Leaking Slave Cylinder.

[drft204]

okay i have a brand new slave cylinder for my auto to manual swap. and i install my clutch line. i bled it. then all this fluid starts coming out from the rubber boot or what ever that rubber part is on the slave. i don't know if the clutch fork is stuck and broke the slave cylinder or the slave cylinder had a defect. its and after market slave so yeah.

[drft204]

bump?

[rogoman]

Yes! It's an aftermarket piece of crap.

[srpowered240sx]

get a new one, it could have been defective. did you lube up the throw out bearing?

[drft204]

whats the throw out bearing. i noticed on sites that the slave cylinders have a shaft through them or its either on the side. mine didn't come with it at all.

[1mansho]

if you buy a slave cylinder or master get a oem nissan one. Aftermarket replacement parts are not good quality and will blow out

[srpowered240sx]

whats the throw out bearing. i noticed on sites that the slave cylinders have a shaft through them or its either on the side. mine didn't come with it at all.

huh? a slave clinder uses hydraulic pressure to push a rod out, in turn pushing your clutch fork pivot inside the trans to pull the clutch off the flywheel, so your slave should have a rod coming out the end....or its not a slave cylinder. the throw out bearing is on the transmission shaft, inside the bellhousing. the clutch fork pushes it against your clutch pressure plate to lift the clutchs disc. while you have your foot on the clutch pedal depressed, your riding on the throw out bearing.

[drft204]

oh thats the "shaft" i was talking about. that rod on the slave cylinder. it didn't come with it. iunno if the pivot fork is stuck cuz i don't wanna buy an expensive slave cylinder then find out the fork is really stuck and the slave will blow jus like this cheap knock off version.

[srpowered240sx]

ive never had a problem with aftermarket slaves, or remanufactured slaves for that matter. you should be able to push the clutch fork with your hand, it will be hard, but it should move. you should be able to use your old rod out of the old slave. if not, get one with a rod.

[drft204]

damn its almost impossible too push with your hand. i'm almost sure that its stuck. i'm in a situation where i have a small master craft jack. 2 jackstands. anyone ever tried dropping the transmission with little room?

[srpowered240sx]

the last transmission i did, 2 days ago, i told my brother he was dumb for trying to work on it with it so low. its gonna be so much easier the higher it is.

[scottydog]

I can only move the clutch withdrawal lever a little bit by hand. It pushes on the throwout bearing/pressure plate splines.

The aftermarket slaves sometimes don't come with a push rod. Just use the one from the old slave. Or get another one. If you installed the slave without the push rod the piston would have come out too much causing your fluid leak. Open the bleed nipple, push the piston back in, and insert the slave push rod.

FIX THE SLAVE before you start pulling the transmission. The transmission is a serious PIA to remove and reinstall!

Do a search and download the shop manual. Take a good look at the diagrams in the clutch section to see how it all goes together.

[drft204]

oh i jus got a used oem slave instead. its still in good condition but the bleeder nipple won't turn so i'll use vice grips to get it out and use the bleeder nipple from the knock off slave.

[cleopp3]

Had this exact same problem when installing all my clutch release components, what could and usually does happen is the retainer springs on the fork get cocked off therefore when the slave (clutch pedal) is applied its just pushing the fork and is not actually pivoting on the little ball thats under it. unfortunatly I had to drop the transmission to acess it. but what u can do is check through the fork boot and see if it has play or is just locked. the fork is unpressable by hand so u cant tell by pressing it. A slave is a slave, oem being the best obviously. if none of that works transmission needs to come down.other possibility of the Throw out bearing being lodged on the frontcover shaft.

[drft204]

hopefully nothing is wrong. i haven't had time to check lately i don't have a car at the time to go see my 240 at my cousins house. the slave shouldn't just pop and have all the fluid leaking if the pivot fork is stuck right?. it just would be hard to press the pedal down after the bleeding process?

[scottydog]

If you tried to operate the slave without a push rod it'll leak for sure. If the fork is stuck the piston won't move at all, like you said.

[drft204]

oh fricken sweet. i moved the rod to the knock off version of the slave and bled everything. and now the pivot fork is actually moving =).

[g35paul]

so did this fix the problem? im having the same exact problem in my 92 s13.... just put a stage 4 in 450 miles ago along with jun flywheel and new throw out.. now all of a sudden car wont go in gear at all... so i changed the master and slave... didnt fix it.... got dark out so waited til next day.... the next day a swapped the slave out with another new one and i blew like ur talkin... got a ton a clutch pressure but blew... so i tried the older new one and same thing.... so i try the old oem one and damn same thing...... my fork moves by hand but how much should it move.... im thinking my throw out is stuck or feel off even.....

btw for a few days b4 it wouldnt go in gear, when i pushed clutch in it was making weird noise... almost like flywheel chatter but way worse almost grinding.... im lost and pretty good with cars and some my best friends are ase mechanics

[drft204]

hmmm theres prolly something wrong with your pivot fork because theres no way i could do it by hand. pretty weird how it just blows though because you'd probably feel all the pressure on the pedal so you'd know not to force it.

[g35paul]

im thinking my throw out is stuck.. was making a almost grinding noise when pushed clutch in b4 it went out