Clutch slave cylinder build.

toglhot

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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.
 
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I may not get to use the slave, can't find any matching brake/clutch masters with the size I'll need (12/17mm?), so it'll be either non matching masters or an easy pull on the clutch cable. Should have investigated first I guess. No matter, it gave me some time making stuff, feeding my addiction
 
16mm may be a little too large for a 25mm slave, I think a sub 12mm master would work. While I can get a 12mm clutch/brake master, getting a matching 12/17mm clutch/brake master is the problem.
There are a lot of matching brake/clutch masters, but they are all the same size or within a mm or so, 14/15mm are everywhere.
And if you want radial, not a hope in hell!
 
I've just discovered Magura make a 12mm clutch master and a 16mm brake master. And, they're only $1004 ea, that's just $2008 ($1350US) for the both, what a bargain!

I can get a matching pair of 12.7 mm brake/clutch masters, considerably cheaper, but not sure if 12.7mm wiould be too small for the TX650.
 
Nope, busy with other stuff. Couldn't find a suitable master that matches the brake caliper anyway. But, I may revisit this some time further down the track.
 
Nope, busy with other stuff. Couldn't find a suitable master that matches the brake caliper anyway. But, I may revisit this some time further down the track.
Howdy Boss - How is it going? Any update on this?
Cheers,
350GUY
 
Still busy with other stuff, but I have looked at it,, considering different designs. The one I made still seems to be the go. i have found a 10 mm master, which I'll buy when I get around to it. It's not a match to the brake master, but I'm ok with that..
 
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