BigAnteg

how can u tell if ur slave cylinder is going out

96hb

Any leaking fluid around the slave, constantly having to refill your reservoir, clutch pedal staying on the floor when you press it in. These were the symptoms when mine was going out anyway. If it is going out, try to replace it as soon as you can. I waited and mine took a dump on me in a parking lot. It's a pretty cheap and easy fix.

B18C5-EH2

Haha I just had to replace my slave cylinder yesterday.

I'd been seeing one tiny drop of mystery fluid (usually already dried up) under my car at complete random. The location of it kept making me check coolant, but coolant was always good. Because the stain was clearish I couldn't tell what it was, and it was always just a stain - not wet fluid.

Then on my way to work yesterday I noticed my shifter was a touch notchy, and then I began noticing the clutch pedal was getting more and more play.

Crap.

I tried pumping the clutch but it only made it much worse (because I'd just pumped the last bit of fluid out completely) so I drove clutch-less to the closest parts store and got some fluid, filled it up, pumped up the clutch, and drove to work.

The big rubber boot that fits into the hole in the trans case for the clutch fork was full of clutch fluid,and it was the source of my totally random drop/stain under my car.

Replacing the slave cylinder is easy. It can be easier or harder depending on your cooling fan set-up/shroud. My Civic has an Integra radiator and main fan/shroud so it sits really close to my slave cylinder. Made getting the two bolts that hold the slave to the trans case a bit trickier to start, but otherwise it's a very easy job.

#9 is the slave cylinder:



Now some people might argue this, but my opinion is that if both the master cylinder (#6) and the slave cylinder are both original then it's best to replace them at the same time. I only did my slave cylinder alone because I'm on my third master cylinder since I built the car in 2001. The slave was also replaced in 2001 and has since been replaced in 2005, and now 2010. A double diaphram clutch pressure plate will do this sort of damage to the hydraulics.

b20hatchek

i would try and bleed it, but your clutch master cylinder will feel the same if it goes to the floor,

B18C5-EH2

BTW:

In my ramblings I forgot some key details.

Checking for bad clutch master/slave cylinders:

Look under the dash at the clutch pedal assembly, then follow the pedal up to the clutch master cylinder. If you see wetness or even a dark nasty grease looking substance on the shaft (just under the #4in that pic above) then the master cylinder is bad.

To check the slave cylinder you might need to pull the rubber boot that covers up the clutch fork/slave cylinder piston to check for fluid. Mine was holding a decent amount of fluid in it, so it wasn't hitting the ground enough to make it obvious.

Check inside #7 for fluid:



Also driveability symptoms would include a clutch pedal with excessive play in it before it has pressure, notchy shifting, and of course loss of clutch fluid in the reservoir.

B18C5-EH2

Haha I keep forgetting to post stuff because I'm at work.

I'm going to assume the car in question is a 92-00 Civic, and hopefully it has either a D or B series in it which takes the same exact clutch master and slave cylinder part numbers.

Clutch master cylinder:

46920-SR3-A01

Clutch slave cylinder:

46930-SR3-013

Your local parts store versions are JUNK unless they offer the brans name "Adler" or "Nissin." Trust me on this. Either go to your local Honda dealership and buy the parts, or try and find someone who carries the Adler/Nissan brand as they are 100% exactly the same as what you'll get from a Honda dealership.

I did a Google search for "Adler clutch hydraulics Honda" and got a lot of different listings. Go to a site and then look for the part numbers I've listed.

Former User

^^^Nice to see a mod making a helpful tech post.

newtron63h

just wanted to clear it up since you had a lil boo-boo, to the OP its NISSIN, not NISSAN.

BigAnteg

cause last week my 5th gear wouldnt go in and bleed my system and my 5th gear started going in fine but now its acting up again i didnt no if its my cluth or slave but it doesnt grind or anything it just wont go in at times

civicdx860

i replace mine 2 month ago and my clutch touching the floor again i replace my master cylinder and the slave cylinder and bleed it to so now i dont know what wrong with it again