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Servicing regulators Dacor

Discussion in 'Advanced Scuba Discussions' started by Alvin Slovinsky, Apr 26, 2019.

  1. Alvin Slovinsky

    Alvin Slovinsky Nassau Grouper

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    I’m going to use them as a DIY and take them apart to learn how they work if I could find parts would fix them just to learn how to do it. Thanks again for all the advice better than dropping a lot of money into someuused than to just pick up a new regulator I can trust.
     
    John C. Ratliff likes this.
  2. herman

    herman Divemaster

    # of Dives: 500 - 999
    Location: Raleigh,North Carolina
    9,474
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    The Trident seats may or may not work. That first stage had 3 or 4 seat changes in it's life, these changes required you also change springs and other parts as part of a kit. You MUST get the correct one to go with the springs and other parts you have as the Trident seats do not come as a kit with springs and other parts. The real issue you have it the seat. All of the orings are common types and the diaphragm in the fist stage is common with US Divers/Al regs so you can get those as well. I have restored a couple of the 400/800s and a 900 or 2 just for fun.

    The second stages are a different matter. All the parts to repair them are common with other regs so new parts are not a problem. The are actually pretty good second stages.
     
    couv, Alvin Slovinsky and rjack321 like this.
  3. Alvin Slovinsky

    Alvin Slovinsky Nassau Grouper

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    Hi I appreciate your advice on them hopefully I can find a parts technician sheet so I can dismantle mine after seeing a picture of one looks like a lot of small parts in them. If you know where I can gets technical sheet on them it would be much appreciated. Can I order the parts online myself or does a dive shop have to order them for me since they are certified to do the work.
     
  4. happy-diver

    happy-diver Skindiver ScubaBoard Sponsor

    # of Dives: I just don't log dives
    Location: queensland Melbourne Victoria diver
    1,046
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    what a
    BONUS






    Dacor 400 with the keys, not 300, oops
     
    Bob DBF likes this.
  5. Brilig

    Brilig Nassau Grouper

    # of Dives: 50 - 99
    Location: Boston
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    Northeast scuba supply sells the high pressure seats.
    Take the regulator apart and take pictures so you can put it back together.
    If there is no corosion on the high pressure seat cone you are good.
    Measure the dimensions of the high pressure seat so you can order the correct one from northeast scuba supply.
    You will need to replace the diaphragm and this you will need to make yourself from EDPM rubber. It's available from Granger but the minimum order makes it expensive unless you are going to get into rebuilding old regulators.
    Some Dacor use 1/8" thick diaphragms and some are 1/16".
    I have glued two sheets of 1/16" together to get 1/8" and it works fine.
    Go to the DIY gear repair threads and you'll find more information on setting the pressure once you have it back together.
    I still dive my 35 year old Dacor 950 and have an even older Dacor 360 on my pony bottle. They work greatď
     
    Alvin Slovinsky likes this.
  6. Alvin Slovinsky

    Alvin Slovinsky Nassau Grouper

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    Thank you so much for this information it will help me service these regs there still in great shape and I’m not ready to put them on the shelf yet.
     
  7. Brilig

    Brilig Nassau Grouper

    # of Dives: 50 - 99
    Location: Boston
    88
    56
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    When I rebuilt my Dacor regs I asked alot of questions on the DIY gear repair forum and got alot of great help getting the job done.
     
    Alvin Slovinsky likes this.
  8. Alvin Slovinsky

    Alvin Slovinsky Nassau Grouper

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    Thank you I’m just new at diving and looking after my regs so I will look forward to networking with others that can assist me with servicing these regs great bunch of people out there with a wealth of information that are willing to share.
     
  9. lexvil

    lexvil Loggerhead Turtle

    # of Dives: 1,000 - 2,499
    Location: jamestown, ca.
    1,408
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    If you can get them very very cheap they can make a pretty display, the sad reality with all vintage regulators is they have no real value. You can get major brand vintage stuff and put $40 worth of parts/kits into them and get $30 for it. The biggest advantage is that they are great learning tools since there are few changes in design over the past 30 to 40 years, minor improvements that are more useful to the manufacturing cost than to performance.
     
  10. boat sju

    boat sju Loggerhead Turtle

    # of Dives: 200 - 499
    Location: Haslett, Michigan
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    Alvin,
    If nothing else, stick the first stage on a tank in your garage and use it to fill your car tires. Cold climate, aluminum rims - you made a great investment.
    boat
     

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