s2-king

Hey all, I was wondering if anyone had some insights on my weird situation...

My s2k has been sitting since October 2013; before putting it into storage I flushed the clutch fluid so it would be all clean for this coming year. However, when I went into my car to see how shes doing I noticed the clutch pedal was somewhat sunk to about half way and when I went to press it down, it literally just sunk all the way without any pressure or force. I had to pump it like crazy to regain the stiffness and stayed stiff since then.

Would it be safe to assume air bubbles are the cause?

Thanks guys!!

myflys2k

What's the level in the clutch fluid reservoir? When you flushed the clutch fluid did you just change the fluid in the reservoir? Have you cleaned the clutch slave cylinder and grease the clutch fork? Is it the stock clutch?

iDomN8U

Yes, it can be a PITA to bleed right.

might as well re-grease the slave if it's a older S2k

s2-king

Level in the reservoir is at max
changed the fluid in the reservoir
I dismounted the slave to clean and actually forgot to grease it shit lol
its an ACT clutch stage 1 with less than 10k on it

zeroptzero

Maybe the slave rod is not catching the clutch fork properly when you reinstalled it.

If you didn't open the clutch line during the fluid swap then it shouldn't have any air in it, if you did open up the line it may have air bubbles in it.

It might be a faulty master cylinder, see if you have fluid dripping at the clutch rod location under-dash, also check around the slave cylinder to see if any fluid is leaking there onto the ground.

shamusodoofus

This doesn't sound like an issue with an ungreased slave cylinder. The clutch shouldn't drop to the floor with no force as you described. I just have a quick question. When you flushed the clutch fluid prior to storage, immediately after you filled the reservoir and put everything back together did you drive the car or press down on the clutch pedal? It's pretty normal after you change your clutch fluid that the pedal feels the way you described until after you pump it numerous times. If this is not the case, you may have a leak in your master cylinder. Most likely coming from inside the cabin where the clutch pedal connects to the master clutch cylinder. Check that for leaks, if there's fluid building up in that area then you should look into replacing the master clutch cylinder.

s2-king

Thanks for the reply everyone!!

I checked for leaks under the dash where the rod goes into the master and its dry as a bone thankfully. After I replaced the fluid I thought the same thing to pump and it went to being like normal, however, I had quite a few grinds and misshifts on the way home.

I'm really considering a reverse bleed at this point with "the v12 bleeder."

zeroptzero

The clutch line is the easiest of lines to bleed, it is almost impossible to do it wrong, no need to use any type of bleeder tools. Doing a gravity bleed is more than enough, just crack open the bleeder and let some fluid out while keeping the reservoir from going dry, then close up the bleeder.

The grinds seem to indicate a bad master cylinder or air in the system.

iDomN8U

If you get air in the slave, it's difficult to purge, I believe Billman has special notes. This is what happened to me, the piston came apart when I was greasing... it was messy. But it's a real pain to bleed the air unless you follow Billman's advice and I believe you have to remove it from the transmission and raise it up as high as possbile, something along those lines.

Edit: Found the Billman post
https://www.s2ki.com/s2000/topic/895...eding-problem/

SickoS2K

If you get air in the slave, it's difficult to purge, I believe Billman has special notes. This is what happened to me, the piston came apart when I was greasing... it was messy. But it's a real pain to bleed the air unless you follow Billman's advice and I believe you have to remove it from the transmission and raise it up as high as possbile, something along those lines.

Edit: Found the Billman post
https://www.s2ki.com/s2000/topic/895...eding-problem/
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You just never bleed the system properly .. Just do the steps mentioned above and you will be fine. They are sometimes very difficult to bleed.