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ANOTHER clutch post? yep.

 
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Old 05-21-2010, 04:54 AM
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ANOTHER clutch post? yep.

This is my first post. Hey everyone. Thanks in advance for any help. I want you to know that YES. I DID READ THE FORUM POST FOR THE LAST CLUTCH POST EVER. This is gonna be about an air leak. I know... I'm sorry. If you want to skip this all, I just want to know what comes next now that I HAVE A LEAK that is too small to see, but too big to let me go anywhere.

I have a 2001 Prelude SH that used to work perfectly. Now I am 2 months stumped on this one.

Once upon a time I had a master cylinder that blew up all over the place and left me forcing my car home. I knew that because it was all wet on the inside of the firewall. It should have been a routine clutch job. SIMPLE.

Then, came the real problem. I replaced it and the slave at the same time. I used every method possible to bleed it (speedbleeder, looping back to the resv. and pumping, old fashioned 2 people way, gravity-bleed, oilcan pump from nipple back to master) and at best got it to a real soft working clutch. Drove it around the block and lost it. Then, I did it again. Same deal- use it 10 times and lose it.

I couldn't find any leaks, but since the only thing that changed was the slave/ master, I replaced them again. I am used to getting suspect parts from auto-zone that don't work out of the box, so I thought that would fix my issue. Did the same thing with the same result.

Once that didn't work, I decided that it might be the line, so I replaced it with a braided steel hose as to bypass ALL of the lines and the damper. Same thing.

It is hard to get pressure in it at all but once I do, it is MOSTLY working. I'd definitely say it's softer than I'd like with too much play at the top. 10-20 pumps in, it loses just enough pressure to not engage all the way. It doesn't lose any more than that, though. I can get it to that baseline, then it drops right below it and stays at that point.

I'm not losing any fluid. I know that there HAS to be air sucked back in, but what's really left at this point? Nothing is wet. The fittings are tight and not OVER-tightened. I have been through just about everything I can think of.

Is there some way to do a leak-down or pressure test of some sort? Find the leak? Am I missing something that is obvious? I don't think I'm an idiot, but would LOVE to be proven dumb so that my car can move again and I don't have to waste my time on the bus, footing it, or pushing pedals.

Sorry for the length, but I wanted to give enough info to get the idea across. Also, I am cross-posting this on a few forums so sorry if you see it somewhere else. I don't want to be a dick I just need an answer and my car that bad.

Also, if you want to talk DO use AIM to chat me up. I'm almost always at my computer or coming back to it soon.
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Old 05-22-2010, 02:27 AM
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Re: ANOTHER clutch post? yep.

I have an 01 SH with a bad clutch too, although I found that my problem is most likely because one of the m/c mounting bolts backed out and itsn't holding the m/c in place, and it moves when I push in the clutch pedal. That I'm getting fixed tomorrow, getting tired of the car stalling and jerking.

Personally I don't think I can answer you're question accurately, but I can spitball. So...are you sure it's a leak? If there is air in the system when you bleed it then air should come out, if not then there isn't any air, and thus no leak.
Also, are you sure power is getting from the pedal to the m/c? I believe (don't quote me) that when you push on the clutch pedal and look into the resevoir while you do it (two people needed) that the fluid in there should have turbulence, like swirling and such. If the force from the pedal isn't going from your foot to the pushrod and into the m/c seamlessly or not enough or at all, then that could be an issue.
Lastly, have you ruled out a mechanical issue? Like the clutch itself? Maybe the clutch hydraulic system is working but the clutch isn't actually engaging.

That's pretty much the best I can come up with, I suppose if those questions are answered it could help someone who knows more about the subject than I answer your question completely.

Last edited by havikprelude; 05-22-2010 at 02:30 AM.
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Old 05-23-2010, 12:59 PM
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Re: ANOTHER clutch post? yep.

hmmmmmm, i'm really stumped over this one. i'm gonna agree with ^^above^^ and say you've pretty much ruled out the possibility of it being a hydraulic problem, but more like a mechanical problem with something inside the transmission.

what if you go grab the clutch fork? the black thing sticking outta the front of the tranny that the slave cyl pushes against. make sure its nice and tight, and doesn't move forward/backward at all!
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Old 06-07-2010, 01:58 PM
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Re: ANOTHER clutch post? yep.

so, the answer was a new set of parts from my old favorite parts store, autozone. that was the 4th set of slave/master cylinders. looked fine, but they sucked. been driving on these for about 2 weeks, so just that you know.
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