Clutch Slave Cylinder - How to Bleed

[juliantrevin38]

This video is a favorite on Washington D.C.

[rhblakeman]

Big problem is on GD GM slaves with the bleeder on the bottom and no access for a hose (they put a weep hole next to the set screw). Pushing in on the pushrod does help. I love having to triple the work due to idiots they hire to be design engineers.

[myjeri]

SWEEEEEEEEET! I was about to give up giant thanks and hugs and whatnot!

[freholeybe2]

good video it solved my problem

[thawzinwynn]

How can I do this in Vauxhall vectra 2003? Pls help me

[frankduckit]

HOW DO YOU DO THIS IF THE SLAVE IS INSIDE THE TRANS ????????? AHHHHHH

[frankduckit]

Great Video though but bleeding the clutch on my 98 S10 is driving me mad

[kurojin97]

so my check engine light is on because my car has gas?!?!

[kptonez]

THANKS!!!! I hate my MG just 1/3 less now! =)

[NadeHere]

damn, the linkage is in the bellhousing on my BMW :( and it is being a pain in the ass to bleed right now.

[MrUnprofessional]

thanks, just replaced my clutch and my buddy pulled the high pressure lines from the slave cylinder instead of pulling the bolts and pinning it up, lol. this is exactly what i was looking for!

[MrMachuca1978]

i like it ! short and easy to understand

[REXakaTRA504]

Wow tanx... my 89 mr2

[joeaccord23]

this method is good and works however this is another way!....u dont have to have a glass of water with a tube to the bleeder. keep the valve closed, and push the slave cylinder in and out until u finish seeing air bubbles.

[dennythepenny]

Thanks for the info. Worked well.

[mathyu0179]

Nice, but as easy as it is on a counter its a total PITA to do in the engine bay.

[unitroller]

ohh ok i was opening the liuttle nipple as the clutch was being compressed thanks this helps alot.

[serchmarc]

super THX i have this problem right now in my car.

[kitya13]

thanks! I had a busted rubber on the piston and brought one. I apply your method to bleed it, and it helps a lot.

[mattluvsmud1989]

wheel cylinder?

[Trukillaog]

@mattluvsmud1989 its for the clutch

[jpatt1000]

@mattluvsmud1989 The hydraulic slave in a drum type brake is called a wheel cylinder.

[nazdagg]

it works. even on a D21Nissan. thanks.

[Micksure132]

would this work with the clutch up?

[80mgbTahiti]

No, because with it up, when you push in on the slave's rod you'll push air both out the bleeder and back into the clutch line.

The best way to bleed the slave cylinder is to hang it vertically (disconnected from bell housing), and use an 80+ cc oil syringe to inject fluid into the slave cylinder through its bleeder; you're filling the system from the slave back to the master. Fluid level needs to be down in the master or you'll overflow. Worked the first time for me doing it this way.

[NGinuity]

@80mgbTahiti His method works because both sides are now uunder hydraulic pressure. When you push the clutch pedal to the floor, it forces all air out the bleeder valve, leaving you with a line full of fluid. When you push the piston back into the slave cylinder, with the other side already bled and not reset, you still have a line full of fluid under pressur with nowhere for air to go. Air will take the path of least resistance out the bleeder valve.

[80mgbTahiti]

This method will fail. With the slave piston depressed into the cylinder with the pedal down, once the bleeder is closed and the pedal is released there is no fluid to "make up the volume" as the master cylinder retracts as the pedal lifts. Therefore, the slave piston will be sucked further into the slave cylinder, buckling the piston-spring that's inside the cylinder. I have first hand experience with this behavior.

[hotboy183]

Thanks

[randomstrangerno1]

surely that will leave a vacuum situation in the hydraulic line? with neither the master or slave cylinder being able to return to extended position? :S

[accordv6er]

hmm... i agree with you, same question...

[willcolumbine]

There won't be a vacuum becuase the space that was taken up by the air will be replaced by fluid from the reservoir.

[80mgbTahiti]

With the pedal down, the bleed holes past the master cylinder which would permit the fluid in the reservoir to make up the volume are blocked (otherwise, fluid would just bypass around the master cylinder's piston and back into the reservoir during pedal compression). There is no path for fluid to get from the reservoir to the clutch hydraulics with the pedal down; the displaced air volume can't be "replaced" in this manner.

[dragons0088]

awesome thanks mate!

[thug0gr3]

WOW! that was tha best explanation ever, watched it 10 times 'cos I like that guys accent! it helped me A LOT in solving my car's clutch problem! REALLY! THANK YOU!!!