The clutch slave cylinder started leaking a couple of months ago, then stopped after a couple of days. At the time I purchased the seals for the rebuild, but did not do it at the time as it gave me no futrther trouble. Yesterday, I pulled it off and cleaned up and replaced the seals. I just posted this as I had never seen such a mess in a cylinder. Apparently there is some interaction between DOT 4 and something,, the grease that was used on the pushrod??,, as the whole thing was filled with crystallized fluid,, I don't see how it sealed back up...??? The picture did not come out focused, but you can get an idea.

I wiped these pieces down before I thought to get a picture, but they looked almost as bad as the first picture when I pulled it apart. That mess does clean up fairly easily with lacquer reducer.

Clean everything up, install new seals, assemble and bleed the system and back in business and will not need to think about the clutch for a few years.
I wonder, is this what the brake calipers look like when you take them apart??