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Old 03-06-07, 02:55 PM   #1
DavidInAtl
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OK. I'm an idiot. How come I can't get these off?

Seems like they should pop right off. Can someone please tell me why they aren't?

Thanks.
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Old 03-06-07, 03:00 PM   #2
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You need a crank puller.

Something like this: http://www.parktool.com/products/det...6&item=CCP%2D2

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Old 03-06-07, 03:05 PM   #3
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You need a crank puller

You need one of these:

http://www.nashbar.com/profile.cfm?c...All%20Products
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Old 03-06-07, 03:06 PM   #4
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Yep. And you'll be amazed how little effort it takes once you use it.
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Old 03-06-07, 04:00 PM   #5
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Just make sure the threads on the cranks are clean and the puller is screwed in as far as it will go, otherwise you might trash the threads on the cranks...

- Wil
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Old 03-06-07, 04:31 PM   #6
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Quote:
Originally Posted by Wil Davis
Just make sure the threads on the cranks are clean and the puller is screwed in as far as it will go, otherwise you might trash the threads on the cranks...

- Wil
yep, I ruined a perfectly good crank this way!
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Old 03-06-07, 04:50 PM   #7
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Originally Posted by divineAndbright
yep, I ruined a perfectly good crank this way!
You're not the only one!

Come on... we've all done it once... once, and ONLY once.
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Old 03-06-07, 04:56 PM   #8
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Originally Posted by splytz1
You're not the only one!

Come on... we've all done it once... once, and ONLY once.
I haven't... I paid attention to the warnings here at BikeForums.net.
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Old 03-06-07, 05:15 PM   #9
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The first set of cranks I ever removed was with a hammer and large screwdriver, what a butcher I was in my teens!
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Old 03-06-07, 05:33 PM   #10
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On my first set, I pulled the driveside crank off skillfully, but clouded by newfound success and lack of sleep (I think it was near 2 a.m. at the time), I tried pulling the left crank off with the bolt still secured. Doh! Don't forget to remove the bolts! (It appears you're a step ahead of the game there.)
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Old 03-06-07, 05:44 PM   #11
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Quote:
Originally Posted by divineAndbright
yep, I ruined a perfectly good crank this way!
Surprised I didn't once when I forgot to remove the crank bolt washer. I was torquing hard on that puller too before the lightbulb finally flashed on.
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Old 03-06-07, 05:55 PM   #12
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Quote:
Originally Posted by nick burns
Surprised I didn't once when I forgot to remove the crank bolt washer. I was torquing hard on that puller too before the lightbulb finally flashed on.
I've done that. I've also forgotten to remove the crank bolt washer, which meant the puller couldn't get enough grab. I can't say I've stripped any cranks doing that, but it wasn't one of my better moments.

Neal
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Old 03-06-07, 06:13 PM   #13
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Quote:
Originally Posted by splytz1
Come on... we've all done it once... once, and ONLY once.
Uhh, *cough* TWICE over here...
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Old 03-06-07, 06:13 PM   #14
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I've stripped at least 10 cranks! I hold the record!!!!! (never good cranks though!)
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Old 03-06-07, 07:04 PM   #15
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Once. I was working while wearing my "beer goggles".
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Old 03-06-07, 07:53 PM   #16
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Once. I was working while wearing my "beer goggles".
I never work on less than 2 guinessessess!!!!!!!
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Old 03-07-07, 08:20 AM   #17
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Ill get one off and the other will strip. Ive come to the conclusion its the luck of the draw. Am I tightening to much Im always careful not to strip it. Ive even went out and bought another one thinking it maybe machined wrong. Glade I saw this any pointers.
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Old 03-07-07, 08:26 AM   #18
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Guess I've been lucky, haven't stripped one yet - but I have stupidly kept trying to thread the remover further in after it's seated instead of turning the extractor screw (probably beer).
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Old 03-07-07, 09:02 AM   #19
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I injured a set of TA cranks with a Shimano puller, but not terminally. That's been my worst crime so far. Half the threads are still there.......
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Old 03-07-07, 09:22 AM   #20
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I guess I should admit that when I pulled the crank off of Corky I didn't have a TA crank puller so I did it destructively after trying two generic gear pullers from the auto parts store, which resulted in two bent gear pullers...

But using a legitimate crank extractor, I have always been able to do it right based on warnings here to make sure it was threaded in all the way.
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Old 03-07-07, 10:04 AM   #21
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Make sure the pusher part of the puller(the bolt on the inside of it), is backed waaaaay waaaay off when you screw the puller in. I've heard about folks who have managed to strip the threads off a crank because they didn't back it off-they just assumed the threads were a bit grungy, and grabbed a longer wrench to finish screwing it in. NOW, OF COURSE,I'VE NEVER DONE THAT, BUT I HAVE HEARD OF FOLKS DOING IT!! In fact, one person actually managed to strip a rare motorcycle flywheel by doing this!!! Needless to say, that flywheel can never be removed, so the entire motor is trash.If the motor was worth more than $150 I could have gotten a machine shop to do their magic, but it wasn't.
Luck,
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Old 03-07-07, 10:08 AM   #22
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One of the pullers below should do it, or certainly shouldn't bend if they don't do it. I've used them with success before on a crank which already had a stripped thread, and they're cheap. Edit: for clarity, this is a response to LittleDarwins point about bending gear pullers. Favourite tool for removing those is still a proper crank puller - this is for emergencies only!


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Old 03-07-07, 01:57 PM   #23
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Quote:
Originally Posted by DavidInAtl
Seems like they should pop right off. Can someone please tell me why they aren't?

Thanks.
I was that idiot once...

Those cranks look good btw
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Old 03-07-07, 04:51 PM   #24
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Thanks everyone. I'm glad I asked. I've not damaged them trying to get them off yet but..... I was almost to that point infrustration. I'mm actually going to do a 3rd option. I called my not so local LBS and for less than the cost of a puller, they will pull them for me. $5 dollars to pull them. And we already know they have the right one. Going over to buy another bike anyway. We are at 5 keepers and counting. (They count if they are complete but in pieces right?) We have another 4 going in for chairity.
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Old 03-07-07, 07:09 PM   #25
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Quote:
Originally Posted by Wil Davis
Just make sure the threads on the cranks are clean and the puller is screwed in as far as it will go, otherwise you might trash the threads on the cranks...

- Wil
Yeah, I almost stripped one last Tuesday because I wasn't careful to screw it all the way in. As it is, I damaged the two of the outer threads. I've never stripped one, so I was getting too sure of myself. As for trying to remove the crank while the retainer bolt was still screwed in, yeah been there done that, once, just like the man said.
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