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Thread: pre-war conundrum

  1. #1
    Join Date
    Jun 2011
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    Malvern
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    368

    pre-war conundrum

    Has anyone replaced the air cylinder on a prewar underlever? and I mean unscrewing the barrel tap loading end from the air cylinder tube.

    the reason I ask is, the past year I have been sorting out my Lincoln Jeffries / BSA under levers, a few at a time. I am down to the last 3, one of which is a model d but has a damaged air cylinder, no etching and had crude scope rails cut into it. I also have a scrap model d gun that has a good air cylinder with visible etching but a carbonised barrel. My thoughts are to swap the cylinders and end up with one nice gun.

    Anyone tried it?

  2. #2
    Join Date
    Mar 2005
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    Banstead, Surrey.
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    431
    The barrel is threaded, but is also soldered, so you will have to heat it while unscrewing it, it is quite simple but just take care not to burn yourself.
    Cheers , Lawrie.

  3. #3
    micky2 is offline The collector formerly known as micky
    Join Date
    Jan 2016
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    boston
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    Quote Originally Posted by Lawrie Amatruda View Post
    The barrel is threaded, but is also soldered, so you will have to heat it while unscrewing it, it is quite simple but just take care not to burn yourself.
    Cheers , Lawrie.
    You are quite right about it being easy even l did it. l used a blowlamp to do mine but l wore thick gloves.

  4. #4
    Join Date
    Jun 2011
    Location
    Malvern
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    Many thanks, I'll give it a go.

    One worry was something Ed told me, he did one and found when he screwed the new cylinder and barrel together the cocking slot didn't line up. Which was due to the air cylinders when measured being found not to be the same length.

    But in the end what do I have to loose...

    Many thanks for everyones help.

  5. #5
    Join Date
    Feb 2006
    Location
    Farnborough
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    4,394
    If one were to do this would you put it back together with more solder or use loctite? I guess it would have to be solder if you ever wanted to hot salt blue it in the future. Don't all shriek at once at talk of re-bluing one of these old girls
    WANTED: Next weeks winning lottery numbers :-)

  6. #6
    Join Date
    Dec 2003
    Location
    Cambridge UK
    Posts
    7,068
    Re putting it back together. A few years ago I was asked to look at a L pattern rifle for which the cylinder had come loose at the front end ... just started to unscrew. A shop / repairer deemed it uneconomic to repair. I fully dismantled it, cleaned the screw threads up and re-assembled it using JB weld on the threads, taking care to get the alignment spot on. It worked perfectly and the owner was / is very happy as the rifle had been his grandfather's.
    Cheers, Phil

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