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Cotter-press

  • 09-12-2010 8:30pm
    #1
    Closed Accounts Posts: 38 Elmar Fudd


    It there any shop that has the correct tool to remove a cotter pin in Dublin? I used to remove them with a hammer but I am too old and clumsy and am only damaging my chainwheel.


Comments

  • Registered Users, Registered Users 2 Posts: 7,277 ✭✭✭kenmc


    Just use a centre punch or cold chisel or something to direct the blow a bit more accurately. I've only ever done it with a hammer.


  • Closed Accounts Posts: 303 ✭✭paddymacsporran


    Shop would use a hammer too.


  • Registered Users, Registered Users 2 Posts: 6,440 ✭✭✭cdaly_


    To avoid damage to the chainwheel, I would use a sheet of strong plastic or metal resting against the side of the chainwheel to deflect the hammer...


  • Posts: 0 ✭✭✭✭ Braden Poor Apparel


    use a block of wood with the hammer, problem solved


  • Registered Users, Registered Users 2 Posts: 869 ✭✭✭Holyboy


    I would be REALLY surprised if any shop in the country still had a cotter press,even back in the days when bikes came with cottered cranks most shops used a hammer!!
    The only way to remove your pin is to support the crank underneath with a suitable length of steel pipe that the pin will fit inside, the other side being supported by the floor,loosen the pin retaining nut,BUT DO NOT REMOVE IT!!!! The reason for leaving the nut on is to stop the threaded part from bending when hit with a hammer. A little penetrating oil may help too if you think it's really tight in there. Good luck!


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