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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 06-30-11, 07:19 PM   #1
amymorina
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Did I screw up cranks beyond repair?

Last night when I was removing my cheap origin 8 cranks I ran into some problems. The nut screwed in nice and easy and I tightened it pretty well in there and then I would screw the internal part in there and tighten that as much as I could with the wrench and nothing would budge.

I tried this several times with the same results so I finally decided to lube it up real good and use as much force as I had too. I finally got one crank off, but I am scared I damaged it. I didn't strip the threads ( the nut still laces perfectly in it) but it seems like I actually screwed the internal part so far in that it screwed into the square spindle part and made threads.

Can I still put this crank back on the spindle? Will it still fit snuggly and will I be able to remove it when I need to? It seems like I am going to run into the same problem with the other crank, how can I avoid this?
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Old 06-30-11, 07:26 PM   #2
Al1943
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Can't tell from the pictures.
Try them and see?
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Old 06-30-11, 07:30 PM   #3
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Hmmm +1 with the previous poster, put them in and see if they get lose. Doesnt look like u screw them up that much because usually the BB doesnt get too far out so you could be ok. As for the bolt and washer hope are ok or u will need new ones.

BTW find cranks with jis squared tapper is pretty cheap now. In ebay u can get a pair maybe for 20 bucks, try them 1st them go to ebay if did not work well u know.

Good luck.
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