I was able to change out the valve. The O-ring that I chose may not work, but I have several to try with the new valve. I do not see that the sealing area of my SCUBA valve is any different from the SCBA valve so should not be a high hurdle. Tank is clean as a whistle on the inside. Threads look good in tank neck. I will see if I can puff it up a little and do a leak check.
Quote from: 3crows on February 02, 2024, 07:08:32 PMI was able to change out the valve. The O-ring that I chose may not work, but I have several to try with the new valve. I do not see that the sealing area of my SCUBA valve is any different from the SCBA valve so should not be a high hurdle. Tank is clean as a whistle on the inside. Threads look good in tank neck. I will see if I can puff it up a little and do a leak check.How did you get the valve off? I tried on mine so I could do a visual of the inside and wasn't able to break it free.
Quote from: triggertreat on February 02, 2024, 08:55:14 PMQuote from: 3crows on February 02, 2024, 07:08:32 PMI was able to change out the valve. The O-ring that I chose may not work, but I have several to try with the new valve. I do not see that the sealing area of my SCUBA valve is any different from the SCBA valve so should not be a high hurdle. Tank is clean as a whistle on the inside. Threads look good in tank neck. I will see if I can puff it up a little and do a leak check.How did you get the valve off? I tried on mine so I could do a visual of the inside and wasn't able to break it free.Muscle . I had my tiny little wife sit on it and block it with her feet like she was sitting on a giant hot dog on the living room rug. I took a large Crescent wrench (USA made) with masking tape on it and a dead blow hammer and gave it a few whacks and it came free. Going back on with the SCUBA valve I tightened it by hand and then whacked it with my palm. Tank is now at 3,000 psi. I am filling in stages. I used a SCUBA tanks and a transfill whip initially to get it to 2,200 psi. I removed the protective (cosmetic) rubber cover and plastic housing on the SCBA valve so I could get to the area with flats intended for a wrench. I yanked that cover off with my hands. Tossed it in the junk place. If I ever convert back to SCBA the tank valve will not need that cover.
Another mod you may want to try is attach heat sinks to the compressor pipe. They get super hot so I figure add some heatsinks to help with the heat buildup. How well do they work? I don't know it was something to do honestly and seemed like a not so bad idea. I bought a backpressure valve in the idea it helps keeps the air in the filters longer, at least until it hits the pressure set. Mine is set at around 2k.They can be adjusted higher/lower, I haven't seen a need yet.It won't allow air into the tank until the compressor can overcome that psi. I figure we don't run tanks empty anyway, usually refill at 2k and I don't crack my tank opento accept air into it until it gets past 2k anyway.