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vulcan .25 unstable velocity !!

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This topic contains 55 replies, has 10 voices, and was last updated by  hoot 4 days, 21 hours ago.

Viewing 11 posts - 46 through 56 (of 56 total)
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  • #265521

    papa-schultz
    Participant
    quote guykuo:

    HST too high makes the end of regulated segment slope down at end of regulation.
    HST just right makes end of regulated segment remain almost flat until end of regulation.
    HST low, you see the regulated segment climb and then drop after coming off regulation.

    Now, this is short and clear :8:
    Admin, I think this should be made a sticky, clear explanation of the relationship between HST and regulator.
    Thanks Guykuo

    #265551

    kris
    Participant

    Papa schulz, stop drinking. this thread was NOT about balancing the reg and hst. It was a reg failure.
    just trying to maintain clarity. the OP adjusted reg and replaced some o rings at the same time, so we never learned which of the 2 it was.

    #265555

    papa-schultz
    Participant

    :rofl:
    Sorry, one too much

    Seriously, I well understand what the post is about, maybe “sticky” is not the right term, but this kind of simple, but useful information should be conserved somewhere central and not get lost in a specific thread, don’t you think?
    Cheers, and one more on your “santé”

    #265563

    hoot
    Participant
    quote Papa Schultz:

    :rofl:
    Sorry, one too much

    Seriously, I well understand what the post is about, maybe “sticky” is not the right term, but this kind of simple, but useful information should be conserved somewhere central and not get lost in a specific thread, don’t you think?
    Cheers, and one more on your “santé”

    :hoot:

    No need for an apology Pop’s….Read under Kris’s icon, and you can see that he just got out of the Fuxing Sanatorium, where he was being treated for mental issues resulting in Erectile Dysfunction. He’s still kinda groggy from the overdose of Viagra they had to administer to get his “Brain to Dick Interface Switch (BDIS)” pushed and locked back into operating position.

    He’ll be ok in a day or two! In the meanwhile, you just keep on chugging that fermented vinegar you guys like so much over there.

    Kind regards,

    Uncle Hoot:

    #265598

    kris
    Participant

    this is not fecking airgunnation, or are we all going to solve everything with adjusting the hammer spring? like they do? hell no!
    :rofl:

    #265636

    papa-schultz
    Participant

    Thanks, dearest ol’Uncle Hoot!
    I’d like to, but currently I’m in the country of fermented hop and malt.
    Well, not that bad neither, I’ll stick to it and hope Kris will be better soon to join in for the drinks.
    They – at least – go downrange even without hammer spring!!! :rofl: :fishinghole:
    Wish y’all a nice evening and keep it goin’
    Cheers

    #265691

    upperlight
    Participant

    readjusted the regulator.
    she is now shooting 920FPS with low HST

    tested accuracy, I can shoot ants eyes out :4:

    #265708

    hoot
    Participant
    quote upperlight:

    readjusted the regulator.
    she is now shooting 920FPS with low HST

    tested accuracy, I can shoot ants eyes out :4:

    :hoot:

    Excellent!

    Now that’s a gun you can be proud of! Maxed to the max…now, find something to shoot!

    Hoot:

    #267827

    kris
    Participant

    if you look at the locking nut,it has that polygon shape. The flat side between the ‘corners’ is approx~20bar, half of it is 10 bar, thats how I remember it. you have to mark the top brass bit rotational position with a vertical thin line best is to mark the main regulator body with a similar line too so you have reference points.

    To unlock: you hold the main regulator body with a large adjustable spanner, then you unlock the locking nut with another spanner by turning it anticlockwise.

    To adjust: – to lower the regulator output you turn the brass bit in deeper clock wise. this decreases the gap between the needle and seat.
    Hold the brass bit while you are locking the nut back in -if you dont it will turn with it.
    to increase the reg output you have to turn the brass out, so the total length of the regulator body will get longer. internally the gap will get bigger.

    simple
    :8:

    Edit: it seems there are 2 different seats out there. Flat and round. The round is higher so the total leng of reg will be different too. It seems there is also different brass needles out there. With hole across and without. Also the reg body’s can be aluminium not black anodised and black

    I just had a similar failure. Was down to small o rings. one the piston, looked square not round crossection anymore, and another one on the brass needle, it seems these go first. replaced both. :8:

    #276164

    zonk
    Participant

    This post has been a good read and learned a lot reading it.

    #530254

    hoot
    Participant

    I tried shooting antidepressants in mine, but it didn’t seem to help stabilize anything!

    You’ve gotta try…you never know till you try!

    Kindly ‘Ol Uncle Hoot

Viewing 11 posts - 46 through 56 (of 56 total)

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