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Thread: Disassembly of a lock cylinder when re keying

  1. #1
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    Disassembly of a lock cylinder when re keying

    1999 RT. I need to re key a top box lock cylinder to match my bike. I have a pretty good grasp on how to do this but I have a couple of questions:
    Is Any force required to disassemble the removed lock cylinder tumblers? or do they and the springs fall out easily after key has been extracted? Special tool required?
    Will there be enough 1s, 2s and 3s from the existing lock cylinder to re key the lock or Is a kit of tumblers advised in case of shortage?
    Thanks, Flhfxd

  2. #2
    Pepperfool GSAddict's Avatar
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    No force required. Tumblers and springs easily come out when the key is removed - disassemble on a white towel.
    Depends how similar the key change is as to the numbers
    '
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    Gerard jagarra's Avatar
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    Here is a link to a you tube video showing a top box from a K1600 model being done. He shows you how to count the different positions, so depending on the keys you have and the difference you may have enough to do the change. He indicated kits were available from dealer.

    https://www.youtube.com/watch?v=mygeTPWUhqY
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    Registered User roger 04 rt's Avatar
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    Maxbmw didnt have them the last couple times I looked. Is there anyone else who has the rekey kits in stock?

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    The only kits I can find on web contain the barrel as well as a dozen tumblers and springs at $50.
    Can we get just a kit of tumblers at a better price?

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    Does Bob's BMW have what you need?
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    Most people don't bother with the kit. Do some Googling and learn how to arrange the existing tumblers to work. You may end up with a tumbler or two left over if the numbers don't work out but so what. By the way the video is totally wrong about their being only 24 combinations. There are many more than that.

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    Quote Originally Posted by bmwroadsterca View Post
    Most people don't bother with the kit. Do some Googling and learn how to arrange the existing tumblers to work. You may end up with a tumbler or two left over if the numbers don't work out but so what. By the way the video is totally wrong about their being only 24 combinations. There are many more than that.

    Sent from my SM-T530NU using Tapatalk
    I was thinking that very thing. Use what I can and leave a slot or two empty as necessary. Yes. Use the factorial math to get the potential combos. Hundreds for sure

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    Gerard jagarra's Avatar
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    Quote Originally Posted by flhfxd View Post
    The only kits I can find on web contain the barrel as well as a dozen tumblers and springs at $50.
    Can we get just a kit of tumblers at a better price?
    A&S has them for less, $37.00, free ship.https://www.ascycles.com/bmw/1998/R1...tml#PartsTable
    1994 R1100RS-(5/93)-,1974 R90/6 built 9/73,--1964 Triumph T100--1986 Honda XL600R

  10. #10
    Quote Originally Posted by flhfxd View Post
    I was thinking that very thing. Use what I can and leave a slot or two empty as necessary. Yes. Use the factorial math to get the potential combos. Hundreds for sure
    Yes, but, how many did BMW use.
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    Pepperfool GSAddict's Avatar
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    Quote Originally Posted by PGlaves View Post
    Yes, but, how many did BMW use.
    5 for the ignition lock
    4 on the cases
    '
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    Registered User roger 04 rt's Avatar
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    Quote Originally Posted by flhfxd View Post
    I was thinking that very thing. Use what I can and leave a slot or two empty as necessary. Yes. Use the factorial math to get the potential combos. Hundreds for sure
    You can also use what you have, get as close as possible, and then take down any high spots that remain with the key inserted, and file them down. It works.

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    Quote Originally Posted by roger 04 rt View Post
    You can also use what you have, get as close as possible, and then take down any high spots that remain with the key inserted, and file them down. It works.
    . Will do it this way. Presently on the road at work. Looking forward to this as soon as I get home.
    Thx all for the tips. Flhfxd

  14. #14
    Registered User roger 04 rt's Avatar
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    I remove the tumblers when I file them so that no bits get into the lock.

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    Quote Originally Posted by roger 04 rt View Post
    I remove the tumblers when I file them so that no bits get into the lock.
    What is the advantage of filling the tumblers? Isn't it simpler to just leave them out?

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