I picked up my first MK10/BA recently. After having rebuilt several MK5 and MK7 units, I thought it was time for the successor to the MK5. Anyway, the disassembly went well, along with the ultrasonic cleaning, and parts inspection.
Now, the frustrating news..... I cannot locate the swivel washer. I know that I had it, but it’s nowhere to be found. So, my first inclination was to try to find a useable nylon washer on McMaster. After carefully measuring the various dimensions, I found that nothing is available in either SAE or metric standard sizes. The Scubapro schematic number is 16, and the part number is 01-060-500.
Hopefully, COUV, or another Scubapro expert has a spare, or can steer me in the right direction. While tolerances are an issue, here are my impressions of what is needed: ID 0.525”, OD 0.650”. The thickness is a guess by assembling the swivel cap, swivel, and swivel retainer, and eyeballing the clearance. I’m estimating 0.015-0.020” should be about right. Too thick, and the parts will drag excessively. If all else fails, I may need to try an o-ring as a spacer. Not too thrilled with that idea.
Any assistance would be greatly appreciated. Of course, it makes a somewhat attractive paperweight.
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