Vent: A customer's old Raleigh three-speed taught me about cottered cranks

This guy brought in a 1970s Raleigh with a wobbly crank, and I was about to tell him it was toast. He said, 'Just tap the cotters, son, they walk out over time.' I'd never actually seen that fix in real life, just read about it. Sure enough, a few light taps with a hammer and punch tightened it right up. It's wild how much old-school knowledge is still out there. Anyone have a good trick for removing a really stuck cotter pin without damaging the crank arm?

4 comments

4 Comments

tessap971mo ago

My shop teacher swore cotter pins were a dead skill. Honestly, seeing that old Raleigh fix itself with a hammer changed my mind. There's a lot of simple fixes we've just forgotten.

the_rose1mo ago

Grab a cheap pin punch set, makes pulling those old pins way easier without mushrooming the ends.

karenc201mo ago

That's a solid tip for sure. But honestly, sometimes you just need the right sized flathead and a steady hand. A punch set is one more thing to buy and keep track of in a messy toolbox.

miles_chen8d ago

Honestly a punch set is a game changer. I used to fight with a screwdriver and it just wrecked the pins. Now I can pop them out clean in one hit.