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  1. Art Challacombe

    Sportsways Sea-Vue Gauge

    Thanks Scuba Lawyer, you’ve been extremely helpful. In fact, you have inspired me to snatch up some more of these gauges to restore and use on my vintage gear. I found some really cheap gauges on eBay and proceeded to take them apart, clean them up, install new o-rings and recalibrate them.
  2. Art Challacombe

    109 Restored

    The 109 is complete; new lever, new duro poppet, new orifice, new rubber diaphragm cover, new exhaust valve and new mouthpiece. Now, the only thing left to do is adjusting the cracking pressure and water testing. Once it’s done, it will be connected up to my MK5 as a safe second and ready to hit...
  3. Art Challacombe

    109 Restored

    Hi whaylonsmither - no, the holes are in the bottom corner of the barreI and damage is hard to see. It doesn’t seem to take much to hang up the lever. I only saw the problem areas by using a jewelers loupe and a flashlight. Getting into the corners is not easy either as there is little room to...
  4. Art Challacombe

    109 Restored

    Aloha everyone, I was given a Scubapro 109 second stage that was headed for the trash heap. Basically, the adjusting lever would stick in the up or down position. No springing back when pressed down. Try as I might, I could not get the lever to function properly. I tried various different...
  5. Art Challacombe

    Sportsways Sea-Vue Gauge

    I recently purchased a 60’s USD Calypso regulator with a Sportsways Sea-Vue spg. I successfully rebuilt the regulator, but the spg is not functioning due to a missing over pressure blow out plug. While I seriously doubt I’d ever use this gauge in the water, I’d like to get it functional again as...
  6. Art Challacombe

    Scubapro MK10 Seat

    While using compressed air to remove SP hp seats has always been successful for me in the past, my latest MK5 seat removal was unsuccessful on a really stubborn one. 120psi and it wouldn’t budge. So, I took Zung’s advice and put the seat retainer in the freezer for two hours. Used 120psi again...
  7. Art Challacombe

    How to Restore a Scubapro Mark VII Honker

    As you all know, most of the time spent restoring an old regulator is in cleaning parts. For my MK7, after a long immersion in vinegar water, I cleaned the regulator lands to remove the left over verdigris with 4000 then 6000 and finally 8000 micro mesh. Very smooth now. Also, wood picks are...
  8. Art Challacombe

    How to Restore a Scubapro Mark VII Honker

    Found another basket case MK7 on the cheap. Hopefully, I can bring it back to its former glory. It’s a first generation MK7 and has some challenges. The piston shaft o-ring is really crusty and I had to resort to the SS dental tools again. A lot easier to remove than the previous one though. The...
  9. Art Challacombe

    Want to Buy Scubapro 109

    Thanks to james79 and dway84 my MK7's now have their own second stage 109's. Now I'm ready to irritate all those spear fishermen on the South Shore LOL.
  10. Art Challacombe

    Want to Buy Scubapro 109

    Aloha everyone, Looking to buy a Scubapro 109 second stage to match my newly rebuilt MKVII. Nonworking is fine as long as it's rebuildable. Thank you.
  11. Art Challacombe

    How to Restore a Scubapro Mark VII Honker

    Question for all you Scubapro historians and gurus. Unlike my other MK7’s, the one I just serviced does not have the word “audio” above the low pressure port for the second stage. I’m aware that it is an early version, but is it a very early version or did Scubapro just use different equipment...
  12. Art Challacombe

    How to Restore a Scubapro Mark VII Honker

    I just can’t seem to help myself from finding cheap MK7’s on eBay. My latest one was just $15 plus shipping. The seller, who I’ve bought from before, accurately described it as “for parts only.” In the past, though, I’ve been able to bring his offerings back to life. This one was a challenge...
  13. Art Challacombe

    How to Restore a Scubapro Mark VII Honker

    These MK7’s are becoming an addiction. Last week I bought another one on eBay. It was covered spar varnish, but I was able to remove it with Bartenders Friend. I did a complete rebuild and when I tested it, the first stage whistled like tea kettle on every breath. It had nothing to do with the...
  14. Art Challacombe

    MK200 Piston vs MK2

    As others have said, leaks from the ambient chamber on Mk2’s are the result of faulty o-rings or a problem with the body. Here is a Mk200 that had an ambient chamber leak with air coming out of the chamber holes. IP was constant at 128 psi. A fifteen minute repair with new o-rings on the piston...
  15. Art Challacombe

    Installing a Vintage K Valve on a Steel 72

    I also have a couple of these to let me know when it’s time to come to the surface.
  16. Art Challacombe

    Installing a Vintage K Valve on a Steel 72

    Quite honestly, I thought their policy on J valves was FOS and it pissed me off to have to comply with its removal. I think they just don’t take kindly to vintage diving equipment. They gave my custom homemade Hawaiian backpack and Conshelf VI some strange looks. But, they did a hydro and...
  17. Art Challacombe

    Installing a Vintage K Valve on a Steel 72

    Several years ago, I was forced to remove my J valve on my trusty US Divers steel 72 tank. The reason for the removal was the LDS refusal to fill tanks with J valves. “Safety” was their official rationale. So, I bought a used XS valve from them and got my tank filled. The XS valve has served...
  18. Art Challacombe

    How to Restore a Scubapro Mark VII Honker

    Thank you, rsingler for the outstanding tutorial. I’m out of my lane when it comes to Scubapro as I exclusively tinker in vintage US Divers regulators. But, after receiving inspiration from experts such as couv and Herman, I purchased a cheap “for parts Only” MK5 and MK7 on eBay. Happily, both...
  19. Art Challacombe

    MK5 HP Seat

    I’m guessing that perhaps the seat face had not had not been cycled enough to create a permanent lock. To be fair, the initial IP was at 138 and creeped up to 148 after a couple of hours. Maybe I should have been more patient and cycled the regulator as Pete Wolfinger says.
  20. Art Challacombe

    MK5 HP Seat

    Thanks rsingler, that makes sense to me. Fortunately, the previous IP creep was not from the piston. I checked the knife edge with a jewelers loop and the edge is perfect. Also, I left the the regulator on a full tank overnight. It read 125 psi last night and today it’s at 128. I’m satisfied...
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