How To Remove Stuck Crank Cotter Pin With A Hammer On Vintage Bike
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- เผยแพร่เมื่อ 18 ธ.ค. 2013
- I show how to remove a stubborn wedge cotter pin from a cottered crank using a hammer. This bike is a 1969 Raleigh, so the cotter pin may have been in there for 45 years.
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I know I'm late to this, but you're a legend! I'm working on my dad's old Peugeot from the 70s, teaching myself how to do bike mechanics along the way. This helped so much!
thank you so muchs every time i need to find somthing on youtube about my bike you have all the right videos for me
I used the C Clamp and socket over the pin just today on a 67 Dunelt. I’ll need new pins but those are obtainable. I had not seen the block of wood method before. That’s a keeper.
Excellent work! Thanks for sharing!
What I do, is go to HF and buy a six
inch metal “C” clamp (around four dollars), Next lub everything
(on the cotter pins) up with PB Blaster. Now get a socket that is
bigger then the head of the cotter pin. Hold the “C” clamp so
that the socket is on one inside end of the clamp (position over the
head of the cotter pin) and the other end of the clamp is on the
loosen nut of the cotter pin. The idea is, as you apply force, by
tightening the “C” clamp, the head of the cotter pin is moved
into the open inside space of the socket. This should work even if
the cotter pin is bent. Three final thoughts, one is loosen the nuts
as the video shows. Second, is you might have to use a small brass
drift to tap out the pins when they are almost out but still stuck
inside the cranks. Third, is use a pair of vice grips on the “C”
clamp if you run out of torque. Take your time!
you rock RJ....thank you man
Absolute genius idea. It worked. Thank you 👍
I like it! Thanks for posting.
Looks like a great meathod! I'll have to try it out. I've alwayd had luck with a c-clamp and a socket. A couple of shots from a hammer on the top of the clamp if its stubborn usually does the trick.
Great video. The only thing I don't like is smashing the crank with the hammer head. I would use a wood block to protect the chrome plating.
I've watched most of your videos.. unfortunatelly, i decided to watch this one after i bent, and eventually broke the pin in half :D Keep up with the good work, greetings from Croatia ;)
DAMMIT i should have watched this first... I mooshed the thread
Greetings from Rotterdam, that was really helpful, nice suggestions in there. Gonna try. Thanks.
I learned about Liquid Wrench, you refer to it as penetrating oil, many years ago. I've had many stubborn parts succumb to its persuasion. In this instance, it didn't seem to work its usual magic but we'll never know what the outcome would have been here without it. I'm sure it helped. The way the crank just glided off the spindle can surely be attributed to it---that, and the vibrations that all that banging produced, allowed the solvent to penetrate.
Awesome videos, very helpfull!
Thanks! Couldn't get any videos of what I was looking for. Confirmed my method working on my 1960 BSA C15 Star.
One time my crank started to get some play in it. I rolled into the nearest bike shop and said i needed to borrow a couple of hammers. I held one on the back side of the crank to absorb the shock and tapped on the pin with the other. Then I took up the slack on the nut and I was good to go.
Thx for the help buddy! Ill go try this out on my unicycle
Can I somehow put another type of crank (standard bdc and 4 bolt so I can replace chainring when worn out) except the stock with the wedge, on this type of bb? Thanks.
Thx. I appreciate your help
When I bought a used three speed in Norfolk, Virginia in 1969 the bike shop had a set of pincers similar to bolt cutters for removing and replacing crank pins. I got to use it. A lot nicer than using a hammer which I had done many times.
Not familiar with those. There used to be some tools that worked like C Cla,ps. but they are out of production. You can find them used on ebay.
Yup, a real mechanic here.
what type of wrench do you need in order to remove the silver plate with notch on it? My bike is a british raleigh too, don’t know what size to buy
That was a clever trick.
my boss had a box of pins, sprayed some WD in the pin hole, knocked em out! sorry about my earlier reply, didn't know they were replaceable, still didn't agree with the hammering on the side of crank, as im trying to preserve two delicate and rare bikes
Will attempt this method.
Perfect. I have a 70 Raleigh with both pins stuck. I think k all these bike have this issue. Schwinn had a much better setup with those wonderful single piece cranks.
Big big.......... thaks to you
Thank you! I wasn't even sure what the terminology was for these parts until I found your video.
My suntour centurian had the cotter pin's threaded end come off with the bolt (my fault for over tightening). I'm going to try placing a small chisel on the remaining part of the pin and using your hammer technique to free it up.
Now to find a place to buy a new cotter pin...
Check this vid out: th-cam.com/video/9Qc2wzyeXk0/w-d-xo.html
Good luck to my local bike shop… might have to tip the mechanic after I get my bike back… LOL
I always use a car ball joint splitter for cotter pins.
just tried that/couldnt get ball joint splitter to line up right or stay on. that was on a mk1 chopper...so no good on these bikes
Brilliant videos. Thank you. I had a stuck stem and your method of tapping the bolt to free up the clamp worked perfectly. Unfortunately I'd already mushroomed the cotter pins in the crank but on another bike the methods in this video worked perfectly.
how did you get the mushroomed cotter pins out ??
F McEwan I don't know about MokeyShred, but I ran into one cotter pin that just would come out using either of my normal methods. I ended up drilling down through the cotter pin. You can see it at about 2:30 in this video: Overhaul Bottom Bracket On Vintage Peugeot Bike
Is it ok to reinstall using the same cotter pin or would you go for new pins?
If the threads are not mangled, you can reuse it.
Thank you for the super quick reply & detailed vids
How do you get one out if the SEIZED pin is bent slightly on the threaded portion??
Same thing, or you might have to drill it out. You can get replacement pins. You will have to file them down to match the angle of the original.
@@RJTheBikeGuy any tips on drilling out a cotter pin? I tried the hammer method and ended up fusing the nut to the bolt so I think I'll need to drill it out now. thanks.
Hello I have a Peugeot PX 10 frame I found in the trash. The cotter pins are both really jammed inside and there is no way to remove them. Do you have a suggestion on how I can cut the crank arm?
If you can't pound the pins out, then drill them out.
ahhh! great idea. Thank you
I drilled a pin out in this video: th-cam.com/video/4zpQH41DIA0/w-d-xo.html
Thank you
That is the exact bicycle I have in your video
It seems the workbench I have my vice attached to would rather lift off the ground than get the pin out. It’s like 250 pounds
VERY GOOD INDEED BECAUSE I KNOW WHAT A RIGHT BITCH COTTER PINS CAN BE THANKS FOR THIS
christopher benson Check my home cotter pin tool: th-cam.com/video/JIIjID_KdiY/w-d-xo.html
Yes, indeed! I'm convinced that cotter pins are forged in the fires of hell.
Oh no the pin on my old bike got mushroom out , just hitting by hammer without placing nut on it. Still not even moving the pin. Any further solution Sir ?
You may have to drill it out.
@@RJTheBikeGuy Thank you Sir, Finally done it :)
my old 50s bike dont have cotter pins its got wered way to get the crank off almost like the modern ones today
What I want to know is how to do this on an exercise bike?
Arm Forward. Nut Up.
I did it with a Hammer and a nail
The nut is stuck and won’t unscrew. What do I do?
Use a bigger hammer.
Im watching this while had mid sawed the crankset cuz the cotter pin didn't want to go out by hammering.
I used penetrating oil
its broken. i can't do anything
And if I don’t wanna ding the piss out of the crank arm lol! Anyone can smash the pin out lol
Rally not Rolly
Restoring two his and hers early 80"s steyr cruisers, the hammer method made me cringe, im thinking some kind of vice or punch press, your method is counter productive to the preservation process of these extremely rare bikes, is essentially a hurried hack job,
Good luck with that. Even using a press or vise, I have still had the pins bend over and end up drilling them. More often than not I end up replacing the pins with new ones.
thank you! yea I work at a wheel fun rentals location we rent bikes, Surrey's paddle boats act.. the boss refurbished a couple of the older surrys with the pin cranks still yet to ask him about it.