Mark, I just read your original post. If you need any other parts, or guidance on the rebuild, let me know. I’ve been rebuilding the MR12 series regs for over 20 years. It’s probably easiest to reach me through my email, [email protected]
Also, the only diaphragm recall that I am aware of was with the early Mares versions that were clear silicone. Mares began putting a colored dot on the redesigned ones so the techs would know it didn’t need to be switched out.