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Thread: Doncaster Airgun Range Meet Up; Sat 18 Jan 2025

  1. #1006
    Join Date
    Mar 2024
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    Driffield
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    Quote Originally Posted by TonyL View Post
    Yes, I also dislike these shorter days. But at least we're heading the right way now.....We finish at 4.00 on a Sunday and I managed to get home yesterday evening before it went properly dark. It's not so much the "me driving in the dark" per se, more the oncoming traffic dazzling you....those LED lights nowadays seem so much brighter and many vehicles seem to have poorly adjusted lights. And dark AND wet really does my head in!

    On a much more pleasant note.....I managed to spend a tiny bit of prep time on the 35 today. I had previously hand filed the tip of the latch down. Gave it a try in the cylinder (no latch spring at this point) and, although there is still a bit of vertical movement, it is much reduced. A tiny bit more filing later on Thursday should sort.

    Looked at the TP earlier. Although I haven't measured it, the diameter appears to be closer to 3 than 4mm. So I'm going to stick with the parachute seal on this one and use the new seal that Tinners sent me. The leather piston I bought from Mark can go in my older one, which definitely has the larger TP.

    Removed the breech seal. It was a hardened, crumbling mess. Guessing that this alone will have accounted for the low power and harsh manners when I tried it pre-stripping. I've got a new one here to go in.

    I really hope grinding that cocking lever does the trick. I know I could get a new, later type one, as I fitted to the old knackerbag a few months ago. But if I can get away without the extra spend, that'll be a bonus.

    35mm to come off the spring. That will leave me with the threaded section of the end block plus a couple of mm for preload, which I think will be sufficient and give a nice, soft cycle.

    Looking forward to completing the works and trying it out......

    I agree about those modern headlights, even worse on the total blackness of country lanes. I bought a pair of yellow tinted glasses for driving at night, they do work but everything seems very surreal with them on.


    Sounds like the 35 is coming along nicely, fixing something without having to spend on it is always a bonus . I bought a gun with a breech seal like that, it was like crumbly cheese when removed it.

    Does sound like a lot off the spring, isn't there a risk of piston bounce with very little preload ? Asking as a relative noob.

  2. #1007
    Join Date
    Apr 2012
    Location
    Retford, Notts
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    38,575
    I think the length of the threaded section is about 18mm, Paul. My other old 35 with the V-Mach spring and guide kit's spring doesn't protrude beyond the cylinder end. And there are plenty of other 35s out there using stiffer springs, like Titans and Ox, set up thus so. So I thought just a little bit hanging out of the end should give a nice cycle. Power approaching the limit isn't a requirement. This spring will be a little softer than those, so I might go a little less, say 30mm off, which should give approx 25mm preload, and see how we go.
    THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
    NEXT EVENT :- May 17/18, 2025.........BOING!!

  3. #1008
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    Mar 2024
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    Driffield
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    Quote Originally Posted by TonyL View Post
    I think the length of the threaded section is about 18mm, Paul. My other old 35 with the V-Mach spring and guide kit's spring doesn't protrude beyond the cylinder end. And there are plenty of other 35s out there using stiffer springs, like Titans and Ox, set up thus so. So I thought just a little bit hanging out of the end should give a nice cycle. Power approaching the limit isn't a requirement. This spring will be a little softer than those, so I might go a little less, say 30mm off, which should give approx 25mm preload, and see how we go.

    I forgot what heavy springs these rifles have, not opened mine up but I can see in the cocking slot its way bigger than the springs in my other rifles, esp the Welsh Willy springs.




    .

  4. #1009
    Join Date
    Apr 2012
    Location
    Retford, Notts
    Posts
    38,575
    Yep. The TbT one for the '35 (and I guess for the '80?) isn't as much of a beast though, Paul, so maybe better to run it with a bit more preload.
    THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
    NEXT EVENT :- May 17/18, 2025.........BOING!!

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