Author Topic: Buggered up crankshaft thread - How to fix  (Read 937 times)

Online terryg

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Re: Buggered up crankshaft thread - How to fix
« Reply #15 on: 14.03. 2017 13:14 »
Trev's tip sounds like a good'un.

"sounds a lot of work if a file does the same job though"

Using Trev's method there's every chance a lot of the distorted thread can be persuaded to reform. A file is only going to remove metal.

I've had success in the past using a small chisel and very small (!) hammer, to gently push deformed metal back into place, rather than file it away. Not so good for major distortion though.
Terry
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Online BSA_54A10

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Re: Buggered up crankshaft thread - How to fix
« Reply #16 on: 15.03. 2017 08:50 »
Don't blame me, it was a "penny fix" from 1949
Bike Beesa
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Online RichardL

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Re: Buggered up crankshaft thread - How to fix
« Reply #17 on: 15.03. 2017 13:41 »
If you saw a post here that is no more, it's because I reconsidered how much thread damage there might be. Is it more than just the lead in and next thread after that?

Richard L.
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Offline owain

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Re: Buggered up crankshaft thread - How to fix
« Reply #18 on: 15.03. 2017 23:22 »
Not that I can tell RichardL. It just seems to be the lead and a thread after that. I'm waiting on the file to arrive to clean it up and make it usable!
Sweden & North Wales
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