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Scubapro MK7 question

Discussion in 'Vintage Equipment Diving' started by Perryed, Nov 25, 2019.

  1. Perryed

    Perryed Nassau Grouper

    # of Dives: 500 - 999
    Location: Missouri
    163
    96
    28
    Cool! Mine breathes fine, I just wanted it to honk. Like god and Scubapro intended!
     
    rsingler likes this.
  2. Perryed

    Perryed Nassau Grouper

    # of Dives: 500 - 999
    Location: Missouri
    163
    96
    28
    I looked at what you have posted so far and I believe my problem was the adjustment. Never crossed my mind. I don`t think the YouTube video that VDH references in his rebuild kits ever mentioned that. But then I fast forwarded through a lot of it. And of course I took the tank back today so future further experimentation will be more well informed. Thanks, and am looking forward to the finished tutorial. Wish they made repops of the stickers!
     
  3. rsingler

    rsingler Scuba Instructor, Tinkerer in Brass Staff Member ScubaBoard Sponsor

    # of Dives: 500 - 999
    Location: Napa, California
    3,361
    3,753
    113
    Well, let me counsel just a little restraint. I started with that theory too. But that little piston cap with the slot is a high pressure exit. I believe the o-ring for it is spec'ed incorrectly, and my playing with it has shredded more than one oring so far. The more likely culprits are the oscillator main o-ring hardening and drying out, or the oscillator spring lacking sufficient tension. And as you'll see soon, putting a "standard" 2-117 on the oscillator will often not work.

    Hang in there! I'll have it done soon.
     

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