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my pedal is rusted and I can't get it off. I have to get it off so I can replace the bent pedal. HELP!!!!!!!
Dear all:
I have a beloved BMX type old bike that I take to work everyday. You can see it at http://gallery.pethobbyist.com/index...91190&size=big .. It is the bike in the picture. I dropped it the other day and the pedal is bent. I have been trying to get it off. From what I read, the right paddle is right threaded (so it is just like a screw) and the left one is left hand threaded. The pedal I am trying to take off is the right pedal. I read that you should have the pedal forward (ie the crank should be parallel to the ground and pointing to the front of the bike). Then apply wrench (handle of the wrench should be toward the rear of bike) to the pedal and push down on the wrench. This should loosen the paddle. I tried it with a crescent wrench and I nearly rounded off the head of the bolt and couldn't get the paddle to budge one bit. What should I do? I really love the bike and want to use it to get to work everyday. I live on an air force base and biking is the perfect transportation (see http://gallery.pethobbyist.com/index...91190&size=big ). Do you think a bike shop would be my next step? Will they be able to help me take the old rusted pedal off? please help. I really need it. |
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my pedal is rusted and I can't get it off. I have to get it off so I can replace the bent pedal. HELP!!!!!
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my pedal is rusted and I can't get it off. I have to get it off so I can replace the bent pedal. HELP!!!!!!!
On 5 Sep 2003 12:56:06 -0700, (wanglu) wrote:
Dear all: I have a beloved BMX type old bike that I take to work everyday. You can see it at http://gallery.pethobbyist.com/index...91190&size=big . It is the bike in the picture. I dropped it the other day and the pedal is bent. I have been trying to get it off. From what I read, the right paddle is right threaded (so it is just like a screw) and the left one is left hand threaded. That's right. Are you sure that it isn't the crank that is bent? I have seen the pedal eye of the crank bend while leaving the pedal unaffected (referring here to one piece cranks): http://sheldonbrown.org/gloss_m-o.html#opc The pedal I am trying to take off is the right pedal. I read that you should have the pedal forward (ie the crank should be parallel to the ground and pointing to the front of the bike). Then apply wrench (handle of the wrench should be toward the rear of bike) to the pedal and push down on the wrench. This should loosen the paddle. Yes. You would hold the right pedal with your other arm. You want to avoid mashing your hand into the chainring teeth, er...cogs. I tried it with a crescent wrench and I nearly rounded off the head of the bolt and couldn't get the paddle to budge one bit. This is not surprising, pedals often get extremely tight just from riding. You need to make sure that the wrench fits properly - a crescent wrench will typically be too wide to fit in between the crank and the pedal; wrenches sold for this purpose are narrower for this reason. You may also need to take a blowtorch to the crank. What should I do? I really love the bike and want to use it to get to work everyday. I live on an air force base and biking is the perfect transportation (see http://gallery.pethobbyist.com/index...91190&size=big ). Do you think a bike shop would be my next step? Will they be able to help me take the old rusted pedal off? please help. I really need it. Any decent local bike shop will have dealt with stuck pedals hundreds of times and they will get it out. If you need to buy new pedals there anyway they probably won't charge much to do the whole job for you. Note: some pedals have 1/2" spindles, some 9/16" (yours are probably 1/2"). Remember to apply grease to the threads when installing the new pedals and make sure not to cross-thread them. -- Chris Bird |
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my pedal is rusted and I can't get it off. I have to get it off so I can replace the bent pedal. HELP!!!!!!!
15 mm cone wrench vs. 15 mm pedal wrench
check out the pedal renawvel method in "diy bike cable luber"!! itsa winner. rec.bicycles.tech - May 13, 2003 by g.daniels - View Thread (10 articles) |
#6
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my pedal is rusted and I can't get it off. I have to get it off so I can replace the bent pedal. HELP!!!!!!!
thank you everyone for the responses. It is an old bike but a great
bike that has taken me around to many places and rolled many miles. I am printing out the response so taht I can try the things on the list one at a time (there are too many good suggestions to just go by memory alone). If I print it out, I can take my time and go down the list. I will let everyone know how it turns out. (I especially liked the suggestion of the auto-hobby shop on base. That one is pertinent to me because I do live on an air force base and we do have an automobile hobby shop. I just didnt' think of it when I thought of fixing a bike. Great call!) sincerely Longtang Werehatrack wrote in message . .. On 5 Sep 2003 12:56:06 -0700, (wanglu) may have said: Dear all: I have a beloved BMX type old bike that I take to work everyday. You can see it at http://gallery.pethobbyist.com/index...91190&size=big . It is the bike in the picture. I see that, not surprisingly, it has an old-style steel one-piece crank; at least the unit's easily and inexpensively replaced if stern measures don't produce success. I dropped it the other day and the pedal is bent. I have been trying to get it off. From what I read, the right paddle is right threaded (so it is just like a screw) and the left one is left hand threaded. The pedal shaft is unusually hard to bend, but I assume you've checked to see whether it's really the pedal or the crank that's bent. The pedal on the chain side is, indeed, right-hand threaded. I tried it with a crescent wrench and I nearly rounded off the head of the bolt and couldn't get the paddle to budge one bit. Not surprising. The average crescent wrench is much more effective at rounding things off than most people realize; its jaws flex too much. If your base has an automotive hobby shop, drop over there and see if somebody has a regular open-end wrench of the appropriate size to fit the flats on the pedal shaft. If that doesn't work, and if there's not a local bike shop that you can take it to, then what I would try (in order) is this: First, apply a penetrant to both ends of the thread, wait about an hour, and try the right wrench again. Second, heat the end of the crank with a propane torch (stopping before the metal gets hot enough to change color) and try the right wrench again. Third, since the pedal's going to be discarded anyway, with whatever appropriate tools are available, cut the outward end of the pedal off to allow the rotating part to come off the shaft, and then try to get a big pipe wrench onto the pedal's shaft to turn it. If this doesn't work, you're getting perilously close to replacing the crank. Fourth, using a pair of medium-sized ball-pien hammers, with one positioned on one side of the end of the crank, use the second to strike the other side of the end of the crank to try to break up the corrosion that may be present; three good hits should be enough, and if it doesn't come loose with a wrench after that many impacts, the technique is probably not going to be successful without doing more damage than good. At that point, I'd just replace the crank. BMX bikes often use a crank with shorter arms than a regular-size bike, but a regardless of the length, a one-piece crank for your bike is commonly available for a relatively low price, and installation is not rocket science. |
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my pedal is rusted and I can't get it off. I have to get it off so I can replace the bent pedal. HELP!!!!!!!
"wanglu" wrote in message
om... Dear all: I have a beloved BMX type old bike that I take to work everyday. You can see it at http://gallery.pethobbyist.com/index...91190&size=big . It is the bike in the picture. I dropped it the other day and the pedal is bent. I have been trying to get it off. From what I read, the right paddle is right threaded (so it is just like a screw) and the left one is left hand threaded. The pedal I am trying to take off is the right pedal. I read that you should have the pedal forward (ie the crank should be parallel to the ground and pointing to the front of the bike). Then apply wrench (handle of the wrench should be toward the rear of bike) to the pedal and push down on the wrench. This should loosen the paddle. I tried it with a crescent wrench and I nearly rounded off the head of the bolt and couldn't get the paddle to budge one bit. What should I do? I really love the bike and want to use it to get to work everyday. I live on an air force base and biking is the perfect transportation (see http://gallery.pethobbyist.com/index...91190&size=big ). Do you think a bike shop would be my next step? Will they be able to help me take the old rusted pedal off? please help. I really need it. A pedal wrench is pretty long compared to a medium sized adjustable wrench. Guys who've been wrenching in bike shops for a while ( look for grey hairs) know how to position the work and the wrench, know how to hold themselves, how to move things with less than excessive muscle. If there is such a person near you, consult him or her. I know I move things here that my younger broad-shouldered staff cannot - it's leverage more than muscle sometimes. Moreover, if it's stuck, an experienced wrench twister will usually be able to get it out without ruining the crank. And since you're following the other thread about pedals falling out, you know to lube the threads next time, right? -- If you want to try it yourself, I would get the bike's BB between elbow and shoulder, top tube at 45 degrees pointed away from you. Left pedal up, right pedal down. Position the pedal wrench parallel or slightly askew to the cranks and push the left crank with your left hand while pulling the pedal wrench on the right pedal with your right, the rear tire against your body. I know that sounds like bicycle ballroom dancing but really that should do it with a modicum of force unless something is awry. -- Andrew Muzi www.yellowjersey.org Open every day since 1 April, 1971 |
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