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Thread: Early Webley MK3 won't cock

  1. #1
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    Early Webley MK3 won't cock

    Originally the piston on this rifle was seized in and it wouldn't cock at all.
    Stripped it and lubed it up as there was no lube on it.
    Now when cocking the trigger will cock but it won't hold the piston.
    The small spring that pushes down on the sear is still there despite it trying to escape across the room on disassembly .
    There is a small bit of wear on the sear but it doesn't look too bad and no wear on piston rod.

    Any ideas ?

  2. #2
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    Quote Originally Posted by hammy View Post
    Originally the piston on this rifle was seized in and it wouldn't cock at all.
    Stripped it and lubed it up as there was no lube on it.
    Now when cocking the trigger will cock but it won't hold the piston.
    The small spring that pushes down on the sear is still there despite it trying to escape across the room on disassembly .
    There is a small bit of wear on the sear but it doesn't look too bad and no wear on piston rod.

    Any ideas ?
    Is the trigger adjustment screw set too light ? There are three types of trigger on MK 111.

    Baz
    BE AN INDEPENDENT THINKER, DON'T FOLLOW THE CROWD

  3. #3
    ggggr's Avatar
    ggggr is offline part time super hero and seeker of justice
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    Quote Originally Posted by hammy View Post
    Originally the piston on this rifle was seized in and it wouldn't cock at all.
    Stripped it and lubed it up as there was no lube on it.
    Now when cocking the trigger will cock but it won't hold the piston.
    The small spring that pushes down on the sear is still there despite it trying to escape across the room on disassembly .
    There is a small bit of wear on the sear but it doesn't look too bad and no wear on piston rod.

    Any ideas ?
    Firstly, take it apart and just try pushing the piston rod into the trigger housing and see if it engages ok and holds. If it does, it suggests the trigger/sear is ok---------if not it would suggest that the sear/trigger is worn or needs adjusting, or the trigger spring has jumped and is stopping the sear and trigger engaging. Then. try it without the mainspring in and the cocking arm removed and see if the piston engages when you slide it back with a screwdriver or rod. Then, if it does, the sear should hold the piston as you try to push the piston forwards. Then refit the cocking arm (as these sometimes bend a fraction) and see if it cocks then. If it doesn't then it could be the cocking arm bent or the piston worn where the cocking arm pushes on.
    If it does cock and hold then, it could be the mainspring is too long and coil bound.
    I had one bugger ( the first one I saw) that the sear was broken on but they had dressed it up so it didn't look broken.
    Cooler than Mace Windu with a FRO, walking into Members Only and saying "Bitches, be cool"

  4. #4
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    Quote Originally Posted by ggggr View Post
    Firstly, take it apart and just try pushing the piston rod into the trigger housing and see if it engages ok and holds. If it does, it suggests the trigger/sear is ok---------if not it would suggest that the sear/trigger is worn or needs adjusting, or the trigger spring has jumped and is stopping the sear and trigger engaging. Then. try it without the mainspring in and the cocking arm removed and see if the piston engages when you slide it back with a screwdriver or rod. Then, if it does, the sear should hold the piston as you try to push the piston forwards. Then refit the cocking arm (as these sometimes bend a fraction) and see if it cocks then. If it doesn't then it could be the cocking arm bent or the piston worn where the cocking arm pushes on.
    If it does cock and hold then, it could be the mainspring is too long and coil bound.
    I had one bugger ( the first one I saw) that the sear was broken on but they had dressed it up so it didn't look broken.

    Will try all that thanks 👍

  5. #5
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    Quote Originally Posted by ggggr View Post
    Firstly, take it apart and just try pushing the piston rod into the trigger housing and see if it engages ok and holds. If it does, it suggests the trigger/sear is ok---------if not it would suggest that the sear/trigger is worn or needs adjusting, or the trigger spring has jumped and is stopping the sear and trigger engaging. Then. try it without the mainspring in and the cocking arm removed and see if the piston engages when you slide it back with a screwdriver or rod. Then, if it does, the sear should hold the piston as you try to push the piston forwards. Then refit the cocking arm (as these sometimes bend a fraction) and see if it cocks then. If it doesn't then it could be the cocking arm bent or the piston worn where the cocking arm pushes on.
    If it does cock and hold then, it could be the mainspring is too long and coil bound.
    I had one bugger ( the first one I saw) that the sear was broken on but they had dressed it up so it didn't look broken.
    Didn't have to strip it........ It all clicked together when I read your post.
    With the piston seized the owner had been over ethusiastic with the cocking and bent the cocking link, visibly so when I had another look. A couple of taps with the hammer and all is good again . .

    Thanks for the help.

  6. #6
    ggggr's Avatar
    ggggr is offline part time super hero and seeker of justice
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    Quote Originally Posted by hammy View Post
    Didn't have to strip it........ It all clicked together when I read your post.
    With the piston seized the owner had been over ethusiastic with the cocking and bent the cocking link, visibly so when I had another look. A couple of taps with the hammer and all is good again . .

    Thanks for the help.
    I am pleased you sorted it. It is always nice when you get them sorted
    Cooler than Mace Windu with a FRO, walking into Members Only and saying "Bitches, be cool"

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