Join Date: Oct 2006
Location: Langley, BC, Canada
I've rebuilt worse.
I say go for it.
All you need is a new seal and lightly hone the surfaces to remove any imperfections/ridging. Smooth is the key. I think you can save that piston. If not, you might as well buy a whole new slave assembly. Rotate it so what was the bottom of the piston is now the top (the bottom suffers wear from grit collection).
In my experience, the rebuilt slave is good for a while (a year or so) but you will have to replace it eventually or keep topping up fluid as it slowly leaks down (you can do this for a long time but it's not good for the paint job or morale).
I haven't had much success with rebuilding a second time. Once the piston gets at all sloppy in the cylinder bore, it will cock and all your fluid goes bye-bye in a hurry. At that point, peace of mind is worth about the same as a new slave cylinder assembly.
So, go ahead and rebuild that bad boy and you cay say you've been there and done that.
And if you haven't trimmed away the extraneous gasket bit that keeps that area from draining properly, do that while you're at it. It will let more of the crap that collects there to escape and prolong the life of your slave.
DL1000K6 Two wheels good; four wheels bad.
Last edited by larolco; 06-09-2019 at 12:31 AM.