Trouble removing crank arms.
#1
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From: NYC.
Trouble removing crank arms.
edit: Just accomplished removing my crankset. Appreciate everyone's advice. I feel like such an accomplished individual right now, learning and experiencing hands on to service my bike.
I've just received my tools today and when I tried to remove my crank arms with a Parks CCP-22 ccrank puller, the crank arms wouldn't loosen. I've properly screwed the puller on the threads of the crank arm and then proceeded to tighten it until it wouldn't go anymore, but my crank arms are not loosen like they should in all the youtube videos I've seen. I follow the steps exactly as demonstrated by the instructional videos and I've tried multiple times, but the crank arms just won't loosen. I've even tried tightening the puller in so hard that it left a circular impression of the puller tool in the crankarm. Am I doing something wrong here?
(this is a set of Sugino Messenger Cranks)


additional photos:



the tool (package indeed states CCP-22 Crank Puller):
I've just received my tools today and when I tried to remove my crank arms with a Parks CCP-22 ccrank puller, the crank arms wouldn't loosen. I've properly screwed the puller on the threads of the crank arm and then proceeded to tighten it until it wouldn't go anymore, but my crank arms are not loosen like they should in all the youtube videos I've seen. I follow the steps exactly as demonstrated by the instructional videos and I've tried multiple times, but the crank arms just won't loosen. I've even tried tightening the puller in so hard that it left a circular impression of the puller tool in the crankarm. Am I doing something wrong here?
(this is a set of Sugino Messenger Cranks)


additional photos:



the tool (package indeed states CCP-22 Crank Puller):
Last edited by Thirteen.; 12-30-10 at 08:30 PM.
#3
Senior Member
Joined: Dec 2010
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From: Michigan
Bikes: Old ones.
I read on Sheldon Brown's website to remove a stubborn arm.. remove the bolt that holds it in place (you've already done) then just ride it around for awhile and the arm will loosen up and come off. If you want to reuse the arm, then stop riding soon as it gets loose or you can easily ruin the tapered fit.
#4
It can be tight to get it started.
I'm not to sure how the puller can leave a "circular impression on the crank arm".
After you install the body into the crank threads, you need to screw in the center part to push against the end of the spindle.
Maybe a photo of the puller installed and ready to use can give us an idea of the problem.
I'm not to sure how the puller can leave a "circular impression on the crank arm".
After you install the body into the crank threads, you need to screw in the center part to push against the end of the spindle.
Maybe a photo of the puller installed and ready to use can give us an idea of the problem.
#5
GONE~
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I read on Sheldon Brown's website to remove a stubborn arm.. remove the bolt that holds it in place (you've already done) then just ride it around for awhile and the arm will loosen up and come off. If you want to reuse the arm, then stop riding soon as it gets loose or you can easily ruin the tapered fit.
He just need to really get it going at first then after that it's smooth sailing.
#8
Your cog is slipping.



Joined: May 2009
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From: Beverly MA
Bikes: EAI Bareknuckle
That's what I was thinking too, especially seeing that it put an indent like that in the crank arm (you can see it right around the square cutout in the 2nd pic).
Thirteen - take a pic of your crank puller and post it so we can see what you're working with.
Thirteen - take a pic of your crank puller and post it so we can see what you're working with.
Last edited by Scrodzilla; 12-30-10 at 06:57 PM.
#9
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From: Ciudad de Vacas, Tejas
Bikes: 34 frames + 82 wheels
One of the flaws of the Park CCP-22 tool is that the arm is relatively short and offers little leverage. I've have problems removing some crank arms with mine and attached a pipe cheater bar to it to get the needed leverage. I used to use a Campy puller, which has a hex end for use with a wrench, and would use a wrench twice as long as the Park CCP-22 arm. Remember that a properly tightened crank arm bolt will be tightened to about 400 in-lbs (33 ft lbs), which means about 80 lbs applied to the tool, since it's lever is about 5" at the center if force applied by your hand.
Also, if the crank arm was installed w/o grease or anti-seize on the spindle, it can get super tight to the point where to intially break it loose you may need much more force. It looks from your second photo like the crank has been pulled in almost all the way on the taper, where the end of the spindle is almost flush with the crank bolt seat. If that's the case, that crank arm may be close to the end of its service life.
Also, if the crank arm was installed w/o grease or anti-seize on the spindle, it can get super tight to the point where to intially break it loose you may need much more force. It looks from your second photo like the crank has been pulled in almost all the way on the taper, where the end of the spindle is almost flush with the crank bolt seat. If that's the case, that crank arm may be close to the end of its service life.
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Last edited by TejanoTrackie; 12-30-10 at 07:56 PM.
#10
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From: NYC.
Updated with new photos. I'm pretty sure I'm using the correct tool as the package states it is a CCP-22 Crank Puller and the reverse side of the package states it fits most square tapered cranks. I'm supposed to be using the tool without the tip cap right? I've been using it without the tip cap.
#12
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From: Ciudad de Vacas, Tejas
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Wrong!
#14
I was going to start out by saying to heat up the crank arm good (just the arm) to expand the aluminum. But, I think I would first use a penetrating oil as liquid wrench or BP blaster and let it soak for a day to hopefully get into the joint.
I do not know how a 2 jaw gear puller would work as I did not have good luck using my small one before buying the right puller.
Tom
I do not know how a 2 jaw gear puller would work as I did not have good luck using my small one before buying the right puller.
Tom
#15
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From: Ciudad de Vacas, Tejas
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#16
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From: NYC.
TejanoTrackie - Thanks, I've just gotten it off. I think the combination of my not using the tip previously and lack of good leverage caused it to not work. Now that I've messed with it a few times with the tip cap on as well as getting my brother to help as we both push the cranks in opposite directions, the tool was able to go in further and I actually got my cranks to loosen. I feel like such an accomplished individual right about now, being able to learn and experience and service my bike.
Thank everyone who has contributed their words of advice.
Thank everyone who has contributed their words of advice.
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