Dunno did the thing run out of oil? they wear but aint never seen one like that!
The bike is 'new to me' - I don't know its history.
It looks like 'running out of oil' type damage. The side cover was replaced sans gasket, so.......maybe.
"they wear but aint never seen one like that!" - had a Ducati Paso with similar prob. The hydraulic slave piston straight onto a push rod sans oil. Of course the hydraulic piston grabbed and turned in an aluminum cylinder flogging it out in no time flat (and then leaking
). It became routine to take the cover off occasionally and hitting it with a spray of chain lube - then no probs
.
However, the Monty is designed to run in oil.
It leaves me looking for a replacement. If you have me let me know otherwise I'll drop Jared an email.