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Old 06-28-07, 06:05 PM   #1
alumrock12
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Help me please.

i'm absolutely clueless now.

i've tried everything, hammering, sledge hammering, crowbarring, heating, pulling, yelling. oh, and i've also ridden it around town for about a month and a half without the crankretainingbolt...

this stupid crank arm just WON'T come off!!! I went to my LBS, and knowing how useless they are, they just said "i'll charge $30 to cut it off, my labor rate is $45 an hour... so ya know, its just annoying work" ... screw them, i'll cut it off myself for free!

well, 2 hours later, i'm still stuck. Can anyone think of a way to get this off easier? should i just go find a rotary saw and cut it that way? B/c right now, i'm out of juice.



anyway, i figure i'd mind as well turn this into my project build thread also... b/c thats this bike...


heres my artwork i'm planning to put on in gloss (not sure what color). its going on top of a matte finish (not sure what color) on the frame.
finalweb.jpg

i'm planning to sand down the frame, as soon as i get this dang crank off. then rattlecan it.

props to pete for intro. me the name...
props to aballas for the gloss on matte idea...

Last edited by alumrock12; 06-28-07 at 08:01 PM.
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Old 06-28-07, 06:30 PM   #2
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sawzall or some thing alike
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Old 06-28-07, 07:43 PM   #3
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Crank Puller
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Old 06-28-07, 07:51 PM   #4
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Quote:
Originally Posted by Mr. Smashy
Crank Puller
...thats how i got the driveside out. but its also how i stripped the threads of the crank on the non driveside.
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Old 06-28-07, 07:54 PM   #5
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Hacksaw with a blade for aluminum/hardened aluminum.
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Old 06-28-07, 07:58 PM   #6
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(No idea if it'll work or help) Try getting on the bike, feet on the pedals, left foot back right foot front, and jump up and down on it to reverse the way you've been pedaling on it.

Before you do this, try putting some WD40/Triflow in there.

If that loosenes it up, you might be able to pry it off with a crowbar or something. Without crankpullers, your kinda f-ed.
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Old 06-28-07, 08:19 PM   #7
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Why not leave the crank on???????????????
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Old 06-28-07, 08:23 PM   #8
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use a hacksaw to cut through the arm right up to the spindle, the pound a chisel into the cut to spread the taper enough to pull it off. It worked on my first conversion when I forgot to buy a crank puller.
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Old 06-28-07, 08:26 PM   #9
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Torch it and then beat it super hard with a rubber hammer
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Old 06-28-07, 08:27 PM   #10
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Quote:
Originally Posted by c_m_shooter
use a hacksaw to cut through the arm right up to the spindle, the pound a chisel into the cut to spread the taper enough to pull it off. It worked on my first conversion when I forgot to buy a crank puller.
well i have a crank puller, its just that its so tight i ended up stripping the threads.

Quote:
Originally Posted by FreeRidin'
Why not leave the crank on???????????????
i don't wanna leave it on because i already have one that i'm putting on that i like better
plus, lol-the things already half way hacked. but i still can't split it... what do i use to wedge in the crack?
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Old 06-28-07, 08:32 PM   #11
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There are so many ways I could get that off if it were in my garage right now. I bet that bike shop would have had it off by now too. Oh well.. good luck.
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Old 06-28-07, 08:33 PM   #12
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Are you going to make the bike a fixed gear??

Quote:
Originally Posted by alumrock12
what do i use to wedge in the crack?
Ummm...anything strong and flat.

Screw driver, chisel, crowbar....
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Old 06-28-07, 08:41 PM   #13
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Quote:
Originally Posted by FreeRidin'
Are you going to make the bike a fixed gear??


Ummm...anything strong and flat.

Screw driver, chisel, crowbar....
wasn't planning on fixed gear... why? is it b/c you saw no brake levers?
fixed gear ratios, singlespeed idea, city cruiser purpose.

Quote:
Originally Posted by mcoine
There are so many ways I could get that off if it were in my garage right now. I bet that bike shop would have had it off by now too. Oh well.. good luck.
thx, but lol... i personally don't wanna pay $30 for something that'll take them 5 min. when i could just call up a friend with a "powerhacksaw" and do it myself...

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Old 06-28-07, 10:41 PM   #14
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Originally Posted by mcoine
There are so many ways I could get that off if it were in my garage right now. I bet that bike shop would have had it off by now too. Oh well.. good luck.
+1.... I would've had it off by now since the post.

BTW...anyone notice his gearing?
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Old 06-28-07, 10:46 PM   #15
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Quote:
Originally Posted by Quick_Torch C5
+1.... I would've had it off by now since the post.

BTW...anyone notice his gearing?
yes i know its effing crazy. plus, there weren't any brakes for a long while. it was fun

but it was such a good workout... even though it was tough to get started, it helped pay off when i jumped back on the mountainbike. and... i did say, its a bike with fixedgear ratios, singlespeed idea, city cruiser purpose....



oh, feel free to shout out these "techniques" that would've helped you get the thing off "by now since the post"...
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Old 06-28-07, 11:32 PM   #16
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Me, I'd probably very judiciously apply the cutting torch as long as I was sure I wasn't going to use the crank or bottom bracket again.

Otherwise, do you have access to automotive shop tools? two- or three-jawed gear pullers can work in situations like that quite handily.
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Old 06-28-07, 11:34 PM   #17
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Originally Posted by dminor
Me, I'd probably very judiciously apply the cutting torch as long as I was sure I wasn't going to use the crank again.

Otherwise, do you have access to automotive shop tools? two- or three-jawed gear pullers can work in situations like that quite handily.
haah, i've already started hacking away. I'm thinking I might go over to a friends and see if i can borrow a gear puller, because that seems easier than sawing away at it.
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Old 06-28-07, 11:37 PM   #18
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Quote:
Originally Posted by alumrock12
haah, i've already started hacking away. I'm thinking I might go over to a friends and see if i can borrow a gear puller, because that seems easier than sawing away at it.
Quite true - - you'll end up burning through a few blades doing that. Spindles should be tempered tool steel.
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Old 06-28-07, 11:39 PM   #19
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+1 for torching it. just because that would be hilarious
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Old 06-29-07, 12:01 AM   #20
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+1 for torching it. just because that would be hilarious
You just have to be careful and protect the frame - - the aluminum tends to splatter everywhere when you hit it with the oxygen jet
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Old 06-29-07, 12:02 AM   #21
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Quote:
Originally Posted by dminor
You just have to be careful and protect the frame - - the aluminum tends to splatter everywhere when you hit it with the oxygen jet
yea, i'll probably just try the gearpuller...


has no one seen my macromediafireworks skills? the crackandfail logo?
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Old 06-29-07, 12:19 AM   #22
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Quote:
Originally Posted by alumrock12
yea, i'll probably just try the gearpuller...


has no one seen my macromediafireworks skills? the crackandfail logo?
Saw it - - didn't realize it was a clickable link. Fun.

I work in Adobe CS myself.
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Old 06-29-07, 08:09 AM   #23
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Jaws of Life will definitely get it off
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Old 06-29-07, 09:22 AM   #24
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Quote:
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Jaws of Life will definitely get it off
Haha! Too true. I love playing with those - - one of the perks of being on a volunteer fire dept
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