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#11
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Removing a freewheel - no wheel rim
On 7/27/2014 7:36 PM, David Scheidt wrote:
Frank Krygowski wrote: :I was given an old Campy hub with a nice SunTour New Winner freewheel on :it, all very low mileage. Since I still use this model of freewheel on :a couple bikes, I'd like to get it off the Campy hub. :Trouble is, the rim is gone. It was a tubular rim that had corroded in :two in someone's basement. That's why the hub it was given to me. :Before I track down a rim with a roughly correct diameter and :temporarily build a wheel, anybody got an easier way to handle this? :Wood blocks in a bench vise didn't do the trick. It just takes too much :torque to crank the freewheel off. Take the hub, the correct freewheel remover, and the half inch drive impact socket that fits the freewheel (Park tools are all (almost all?) 1") to your auto mechanic. (A good mechanic is likely to have the right socket, but having it handy saves time and effort.) Have him use an air impact wrench on it. Three seconds, done. That's a great suggestion! THX! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
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#12
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Removing a freewheel - no wheel rim
On Mon, 28 Jul 2014 07:43:44 -0500, AMuzi wrote:
On 7/27/2014 6:55 PM, Frank Krygowski wrote: I was given an old Campy hub with a nice SunTour New Winner freewheel on it, all very low mileage. Since I still use this model of freewheel on a couple bikes, I'd like to get it off the Campy hub. Trouble is, the rim is gone. It was a tubular rim that had corroded in two in someone's basement. That's why the hub it was given to me. Before I track down a rim with a roughly correct diameter and temporarily build a wheel, anybody got an easier way to handle this? Wood blocks in a bench vise didn't do the trick. It just takes too much torque to crank the freewheel off. Clean the remover notches and mount a good sharp (not worn) tool securely with a skewer. Mount the tool in a bench vise. Rock the hub to set the tool fully and ensure your skewer is tight. Using a 24" channel lock pliers, grab the right flange, squeeze hard and unscrew the hub. You'll have several small dings in the flange which may be filed smooth and polished on a cotton wheel before rebuilding the hub. A curved-jaw pliers will leave more but smaller dings than a flat face tool. Some guys prefer to half build the wheel on a scrap rim using the left flange but there's a real risk of twisting the hubshell so I don't suggest that. The OP doesn't care if the Campy hub is destroyed removing the freewheel - It's just the SunTour Winner freewheel he wants to save. |
#13
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Removing a freewheel - no wheel rim
On Monday, July 28, 2014 4:23:52 PM UTC-4, wrote:
On Mon, 28 Jul 2014 07:43:44 -0500, AMuzi wrote: Some guys prefer to half build the wheel on a scrap rim using the left flange but there's a real risk of twisting the hubshell so I don't suggest that. The OP doesn't care if the Campy hub is destroyed removing the freewheel - It's just the SunTour Winner freewheel he wants to save. Actually, I'd kind of like to keep the hub undamaged, too. I don't really have a use for it, but I'm sort of a junk collector - if Campy hubs can be considered junk. I was pretty excited by the impact wrench idea, since one of my best friends has a big compressor and impact set. But then I realized my 2-prong SunTour freewheel removal tool has just two flats in a cylindrical body, rather than a hex body. I suppose I could grind it to a hex, but at this point, it seems it might be easiest to just half-ass build it into one of the old rims I own. Fortunately, I'm sort of a junk collector. Thanks for the ideas. - Frank Krygowski |
#14
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Removing a freewheel - no wheel rim
AMuzi wrote:
:On 7/27/2014 7:36 PM, David Scheidt wrote: : Frank Krygowski wrote: : :I was given an old Campy hub with a nice SunTour New Winner freewheel on : :it, all very low mileage. Since I still use this model of freewheel on : :a couple bikes, I'd like to get it off the Campy hub. : : :Trouble is, the rim is gone. It was a tubular rim that had corroded in : :two in someone's basement. That's why the hub it was given to me. : : :Before I track down a rim with a roughly correct diameter and : :temporarily build a wheel, anybody got an easier way to handle this? : :Wood blocks in a bench vise didn't do the trick. It just takes too much : :torque to crank the freewheel off. : : Take the hub, the correct freewheel remover, and the half inch drive impact : socket that fits the freewheel (Park tools are all (almost all?) 1") to your : auto mechanic. (A good mechanic is likely to have the right socket, but : having it handy saves time and effort.) Have him use an air impact : wrench on it. Three seconds, done. : :That's a great suggestion! THX! Air impact tools are over used in the auto shop, but they're not used enough in the bike shop. If you have compressed air, it's worth getting one. You don't need much air -- you'll only use the thing to remove stuff, and the duty cycle is "zip, done" -- so even a little compressor is enough. I'd say antying with a six gallon tank and 120 psi would be enough to be useful for that. -- sig 21 |
#15
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Removing a freewheel - no wheel rim
IF BUTCHERING DRILLING a hole hub hammer a solid pin thru that then mounting in a vise....
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#16
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Removing a freewheel - no wheel rim
heat old freewheels with an oxy torch...then pressure inward then twist out twist in twist out...you know lika nut.
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#17
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Removing a freewheel - no wheel rim
On Monday, July 28, 2014 7:13:09 PM UTC-4, wrote:
heat old freewheels with an oxy torch...then pressure inward then twist out twist in twist out...you know lika nut. Hey Gene, did you see Frank's post where he said he wants to use this freewheel and another post where he states he'd like to keep the hub undamaged too? Cheers |
#18
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Removing a freewheel - no wheel rim
Frank Krygowski wrote:
:On Monday, July 28, 2014 4:23:52 PM UTC-4, wrote: : On Mon, 28 Jul 2014 07:43:44 -0500, AMuzi wrote: : : Some guys prefer to half build the wheel on a scrap rim : using the left flange but there's a real risk of twisting : the hubshell so I don't suggest that. : : The OP doesn't care if the Campy hub is destroyed removing the : freewheel - It's just the SunTour Winner freewheel he wants to save. :Actually, I'd kind of like to keep the hub undamaged, too. I don't really :have a use for it, but I'm sort of a junk collector - if Campy hubs can be :considered junk. :I was pretty excited by the impact wrench idea, since one of my best :friends has a big compressor and impact set. But then I realized my :2-prong SunTour freewheel removal tool has just two flats in a :cylindrical body, rather than a hex body. :I suppose I could grind it to a hex, but at this point, it seems it :might be easiest to just half-ass build it into one of the old rims I own. :Fortunately, I'm sort of a junk collector. Park FR-2. Readily available from distributors, if not in many stores. ~$10. -- sig 64 |
#19
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Removing a freewheel - no wheel rim
On Monday, July 28, 2014 3:57:51 PM UTC-7, Frank Krygowski wrote:
On Monday, July 28, 2014 4:23:52 PM UTC-4, wrote: On Mon, 28 Jul 2014 07:43:44 -0500, AMuzi wrote: Some guys prefer to half build the wheel on a scrap rim using the left flange but there's a real risk of twisting the hubshell so I don't suggest that. The OP doesn't care if the Campy hub is destroyed removing the freewheel - It's just the SunTour Winner freewheel he wants to save. Actually, I'd kind of like to keep the hub undamaged, too. I don't really have a use for it, but I'm sort of a junk collector - if Campy hubs can be considered junk. I was pretty excited by the impact wrench idea, since one of my best friends has a big compressor and impact set. But then I realized my 2-prong SunTour freewheel removal tool has just two flats in a cylindrical body, rather than a hex body. I suppose I could grind it to a hex, but at this point, it seems it might be easiest to just half-ass build it into one of the old rims I own.. Fortunately, I'm sort of a junk collector. Unless I'm conceptualizing this wrong, an impact hammer is not going to prevent flange damage. You're still going to have to place the hub in a vice or other fixture and then apply force to the freewheel. And even if you build it in to a wheel, you'll need the right remover. I certainly would not build one with a grinder. You could try Muzi's approach but instead of using vice grips, use a strap wrench around the hub body. Considering the rim rotted off (how does that even happen?), the freewheel is probably welded to the hub, and a strap wrench won't do the trick. -- Jay Beattie. |
#20
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Removing a freewheel - no wheel rim
On 7/28/2014 6:04 PM, David Scheidt wrote:
AMuzi wrote: :On 7/27/2014 7:36 PM, David Scheidt wrote: : Frank Krygowski wrote: : :I was given an old Campy hub with a nice SunTour New Winner freewheel on : :it, all very low mileage. Since I still use this model of freewheel on : :a couple bikes, I'd like to get it off the Campy hub. : : :Trouble is, the rim is gone. It was a tubular rim that had corroded in : :two in someone's basement. That's why the hub it was given to me. : : :Before I track down a rim with a roughly correct diameter and : :temporarily build a wheel, anybody got an easier way to handle this? : :Wood blocks in a bench vise didn't do the trick. It just takes too much : :torque to crank the freewheel off. : : Take the hub, the correct freewheel remover, and the half inch drive impact : socket that fits the freewheel (Park tools are all (almost all?) 1") to your : auto mechanic. (A good mechanic is likely to have the right socket, but : having it handy saves time and effort.) Have him use an air impact : wrench on it. Three seconds, done. : :That's a great suggestion! THX! Air impact tools are over used in the auto shop, but they're not used enough in the bike shop. If you have compressed air, it's worth getting one. You don't need much air -- you'll only use the thing to remove stuff, and the duty cycle is "zip, done" -- so even a little compressor is enough. I'd say antying with a six gallon tank and 120 psi would be enough to be useful for that. Thanks again. One thing we have in plenitude here is air: http://www.yellowjersey.org/photosfr...st/aircomp.jpg -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
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