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Thread: Shortening a Spring Gun's Spring ...

  1. #1
    Join Date
    Sep 2004
    Location
    Colchester - Romano-Saxon Firearm EDties
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    4,235

    Shortening a Spring Gun's Spring ...

    How much heat is required to enable the cut-end coil to be folded down? Can this be done with a 'handyman' gas-canister torch or does one need access to oxy-propane or an oxy-acetylene torch? After having been heated, I believe, the spring should not be 'quenched' but should be left to cool 'naturally.' Comments, guys? Regards ... Geek
    PauL H. - Shotgoon
    Brownings: 1999 Ultra XS; 2004 B525 Field; 2010 Maxus Hunter: Air Arms 1998 Mk.2 Pro-Target, 2001 Mk.2 Pro-Sport & 2003 S400C

  2. #2
    Join Date
    Nov 2001
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    Bolton,Lancs
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    11,147
    Did one a little while ago on the gas hob.

    Worked O.K.


    ATB
    Ray.

  3. #3
    Join Date
    Jun 2000
    Location
    U.K Warley West Midlands
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    1,102
    Handyman torch for me,and I always quench as I
    can't be botherd to wait for it to cool down.

    tony.

  4. #4
    Join Date
    Sep 2004
    Location
    Colchester - Romano-Saxon Firearm EDties
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    4,235
    You've done it now! I'm going to have to have a go, got a couple of old springs I can practise on first though. Thanks mateys. Regards ... Geek
    PauL H. - Shotgoon
    Brownings: 1999 Ultra XS; 2004 B525 Field; 2010 Maxus Hunter: Air Arms 1998 Mk.2 Pro-Target, 2001 Mk.2 Pro-Sport & 2003 S400C

  5. #5
    Paul Hudson Guest
    As the other guys have said - it's a lot less heat than you think. You should be able to hold the rest of the spring while heating it.

    Paul.

  6. #6
    Join Date
    Sep 2004
    Location
    Colchester - Romano-Saxon Firearm EDties
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    4,235
    Quote Originally Posted by Paul Hudson
    As the other guys have said - it's a lot less heat than you think. You should be able to hold the rest of the spring while heating it.

    Paul.
    Only one thing I can say to that, "Cool." Thanks Paul.
    PauL H. - Shotgoon
    Brownings: 1999 Ultra XS; 2004 B525 Field; 2010 Maxus Hunter: Air Arms 1998 Mk.2 Pro-Target, 2001 Mk.2 Pro-Sport & 2003 S400C

  7. #7
    Join Date
    Apr 2006
    Location
    Troisdorf / Germany / Europe
    Posts
    301
    Hi,

    The end you want to quench down should get dark to medium cherry -red.
    Use a wet rag to save the rest of the spring and your hand, than quench it down immediately 100% upright on a warm/ hot steel-plate. ( a cooking-plate works great )
    You should temper it for a hour at 180°to 190° Celsius in your oven , but you should not trust the marks on the oven-knob.

    Jochen

    Needless to say that the spring has to be 100% clean?
    Last edited by Jochen L.; 27-06-2006 at 02:31 PM.
    Indeed she said tie me up and do what ever you like and so I did. I tied her to the bed and went out fishing

  8. #8
    Join Date
    Jan 2006
    Location
    ipswich
    Posts
    1,267
    hi mate, yep should work with a blowtorch etc., have heard you are spose to quench then heat to straw yellow then quench to temper it
    'The person who sais it cannot be done should not interupt the person doing it' _ old chinese proverb

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