ok so i think my CMC is gone. I drove my prelude 2 days ago, but when I got in it to go to work today, the first thing i noticed was my clutch pedal felt a little light and when i started to drive it was a little notchy.. and the first thing I thought of was my reservoir but I didnt have time to check it so I went to work and when it warmed up it was going into gear fine. When I finally got to work I noticed the I had no fluid in the reservoir so afte rwork I drove home.. she was working fine with no problems, except for the feel of the clutch pedal (clutch was engaging/disengaging very close to the floor). Got home, bled the lines.. no bubbles at all but the pedal now goes to the floor and doesn't come up. I looked for leaks by the pedal and nothing.. any suggestions would be appreciated. Thanks.

 

yeh 99% likely the master cyelndor shot just swap a new on in only take all of 10mins

 

Did you verify that its not leaking by the slave?

 

ya it wasn't leaking at the slave.. before i started I looked for all possible leaks because I thought it was odd all my fluid was gone. I'm pretty good at frequently checking my fluids too..

 

btw i'll replace the slave at the same time as the master if that is the prob

 

ok so today i replaced the master and the slave cylinders and the pedal is still at the floor. could it be that the pedal needs to be adjusted? i figure the master cylinder is what pushes the clutch pedal back, and the pedal seems like it is just about what ther manual says. oh yes I did bench bleed the master cylinder before installing it so no one can say there's a possibility of blown seals from bad install ect.. if anyone has any more ideas i'd appreciate it. at this point im desperate haha. thanks ahead of time

 

come on.. sumone has to have an idea

 

what areyou talking about clutch cyl or the master cyl, if you wanna see if it is leaking look under the dash, at the pedal rods and you will see if there are any leaks usually the carpet will have a stain on a real bad leaking clutch cyl, but if you replaced it and it is still on the floor you might wanna bleed the system again, might be a air pocket in there

 

the clutch master cylinder.. it is/was not leaking by the pedal. i think it was leaking at the slave cylinder, but i replaced both the master and slave cylinders so i know there is no leaking for sure now. but, like i said, the pedal is still at the floor. it feels like there is a little pressure from the rod, but not enough to bring the pedal back up. the system has been bled more times than i know, and there is no air in the system. ANY suggesitons would be helpful.

 

well then, have you tried adjusting the pedal height, loosen the 12mm nuts on both sides and adjust the rod to where it feels good. try that and see what happens

 

ya that is the one thing i have not done yet.. but the measurements are within the specs in the service manual. i plan on checking the lines to see if there might be a leak for some reason in a rubber section. i'll also try to pump the pedal to see if there is any fluid loss, which would mean a leak sumwhere. when i get a friend over imma see if the slave cylinder moves at all when pressed down too.. but i highly doubt it. thanks for the advice and keep the suggestions coming

 

If the pedal will not return back to position, its most likely a Hydrolic issue. Check to see if the slave cylinder is connected to the Clutch fork. Sometimes it slips off. Also, check to see that the clutch lines are not cross threaded into the master and slave cylinders.

Can you get in and out of gears with the car on?

 

ya i havent been able to look at the car rescently, but i know there has got to be air in the lines sumhow.. i just dont see how. the slave cylinder is on the fork ok.. tomorrow i am hopefully going to look at it to see if the fork is moving at all. no i cannot go in or out of gear with the car on because i cannot give pressure to release the clutch im guessing. any other ideas are great tho

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 0bLiViOuS &raquo;</TD></TR><TR><TD CLASS="quote">ya i havent been able to look at the car rescently, but i know there has got to be air in the lines sumhow.. i just dont see how. the slave cylinder is on the fork ok.. tomorrow i am hopefully going to look at it to see if the fork is moving at all. no i cannot go in or out of gear with the car on because i cannot give pressure to release the clutch im guessing. any other ideas are great tho </TD></TR></TABLE>

Yeah, check the movement of the slave and fork. If full motion is not present, then I would lean towards the CMC. Also, maybe the hose going from the reservoir to the CMC is cracked??

 

ok so i havent touched the car for over a week i think and today when i got in it, there was pressure in the pedal. enought to move and drive the car, but it still feels like it did when i first noticed that something wasn't right. the shifter was a little notchy going into gears for the first minute or so, but after that it goes in ok. the clutch engagement is very close to the ground too.. would moving the pedal help at all? i figure if i do this, it may allow more fluid to be pushed through.. which might cure the problem? i dunno im outta ideas haha. i just dont understand why it started to work. could the clutch be on its way out too? that's the only other possibility that i can think of. anywho, any ideas would be great thanks in advance