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SMG-60 Valve Plunger measurements

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  • BretG
    replied
    When I cut them, the stem of the poppet is exposed and I sometimes punch them through and the flip the seal and reassemble. Works.

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  • Axel
    replied
    Thanks. I don't expect these things require exceptionally precise tolerances to function well. Small enough to fit, and large enough to return to a properly seated position between shots should be enough

    It would be nice to know the material and durometer of the seals. They also have a raised "bull's-eye" pattern. Whatever the material is, it's stood up well over time, but the last of the NOS must be long past it's shelf life. It shouldn't be too difficult to make a rebuildable version where the valve stem is threaded rather than press fit; then punching the seals from a flat sheet of whatever material is fairly simple.



    Of course, they really should be machined to bretg HPA conversion if we're going to bother with all that

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  • Chappy
    replied
    I should trust it as far as I can throw it. Luckily I can throw it pretty far so we’re good to go. It all works out I the end, nice work

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  • snaparen
    replied
    love the revision note.

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  • Axel
    started a topic SMG-60 Valve Plunger measurements

    SMG-60 Valve Plunger measurements

    According to my ability to work a pair of calipers
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