S2000 Under The Hood S2000 Technical and Mechanical discussions.

Clutch beginning to stick

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Old Nov 11, 2005 | 04:34 AM
  #1  
Big_Al's Avatar
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Default Clutch beginning to stick

Lucky for me I had the experience of sitting in stop and go traffic yesterday with my clutch wanting to stick to the floor. I assume I have to get the hydraulic system bled? Cylinder replaced? Adjust the cables? New Clutch ? Most importantly, how much will it cost to get it fixed? I have no problems shifting into any gear, its only when I release my foot off the clutch the last few inches of travel feel very heavy. There is no clutch slippage. Sorry if this is a stupid question but my left leg is starting to get quite the workout in rush hour. My car has 51,000 miles btw
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Old Nov 11, 2005 | 06:04 AM
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The sticky clutch pedal has been discussed many times. Unfortunately, several different problems have caused the same sticky pedal feel. On my car, it turned out to be a leaking slave cylinder. I replaced it and have had no problems in the last 60,000+ miles. Some others have had success with changing the clutch fluid, greasing the clutch fork, replacing the master cylinder, or greasing the throwout bearing shaft.

If the search function will work, I'm sure you can find a few threads that'll help you out.
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Old Nov 11, 2005 | 08:45 AM
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Hmm, I tried the search function but the website threw me an error. Thanks for the advice though.
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Old Nov 11, 2005 | 11:45 AM
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Internal leaks that allow the fluid (under pressure when the pedal is depressed) to leak back from the slave cylinder to the master cylinder can cause the pedal to stick to the floor. In most cases this also causes the clutch to start to engage "on it's own" as the fluid leaks back, because the pressure plate will no longer be held open.

Or, you can have a sticky clutch because of a lack of lubrication on the clutch rod, fork, throw out bearing, or transmission main shaft splines. Mine got sticky when the main shaft rusted (no lube from the factory), a friend of mine had his clutch get sticky because of a lack of lubrication on the rod, fork, and splines after a local shop changed his clutch. If you lube it, be sure to use the right grease (high temp urea grease).

Here's a photo of the slave cylinder rod. This rod has a ball end that sits in a cup on the end of the clutch fork. The cup has a small pocket to hold some extra grease, but in this case there was no grease. After several thousand miles the cup had worn the ball down except for a tiny part that was left untouched because of the indentation in the cup. The result was a little tit formed on the end of the ball as shown on the left picture. You can also see considerable galling on the surface of the ball. The right photo is what it should look like, which is after I ground it down and polished it.
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