Crank Puller Tool Mismatch?
09-13-19, 02:51 PM
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Crank Puller Tool Mismatch?
I am trying to remove the Sakae crank from a Schwinn World Sport (1987). The size of my puller seems right, but the threads on the puller won't catch. Are there different threads for the same size crank? I am using a Sunlite Series I Crank Puller.
09-13-19, 02:58 PM
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A Sakae crank should use a standard 22mm puller thread. Are the threads in the arm damaged?
09-13-19, 03:23 PM
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See if it fits the threads on the other side, they should be the same. Perhaps, as JohnDThompson suggests, the threads have been stripped. If so, the crank can be removed with Jacobs chuck wedges, #3 size IIRC.
09-13-19, 04:22 PM
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It's always hard to advise when you can't put your eyes and hands on something, but here goes:
First, have you removed the crank bolts? They would interfere with screwing the extractor in. If you have nutted spindles, they again may interfere with your tool. As stated above, your threads may be a bit messed up. Have you tried both sides? It's unlikely that the threads would be messed up on both.
Post some pictures when you have a chance.
First, have you removed the crank bolts? They would interfere with screwing the extractor in. If you have nutted spindles, they again may interfere with your tool. As stated above, your threads may be a bit messed up. Have you tried both sides? It's unlikely that the threads would be messed up on both.
Post some pictures when you have a chance.
09-14-19, 04:39 AM
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On closer inspection, it is the crank puller that is damaged, with a flattened thread. Problem solved! Thanks for the input, guys.
09-14-19, 07:12 AM
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you might be able to repair that damaged thread with a fine small triangle file, work it slowly
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09-14-19, 07:36 AM
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09-14-19, 07:43 AM
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09-14-19, 12:48 PM
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Even better: a Metric Thread File !
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09-14-19, 02:57 PM
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09-15-19, 07:18 AM
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Suggest you just replace that puller tool. It's steel. you'll be re-forming the extractor threads of any crank arm on which it is used.
Mark Petry
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09-15-19, 06:00 PM
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Not if the threads are repaired with the metric thread file referenced above. It's hardened steel and does a nice job on steel threads. I've repaired spark plug threads that would subsequently thread into an aluminum head with fingers only. No damage to the female threads.
09-19-19, 04:46 AM
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It was easy enough to send it back and get a good one. But thanks for all the ideas.
