GrdLock

I just finished putting in a new clutch, and a shop installed a new slave cylinder a week ago, right before I took it apart myself. I'm putting everything back together right now, got the new master cylinder in, tried to bleed it out, but I got zero pressure on the clutch pedal after several bleeding attempts. Fluid was coming out the bleeder valve each time I bled it, but still no pressure.

The thing that concerns me is that I was under the assumption that with the master cylinder hydraulic line disconnected from the slave, you shouldn't be able to push the cylinder in. However, I can easily push the piston in by hand. Could this mean my brand new cylinder is bad out of the box?

What could be the problem? What else should I check for? The only thing I can think of is that I did the drill mod on the cable while I had it out. I was careful to keep the cable straight, but maybe I somehow nicked the inside and broke a small hole in the cable? I'd think I'd see fluid leaking out of the cable though when I pump the master... plus I can blow air into the cable and it doesn't leak... although it may take more pressure than I can apply.

Blwn_by_Twins

iTrader: (6)

This is correct. If the quick connect is NOT connected to the slave, the pedal should not be able to move. You either have a leak or the seals in your M/C are shot.

TheBlueKnight

iTrader: (4)

How are you bleeding it? Sometimes if you are not thinking people have made simple mistakes like not closing the bleeder when pulling the clutch up off the floor.

GrdLock

Push pedal down, open bleeder for a second, close bleeder, pull pedal up, pump a few times. Repeat.

If what Blwn_by_Twins says is true though, I've got a problem with the cylinder or hydraulic cable though. I just went and exchanged the cylinder for a new one, so I'm going to try and connect the cable up to the new cylinder and pre-bleed it, and see if I get pressure on just the master.

SladeX

You could aso push in the master if disconnected and had air in it. It wouldnt be rock hard, but it would move

ahhwataday

iTrader: (7)

oops! I was told otherwise. It will go down with enough force but will blow your O-ring out of the quick connect

SPEC-01

iTrader: (2)

Did you have resistence when you depressed the pedal without the line being connected? What the pedal super-stiff. If so then you probably pushed through the seals.

ahhwataday

iTrader: (7)

^^if that was towards me
I couldnt push it down so I assumed it had to be hooked up. I got under the car to push the inner plastic back and my friend got in and pushed it really hard....before i got to push the plastic in. So the **** got all over me lol. The o ring came half way, out. Pushed the ring back in and the clutch pedal moved as if it were hooked up.

Master and hose are out of the car now. I posted a topic about the hose

SPEC-01

iTrader: (2)

Yep...it will cause a mess!

ahhwataday

iTrader: (7)

So that may have been the reason I was getting no pressure once everything was back together???

I dont wanna jack this guys thread, Can you check my post out?
https://ls1tech.com/forums/manual-tr...ual-trans.html

i'm sofa king

good luck. i have plans to replace my clutch master after work tonite. the only part i'm worried about is bleeding the system when its all done.

ahhwataday

iTrader: (7)

Dont pull to hard on the hose. Pull the actual quick connect fitting. I was pulling both and my hose pulled right out of the fitting.

i'm sofa king

cool, good point.

question, do you put the car up on jack stands?

also, i talked to a guy about my master pssoibly being bad and he was saying something about jacking up the front of the car to get something.......the call cut out, but i think hew was refering to bleeding it.

any body know? i may just call him back.

ahhwataday

iTrader: (7)

Bench bleeding and cutting a hole next to the gas pedal. Make sure the hole lines up with the bleeder. You can pump the clutch and turn the wrench all while in the car.

I have mine off the ground. You will need to be able to get under the car and still be able to work from the top, under the hood.

Search for the drill mod too. you will wanna do that too