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Old 02-10-07, 01:27 PM   #1
Little Leo
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I need this thing off pronto!!

I have this old X-mart bike that I am turning into a ski bike. I cant get the crank off however. I want to finish it tonight so some friends and I can take it out for some fun.

I can not get this thing off. I have looked thru all manuels with no luck.
Its old and crapy so distruction of it in the prosses of getting it of would be fine with me.
Can some one help?
Leo


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Old 02-10-07, 01:29 PM   #2
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Did you try spraying as much of it as you can w/ WD 40? That helped me remove hard-to-remove pedals.
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Old 02-10-07, 01:32 PM   #3
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Okay... You've got a few different ways.

Easiest and most expensive is a crank puller from your local LBS.

(Edited, hit post too early, damn myself!)
If you're cheaper, you can cut the arm off (Carefully!) at the spindle using your cutting tool that you can get in there of choice.

Some people loosen the crank bolt just a little bit then ride on it.
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Old 02-10-07, 01:50 PM   #4
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well you see it is just an old Xmart bike. It dosnt have real stuff to get it iff. Its looks like just one pice!

thanks for the tips so far. i will try the D-40 but its pretty cold.
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Old 02-10-07, 01:52 PM   #5
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the nuts are alrady off on the out side of the arms. pulling hammering is not doing any thing.
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Old 02-10-07, 02:16 PM   #6
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If you don't want to get a crank puller there's the ride it hard and the cutoff methods....
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Old 02-10-07, 02:40 PM   #7
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Quote:
Originally Posted by Little Leo
well you see it is just an old Xmart bike. It dosnt have real stuff to get it iff. Its looks like just one pice!

thanks for the tips so far. i will try the D-40 but its pretty cold.
Doesn't look one piece to me. Especially if there was a nut on the end. Go to your LBS and buy the $10 tool and this thread is over. Or you can go out for a (test) ride on those cranks and see if they'll come off.
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Old 02-10-07, 02:57 PM   #8
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PB Blaster works way better than WD40 for loosening parts. Home Depot or your local hardware store.
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Old 02-10-07, 06:24 PM   #9
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+1 on the PB Blaster.
The stuff is magical, really. Don't change auto disc brakes without it.
The best part is that the can advertises that it will melt a styrofoam cup, reducing it to a pile of goo. It does indeed do that!
j
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Old 02-10-07, 06:57 PM   #10
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Most back yard bike mechanics have a puller ask around. I once ran into a striped crank arm, puller would not work, its an easy cut with a dremel, then hit with a chisle, and your done, take off one side and just undo the other.
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Old 02-10-07, 08:49 PM   #11
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well, since you say breaking it is no biggie, you could cut it, you could take it for a hard ride (but be very careful as the arm could fly off at any time), Hammer and punch on the crank around the spindle (if this does not work, hit it harder.) Ive hammered off a square taper crank before, and its a *****, but it works.
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Old 02-10-07, 11:04 PM   #12
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Unless you have a high powered cutting apparatus, heat treated metals take a lot of effort to hack through, patience my friend. +1 on the PB Blaster or WD40 overnight and grab a hammer and using the backside(For pulling nails) Pry evenly and consistantly and eventually you might get it off. A bike shop might charge you. If you do not want to accidentally damage your frame, the easiest way is a grank puller
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Old 02-11-07, 12:06 AM   #13
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go to your local auto parts store and get a pickle fork. Its used to remove ball joints and works great on let crankarms too.
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Old 02-11-07, 08:45 AM   #14
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Sorry for leaving you all in the dark.
Thanks for all the help! I finaly got it out with a lot of work. We beat the dog mess out of it and the axel thing flu across the gurage and put a little hole in the gurage door. We torched it first.

Now I can finish my ski bike
Thanks Leo
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Old 02-11-07, 09:06 AM   #15
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With your keen eye for details, marvelous communication skills and teasingly persuasive mechanical touch you would be a shoe-in for a wrenching job at any number of local bike shops.
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Old 02-11-07, 11:40 AM   #16
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This might be an idiotic post, but I just was thinking - aren't there some left-handed threads on some of those bolts? Maybe you're tightening when you mean to be loosening? Okay, if I'm off-base, this was stupid, but there have been times when I've forgotten the existence of "backwards bolts".
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Old 02-11-07, 11:46 AM   #17
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yes there are some left handed threads. it was such an old bike that was never taken care of so it was impossable to remove the crank arms whithout extream beating.

sorry if i wasted your time. i am still learning.
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Old 02-11-07, 12:29 PM   #18
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Quote:
Originally Posted by Little Leo
Sorry for leaving you all in the dark.
Thanks for all the help! I finaly got it out with a lot of work. We beat the dog mess out of it and the axel thing flu across the gurage and put a little hole in the gurage door. We torched it first.

Now I can finish my ski bike
Thanks Leo
That is my method when the threads strip.
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Old 02-11-07, 03:00 PM   #19
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Glad you are ok.
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