Did I break my crankbolt?
07-16-07, 05:34 PM
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Did I break my crankbolt?
Hi,
This is going to sound bizzare, but I thought I had crank bolts when I replaced my square spindle crank. I greased and tightened 'em up good, but after a while i was getting a creak so i go to remove/regrase/retighten and the "head" of the bolt comes right off, leaving the thread. I assumed I broke it, but this happened on both bolts, and if I look closely there are threads in the "head" -- so i think what I thought was a bolt is in fact an small threaded axle and nut. Is that possible? Question is: can i still remove in the normal way? I thought the puller is supposed to pull against the end of the spindle, I can't pull against the end of the "bolt" can I? Or is it same difference?
Or did I just break it?
Thanks!
This is going to sound bizzare, but I thought I had crank bolts when I replaced my square spindle crank. I greased and tightened 'em up good, but after a while i was getting a creak so i go to remove/regrase/retighten and the "head" of the bolt comes right off, leaving the thread. I assumed I broke it, but this happened on both bolts, and if I look closely there are threads in the "head" -- so i think what I thought was a bolt is in fact an small threaded axle and nut. Is that possible? Question is: can i still remove in the normal way? I thought the puller is supposed to pull against the end of the spindle, I can't pull against the end of the "bolt" can I? Or is it same difference?
Or did I just break it?
Thanks!
07-16-07, 05:50 PM
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There are some (usually inexpensive) bottom brackets with "nutted" axles, that is the axle has a threaded stub at each end and the crank arms are held in place with a nut threaded onto the axle stubs. It sounds like that is what you have. A normal crank puller works on these just like on a bolted bottom bracket.
07-16-07, 06:21 PM
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Originally Posted by HillRider
There are some (usually inexpensive) bottom brackets with "nutted" axles, that is the axle has a threaded stub at each end and the crank arms are held in place with a nut threaded onto the axle stubs. It sounds like that is what you have. A normal crank puller works on these just like on a bolted bottom bracket.
I was just so used to tutorial photos showing bolts that I got confused with what I saw. . .
07-16-07, 08:30 PM
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Wasn't unusual for Sugino or Sakae cranks of the 70's and 80's to have nutted axles.
07-17-07, 12:03 PM
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Question is: can i still remove in the normal way? I thought the puller is supposed to pull against the end of the spindle, I can't pull against the end of the "bolt" can I? Or is it same difference?
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