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VDH DSV Leak by

Discussion in 'Vintage Equipment Diving' started by EberWolf, Apr 27, 2020.

  1. herman

    herman Divemaster

    # of Dives: 500 - 999
    Location: Raleigh,North Carolina
    9,592
    2,257
    113
    then we are discussing a DSV issue. Are you sure it was fully open/ closed?
     
  2. couv

    couv Instructor, Scuba

    # of Dives: 1,000 - 2,499
    Location: 13th floor of the Ivory Tower
    5,361
    2,935
    113
    Agree.

    @EberWolf Probably the "square" seal. Bryan refers to it as the "center opening o-ring" about 5 min into the video.The center opening seal is not really a square o-ring, but it encloses the square shape of the mouthpiece port. Sometimes this seal becomes dislodged or rolled and either lets water in or gas out. Therefore it's important to properly lubricate the outer barrel (about 4:20 into the vid.)

    Over time, you'll develop a feel and know when the DSV is fully opened/closed properly or in the ops case if something ain't right.
     
  3. rhwestfall

    rhwestfall Woof! ScubaBoard Sponsor

    # of Dives: 200 - 499
    Location: "La Grande Ile"
    14,070
    14,581
    113
    Diving it in salt water is also going to take more maintenance/tlc as the residue that can remain in that dynamic space will cause problems. My freshwater one is going on 3 years without being touched, and I had to rebuild the one I use(d) in saltwater twice already.
     
  4. Fibonacci

    Fibonacci Manta Ray

    # of Dives: 500 - 999
    Location: Melbourne, Australia
    627
    597
    93
    Un-idled and updated... earlier CAD model!
     
    couv likes this.
  5. couv

    couv Instructor, Scuba

    # of Dives: 1,000 - 2,499
    Location: 13th floor of the Ivory Tower
    5,361
    2,935
    113
    @Fibonacci

    Very good. One more request. How about annotating the drawing with the o-ring sizes and upload as a PDF file?

    Cheers mate.

    Couv
     
  6. Fibonacci

    Fibonacci Manta Ray

    # of Dives: 500 - 999
    Location: Melbourne, Australia
    627
    597
    93
    No worries :)
    Will upload a traditional line drawing exploded view with part numbers as a PDF.
     
    Luis H and couv like this.
  7. couv

    couv Instructor, Scuba

    # of Dives: 1,000 - 2,499
    Location: 13th floor of the Ivory Tower
    5,361
    2,935
    113
    TIA!
     
  8. Fibonacci

    Fibonacci Manta Ray

    # of Dives: 500 - 999
    Location: Melbourne, Australia
    627
    597
    93
    DSV Exploded View and parts list uploaded as PDF (updated to hi-res)... I couldn't find a parts list on the VDH website, so made up my own.

    Its easy to copy an existing assembly, much harder to successfully design and actually get it into production, so all due credit to @Luis H, @Herman Bryan at VDH and test team :thumb:
     

    Attached Files:

    couv likes this.

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