Just got the ebay actuators in the mail ... one re-pop ... no shaft seal so that is easy enough to diagnose. One OEM with rust on the seal, one OEM with a dry-rotted and/or seal has slipped on the shaft.
So I think I can end up with two working units for $25 using the extra OEM seal I have.
I'll examine it closer the next couple of days, but the re-pop unit seems to be a pretty well built piece of kit with the exception of the seal.
All the diaphragms seem to be fine, all of them hold vacuum on the back side.
Someone could make a few dollars if they could re-pop decent seals.
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