Please help the dummy..
07-22-11 | 03:52 PM
#1
Thread Starter
Hogosha Sekai
Joined: Jun 2011
Posts: 6,674
Likes: 26
From: STS
Bikes: Leader 725, Centurion Turbo, Scwhinn Peloton, Schwinn Premis, GT Tequesta, Bridgestone CB-2,72' Centurion Lemans, 72 Raleigh Competition
Please help the dummy..
The dummy being me. I've dealt with the joys of cottered cranks (on my raleigh of course) but this square tapered crank business is new to me, after much work with a cheater bar and a vice I got the locking nuts off the crank arm and now the crank arms seem to be frozen on the spindle itself... being as this is a sugino super maxy crankset and I'd like to use it on this bike after the rebuild, any non destructive ideas would be great, alternating PB blaster and rubber mallet atm.
07-22-11 | 03:56 PM
#2
Senior Member
Joined: Jun 2010
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From: Bako, PRK
Bikes: '93(?) Diamondback Traverse, '96 Gary Fisher Mamba, 1981 SE Racing Quadangle.
Get a crank puller. They are really cheap and an indispensable tool to have if you do any kind of work at all on bikes.
And when you put it back together make sure you grease the taper before reassembly.
And when you put it back together make sure you grease the taper before reassembly.
07-22-11 | 03:58 PM
#3
Senior Member
Joined: Jun 2011
Posts: 1,180
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From: Sunnyvale, California
Bikes: Bridgestone RB-1, 600, T700, MB-6 w/ Dirt Drops, MB-Zip, Bianchi Limited, Nashbar Hounder
You'll get a good primer by first reading about cotterless cranks (which includes tapered 4 sided BB spindled cranks). See: https://www.sheldonbrown.com/tooltips/cotterless.html
You basically need a crank puller tool.
Note: When re-installing, it helps to try to look up torque specs, especially when tightening the bolts to press the cranks back on.
You basically need a crank puller tool.
Note: When re-installing, it helps to try to look up torque specs, especially when tightening the bolts to press the cranks back on.
07-22-11 | 04:00 PM
#4
Senior Member
Joined: Sep 2009
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From: Up
Bikes: Masi, Giant TCR, Eisentraut (retired), Jamis Aurora Elite, Zullo, Cannondale, 84 & 93 Stumpjumpers, Waterford, Tern D8, Bianchi, Gunner Roadie, Serotta, Serotta Duette, was gifted a Diamond Back
You need to get a crank puller Park tools makes the CCP-22 that may fit your crank. Check with the LBS to be sure.
you remove the crank arm bolts and then attach the crank puller to push the crank arm off the spindle
you remove the crank arm bolts and then attach the crank puller to push the crank arm off the spindle
07-22-11 | 04:02 PM
#5
Thread Starter
Hogosha Sekai
Joined: Jun 2011
Posts: 6,674
Likes: 26
From: STS
Bikes: Leader 725, Centurion Turbo, Scwhinn Peloton, Schwinn Premis, GT Tequesta, Bridgestone CB-2,72' Centurion Lemans, 72 Raleigh Competition
wow.. I never looked at the actual design of those before, guess it's off to REI after work. Thanks!
07-22-11 | 09:30 PM
#6
Thread Starter
Hogosha Sekai
Joined: Jun 2011
Posts: 6,674
Likes: 26
From: STS
Bikes: Leader 725, Centurion Turbo, Scwhinn Peloton, Schwinn Premis, GT Tequesta, Bridgestone CB-2,72' Centurion Lemans, 72 Raleigh Competition
Update: The Dummy picked up a parks CCP-22 and is in love.
07-23-11 | 05:40 AM
#7
Let your bike be the tool
Joined: Jun 2006
Posts: 1,110
Likes: 694
From: NC/SC border
Bikes: '66 Raleigh Carlton, '70 Ron Cooper, '95 Bianchi CD'I, "Bottecchia" Zonal Frame with Xenon gruppo, "Bottecchia"Carbon Frame with Record Gruppo, Columbia Twosome, Terry Classic, Bianchi SX, Gravity SS/FG, Titanium "Motobecane" with Ultegra DI2
Make certain the tool is completely threaded into the cranks before screwing in the press. If it is not you will strip out the crank's threads.
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07-23-11 | 09:57 AM
#8
Thread Starter
Hogosha Sekai
Joined: Jun 2011
Posts: 6,674
Likes: 26
From: STS
Bikes: Leader 725, Centurion Turbo, Scwhinn Peloton, Schwinn Premis, GT Tequesta, Bridgestone CB-2,72' Centurion Lemans, 72 Raleigh Competition
no worries, used a ratchet wrench before I even joined the two have halves.
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