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@olik
You want an old timers advice on cottered cranks?
Get yourself a cotterpin press and extractor. £7/8 or so from Machinemart. They are called Ball Joint Splitters. They work great on cotters, in or out.
Here's mine. Never failed yet. On all sorts of old bikes.
You still need to fit a new cotter correctly of course, but taking an awkward so & so out and pressing it back in is no problem.
DON'T ever use hammers, no matter what Sheldon Brown says.
Should be obvious how it works, but if you not sure I'll explain in detail if you ask..
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