davidc1

I've got some aerosol white lithium grease/lubricant. Is that OK to lube it with?

s2kftw37

the reason it is leaking fluid behind the primary piston and if it is leaking out fluid in the back of the master that would usually be the primary cup seal.... reason this may happen is the lines could be contaminated due to not properly servicing and flushing your system....this is caused by moisture in the fluid that then sort of "corrodes" or rusts your system causing it to tear the cup seal

let me know.... sorry if I am wrong but that's usually what I've found I'm new to my s2000 as of last friday just trying to put in some input

CapoArgentino

^^ Welcome bro

azhole

No judgment here, but mine went at 23k (2007). The clutch felt spongy and not much resistance for 1.5 days, then all of a sudden, no clutch at all. Fail point was the "gasket" from the piston attached to the pedal. Did not replace the slave, since it has not seen abuse or extended length of service. I also noticed the fluid was dark. Car was 90 days out of warranty, but was an easy fix and not much money. Don't pay over $90 for this part, btw.

My $0.02 is that there must be some interaction between the MC and the fluid that turns it dark/contaminates it, leading to early failure. I cannot imagine it is a moisture issue due to my environ, and if I left fluid out in the open, it does not seem to darken. I would suggest short interval on flush, but again, this is early life fail in my experience, and I should not have to flush ever 10k...hope this helps/adds to the discussion.

hellspare

I had the same symptom before. Here's how I fixed mine:

First check your clutch fluid over a couple days. If it's going down then it's definitely leaking somewhere. However, in my case it wasn't a master cylinder, it was just a nut that wasn't tightened enough when I did a clutch bleed, so the fluid was leaking from there.

I swear I thought it was my master cylinder too, but it wasn't. Now I don't leak any fluid and my clutch pedal feels fine.

Billman250

Maybe...but you have to be careful because you dont want to spray grease on the clutch.

coat hanger or thin screwdriver works best. Small dab of grease...pull fork out (it wont come out all the way) greae the two tips, and the ball end of the slave.