Really good photos , I just called my partner in to show them. Actually I really only wanted to show him one; the final one showing the o-ring, as the other pictures are only of general educational value if included in a theoretical discussion of function.

There is no need to ever see the inside for any other reason. Anyone who has gotten one of these back together and had it work surely had a working unit to start with. The chances are at least a hundred to one against reassembling an old unit with old parts and fixing anything. I have taken a number apart for informational purposes and maybe one worked afterwards.

I mention this to be sure that anyone heading this direction to replace the seal or just for fun doesn't think that taking it apart this far is part of the job. I would only disassemble this far once you are sure its bad and are sure you are ready to replace it when it really don't work after reassembly

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician