Heat88

I forgot to say that I didn't cross thread. I was worried about the puller's threads getting stripped. I didn't realize the arms were made of aluminum.

Is there a video that shows someone taking apart a crank like mine(whether or not they couldn't pull one of the arms off)? I found one or two videos, but the crank was different in those. There's no way I can remove the bearing and the other parts from the other side and push the shaft/spindle through? I want to at least see what I can't see because the chain rings are in the way.

Trakhak

From a 10-second YouTube search (a.k.a. Let Me Google That For You).

But it would make sense to give us some photos of your crank, the stripped threads, etc., at this point. The fact that you're still confused about what happened indicates that merely watching some videos might not help much.

choddo

That just plays an ad for me and then stops

Trakhak

Puzzling. Here's the search phrase I used:

how to use a cotterless crank extractor tool

smd4

You might have to scroll down past the ad. There’s a Park Tool video of Calvin removing a crank arm that’s been cut away so you can see the crank puller in action.

Heat88

[QUOTE=Trakhak;23173959]From a 10-second YouTube search (a.k.a. Let Me Google That For You).

But it would make sense to give us some photos of your crank, the stripped threads, etc., at this point. The fact that you're still confused about what happened indicates that merely watching some videos might not help much.[/QUOTE
I'm not confused about what happened. I'm confused by those questions. They're vague. One suggestion was that I stripped the threads just by turning the puller with the crescent wrench. :confused:

I was thinking about taking off the chain rings, but then I saw that the second one won't slide off the arm. Its behind the edge of the arm. :sad:


Ok. Here's the pictures. Why do you need pictures of the threads?

Heat88

No, its just the teeth on the big chain ring(which I use most of the time) that are sharp.

Kontact 

[QUOTE=Heat88;23174266]Yes, if the part of the puller that threads into the crank is not bottomed out in the crank and tightened firmly down with a wrench, when you turn the other part of the puller that pushes on the spindle it ends up pulling out the threads instead. This is the reason the puller has a place for a wrench on the part that goes into the crank - to get it tight and to loosen it when done.

choddo

I think this guy is less of a psychopath

choddo

Sometimes can still manoeuver it around the spider and off but on a triple, and that small ring isn’t going anywhere, doubtful.
Since you want to lose this crank anyway, I reckon it might be angle grinder time.

Heat88

I was just thinking maybe you guys would know keywords that I don't know about. Like the type of crank or crankshaft it is.

JoeTBM 

Either this guy is a troll or doesn't know how to search

Use a pickle fork

Try this older thread to find out

https://www.bikeforums.net/bicycle-m...t-useless.html

Heat88

I was able to get it with a crow bar! The funny thing is, right as I was about to give up, it calmly fell off. The second that it fell off I wasn't using every ounce of my strength. Maybe during previous attempts it moved a little.

Before that, after a previous attempt with the crow bar, I tried grinding it off with a grinding wheel on a drill and cutting it off with a hacksaw. They were working, but after a millimeter or two of progress, I ran out of energy. I also tried a soldering gun, but aluminum has a higher melting point than I thought LOL :embarassed:. I wanted to try a blow torch but I couldn't find my father's. I also thought of liquid nitrogen, which causes metal to shatter, which I don't have(Where do the extreme overclockers get it from, and what meterial is the plumbing in their cooling system made of that's immune to the freezing effects of liquid nitrogen?).

But now I have another problem. I can't get the other arm off(which I put back on because I had to use the bike) with the puller or the pedals off because I don't have leverage(I used a ratchet to put the black part on this time, so its on good and tight, and I have an Allen wrench instead of a crescent wrench this time to do the pulling). I don't know how I got the other arm off the first time. I had plenty of leverage the last time, but I don't remember where it came from.

I have a vise, but it's not mounted on anything because my father left the workbench it was mounted when we moved because he's downsizing in his old age. I'll try it for the pedals. It might be heavy enough for that eventhough it's not mounted. I might be able to put the vise on the floor underneath the pedal and have the arm push down on the vise for leverage to get the arm off.

choddo

Don’t you just hold the crank arm itself for leverage?

Heat88

I got everything removed, but this is embarrassing. I forgot to remove the bolt before I put the puller on.😂 :embarassed: :embarassed: That only happend this time by the way. Not the other times I used the puller.