s13 master clutch cylinder replacement nightmare... please help

[Fenvy]

at this point, I am very frustrated. I was at it with a friend from 2pm to 8pm and I am ready to pay someone to finish if I have to. Let me know if you know how and if you live in southern california.



Basically, thinking that I have done something like this on my intergra before, I figured that it would be the same. Anyways, I have a broken master clutch cylinder, it leaks through the seal and makes it hard to shift.

I bought a replacement at autozone for 25$, I made sure that the pump and the part where the clutch pedal mounts to is the same distance as the old as orginal one. They are about 5 inchs aparts, from the mounting holes to the actual pump.

Not wanting to bleed the system, we removed the 2 nuts holding the master clutch cylinder and pulled it out from the firewall. We then had something under it and catch the dot 3 fluid as we unscrew the metal line that goes across the firewall and down to the rectangle box where the bleed valve #1 is (refer to the pic).

We put everything back, filled up the master clutch cylinder with dot 3 fluid and decided to pump it. It drops to the floor. We start pumping it and it doesn't seem to do anything. So I got down there and untighten the bleed valve 1. So we were at this for some times, he pumps, I bleed then tighten... pump again and it didn't do much. So we figured that the air goes back in from the bleed valve #1 so we went the fish store and bought some clear hose that fits around the bleed valve #1. We are at it again. this time I can see air bubble coming out at the first 3 bleeding but there are no more after that. We must have bleed the thing for at lease 10 times and still no pressure, the pedal sinks to the floor.

So I figured that we did something wrong. So We tried to bleed the bleed valve #2 (refer to the photo) and some air bubble came out but no more after 3 or 4th bleed. Still no pressure. At this point we are not sure what to do. We pump it 15 times per bleed but no pressure is gained after we stop. We followed the line from master cylinder to the 1st bleed valve, all hoses, then to the 2nd bleed valve and transmission: nothing is leaking anywhere. We figured that okay.... maybe we are unlucky and we got a bad master clutch cylinder so we put the old one back and it's still the same: no pressure at the clutch pedal so we know we didn't install it incorrectly. We tried to bleed it again and we did it until both valve have no more air bubbles coming out from it. We made sure that the master clutch cylinder is always filled with fluid so no additional air is sucked in.

Last thing I noticed is that if we pump it really fast we get lots of pressure from the pedal but as soon as we stop and let it sit for 5 seconds, the pressure from the pedal is gone.

What should I do? What did I do wrong? Please help.

[Charlie240sxt]

Take off the cluch loop syst, its a pain to get it to blead right with that thing after that try it agien and just check all your work make sure you dont have something mixxed up

[TrunkMonkey]

did you check your clutch slave cylinder?

-demetrius

[SHIFTrl240]

do this first: http://www.zeroyon.com/pics/in....html

then after, if its still doing the same thing check slave cyl

[Fenvy]

wait a sec, so I have to bend this thing? what if it breaks or cause a leak?

[SHIFTrl240]

it won't break, believe me. as long as you don't kink it, everything will be fine. i did my auto to manual swap and i bent my line up real good (had it packaged in a small container) with no problems.

[NoStickers]

I had the same problem and spent like a week trying to bleed that bastard but then got this

http://www.store.yahoo.com/pha....html

then bled it once and it worked great

[SHIFTrl240]

you don't need that, the k2rd line is just as good.

[pr240sx]

No need to remove, bend anything.

Bench bleed the MCAttach it to the lineFill the reservoirTell buddy to SLOWLY pump the clutch pedal 5-6 timesKeep pedal pressedOpen bleeder at the slave cylinderclose bleederRepeatCheck the fluid level, DONt let it empty completly!!

For faster bleeding you can remove the screw that attaches that curved line to the frame rail, then you can twist the whole assembly down(curved hardline will be inclined toward the floor)

May take like 5-10 times to completly bleed the system this way (like 1/4 of a normal DOT brake fluid)

If you remove the loop, may take way less.By the way, that is a clutch insulator (WTF??)

[racegod34]

here you go i had the same problem and i had to change out my master and slave cylinders. If you open the bleeder valve on the slave and you hook up a hose to it and run it to the resevor on the clutch master. this way you can bleed the system yourself and not loose all the fluid in your driveway. your will still have to add some but this system does work. you might also want to change that slave too. I got mine for like 17 bucks.

[marshun]

do this first: http://www.zeroyon.com/pics/in....html

then after, if its still doing the same thing check slave cyl

cool. anyone can verify if this works? cause im kinda curious to do this now.

[Nathan]

cool. anyone can verify if this works? cause im kinda curious to do this now.

I can tell you its super easy to bend it into place without kinking it I cant tell you if it works though...damned discount parts store clutch slave didn't work, the oem nissan one wont be here until the end of the week

[Fenvy]

I bend it and it works. I was so happy that I actually get pressure from the clutch pedal after I bend it :ylsuper

I even washed the car after I fixed it.

[SHIFTrl240]

yes.. it works

very easy, free mod that makes clutch servicing easier along with a stiffer feel. as always the damper was put there for comfort, to keep the vibration of the trans/engine from going to the pedal, which i don't mind at all. it also makes the spot where the pressure plate releases more toward the top of the pedal so you do not have to push as far.

you can get the stock rubber replacement stainless steel line from k2rd for like 25+shipping also for a greater stiffness