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Thread: Diana Model G4

  1. #1
    Join Date
    Aug 2023
    Location
    Peterculter
    Posts
    2

    Diana Model G4

    Hello,

    I need to put a new piston washer in my Diana G4 airpistol. Can anyone recommend a suitable tool to remove the end cap without damaging the finish? (Perhaps a two pin spanner?)

    Thanks,

    Euan

  2. #2
    Join Date
    Jul 2012
    Location
    cambridge
    Posts
    909


    Pin spanner, might be your best bet. If you cannot find one to buy they are not hard to make if you have a couple of steel pins the correct diameter, a drill the same size & a suitable piece of metal to mount the pins in. The holes need to be avery close fit & the bar used as the handle needs to be stout enough to exert the force to undo & do up the fitting. The pins need to be well supported so the bar needs to be fairly thick. Additionally the pins should onl protrude enough for them to fully engage the holes in the fitting + a smidge of clearance. Pins made from drill shanks or even nails might do it?

    Not keen on the idea but circlip pliers or ground down long nose pliers might do it, but it's not ideal. Slipping, accident, less control, or damage to the finish etc don't know how much pre tension the spring is under.......could be very risky.

    What's the recommendation in the 'stripping guide' on this website?

  3. #3
    Join Date
    Apr 2008
    Location
    STOTFOLD. NORTH HERTS
    Posts
    1,377

    Cool Two pin spanner ?? For removal of end cap

    INSERT TWO DRILL SHAFTS OF THE SAME SIZE INTO THE CAP HOLES, CLOSE THE JAWS OF AN ADJUSTABLE SPANNER ON TO THE TWO DRILL SHAFTS, KEEP IT ALL NICE & TIGHT. TURN WITH THE ADJUSTABLE SPANNER

  4. #4
    Join Date
    Aug 2023
    Location
    Peterculter
    Posts
    2

    Diana G4

    Thankyou both very much.

    Euan

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