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Thread: Crosman seals & pump cup

  1. #16
    Join Date
    Apr 2012
    Location
    Retford, Notts
    Posts
    34,742
    Thanks ped. Points noted for when I have a tinker.

    If I was feeling flush at the time, I'd probably go down the complete flat too conversion, replacing pump head and valve body at the same time. But power not a requirement anyway, so maybe better just to do as above.
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  2. #17
    Join Date
    Dec 2016
    Location
    leeds
    Posts
    2,061
    look up about stuffing a piston and shaving the valve nose also packing the pump cup from the piston and pinning it
    all diy mods that will gain power for a bit of elbow grease

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