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Clutch slave cylinder build. - toglhot - 01-17-2023
Slaved away today - making a clutch slave cylinder. I made it so it sits in the left cover, protruding through the clutch screw actuatorr hole. I managed to get the tolerances better than the caliper tolerances: The bore is dead on 25mm, the piston dead on 24.97, a really nice fit.
I couldn't find any seals similar to the caliper seals, but found a hydraulic pressure seal and dust seal, but I have to find a 25 mm internal circlip before cutting the circlip groove. I also,have to drill a couple of holes in the collar to suit the holes in the side cover, then bore out the hole in the cover to 30mm and drill out the M5 securing threads. Once done two M5 Allen's will bolt through the outside of the cover, holding the slave cylinder in place.
I did make one mistake, got carried away on the lathe and cut the collar down to 18mm, that only leaves a 6 mm threaded hole in the collar of the slave cylinder. Hopefully this may work as the screws are really on locating pegs.
Before modifying the side cover I'll order a hydraulic hose. Not sure what size master cylinder to get, but I'll try the slave out on the 17mm braker master cylinder first, that should give a clue, unless of course, someone here knows what size master to go with the 25mm slave for a nice light clutch pull: Fused fingers so grip isn't the best.
I'm hoping to find a pair of matching radial clutch/brake master cylinders.