured since my bike is so old that it can't
possibly have a cassette hub. It definately looks different from the
outside than a cassette hub.
Mano
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421.13 | | AHOUSE::ACKLEY | Mediumfoot | Thu Jun 15 1989 17:21 | 41 |
| RE .12
You've taken the cogs off the freewheel body, but the body is
still on the hub. In a cassette hub, the freewheel body is
a part of the hub, otherwise it will screw off. It is often
very hard to get freewheels off, sometimes even impossible. The
best way is to attach a 'freewheel tool' for that brand of
freewheel, to the freewheel body, using the quick-release lever.
then clamp the freewheel tool in a bench vise, and crank it off
using the leverage of the wheel. A bench vise *really* helps.
Sometimes it helps to have two people crank on the wheel.
If you have a cassette hub there will be no space between
the axle and the freewheel body, into which the tool slips.
On a cassette hub the axle emerges from the bearing at the
outside edge of the freewheel, while in the regular type of
rear wheel, the axle extends in under the freewheel, and the bearings
are concealed by the freewheel body.
You need a freewheel tool to remove the body, since you need to
screw if off in the direction that it ratchets. The tool slips inside
the body of the freewheel, in a place that doesn't ratchet.
Each brand of freewheel has it's own style of notches, thus
a different freewheel tool design. They're usually under $10.
I do 99% of my own bike work, but one of the very few things
I often ask for help on is freewheel removal. My shop only
charges 3 to 5 $$ for the job, and charges nothing for the
tools they break, or if they can't get it off. I have a wheel
at home now with a freewheel forever welded to the hub. :-(
Since the freewheel is no good, I have to get a new rear wheel.
It's broken three freewheel tools, a vise, and two shops have
given up on it. I am considering it's future in macrame...
If you *do* get your freewheel off, be *sure* you grease
the threads before putting it back on. Otherwise it may never
come off again. You screw it on harder with each pedal stroke.
the wheel I mentioned above, *did* have grease when it was
assembled, but even so it's stuck forever.
Alan.
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421.14 | Give me a lever long enough, and I can move the world | CESARE::JOHNSON | At home he feels like a tourist | Thu Jun 15 1989 17:45 | 6 |
| When I used to change freewheels before a race, I'd take a nice
10" crescent wrench and attach it to the freewheel tool. Then
I'd wedge the wheel against the back bumper of the car, and step
on the handle of the wrench. This always seemed to work.
MATT
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421.15 | get a multi-purpose tool..... | SUSHI::KMACDONALD | Is there life after drywall? | Fri Jun 16 1989 10:29 | 12 |
| > When I used to change freewheels before a race, I'd take a nice
> 10" crescent wrench and attach it to the freewheel tool. Then
Gee, Matt, that's too short of a Crescent wrench (I have a French one,
so I usually refer to it as a croissant wrench, but... :-) ). If'n
you're thinking about getting a wrench for this purpose, getcher self a
15" wrench like mine. Turns out the jaw openings are big enough with
this size wrench to handle headset/BB/whatever nuts in almost any
configuration I've seen, where 10 & 12" wrenches don't quite hack it....
.... and freewheels come off REAL easy!
ken
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