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That “rubber plate” bit (2787) is what @rsingler rightly suggested was the most expensive piece of scuba equipment, based upon its weight (retail: US 20.64 In 2020). It is placed under the set-screw, to protect the threads of the valve tube, when setting the cracking pressure.@Bigbella got that piece now. Thanks!! and the freeflow started after reassembly. The o-ring is flatter. all clean and assembling now. Wondering if I should keep the current valve insert. doesnt look bat
What in the world is this spec of a piece??? Guessing it's the runner plate 2787 07?
I never seen that piece disassembling
EDIT- found it. Goes under grub screw.
View attachment 684229 View attachment 684230
I usually use tweezers to get the “puck” in place . . .