Clutch bleeding problem (searched and re-searched)

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flames5351
Posts: 129
Joined: Wed Jun 22, 2005 9:16 am
Car: 95 nissan 240sx SE

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Ok today I just installed a new clutch master cylinder and slave cylinder. Removed the damper box. When I try to bleed the system the clutch goes to the floor and doesn't come back up. I get no fluid coming out of the bleeder valve on the slave cylinder. I searched and someone said adjusting the clutch pedal with the rod works... well it didn't. I know a lot of people say bleed the master cylinder with a soft line running from the outlet to the resevior. My question is do you have to buy a fitting to screw into the outlet to slide the soft line onto? Or do you just hold it tightly in there while you pump?

Any input would be greatThanks guys


goj_cloud
Posts: 487
Joined: Sat May 27, 2006 7:17 pm

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you need two people to bleed the clutch one person to open/close the valve and one person to pump the pedal and put fluid in it. and you always need to have the fluid topped off. put fluid in the master cylinder, open the valve, pump the pedal 3 times, after the third time hold the pedal in then close the valve. now with the valve closed pump it a coupl more times, then repeat.

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bone_stock_240
Posts: 3467
Joined: Thu Jan 25, 2007 4:50 am
Car: 1995 Infiniti Q45

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If you are trying to bleed it yourself without any extra equipment, you will fail. If you open the bleeder valve yourself, and then pump the pedal, it will stay on the floor and not come back up. You need to get one person to pump the pedal a few times and hold it down, then get a second person to open and close the bleeder valve. Lather rinse and repeat for desired results.

flames5351
Posts: 129
Joined: Wed Jun 22, 2005 9:16 am
Car: 95 nissan 240sx SE

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ok maybe I should have made it clear I had two people.. I just figured it was a given. I'm gonna try and bleed the cylinder by itself and try what you guys said tom. But I did have 2 people and I was doing pretty much that.... The pedal stayed down everytime and I never got any fluid to come through the valve....

On a side note will pushing in the master cylinder when it is dry ruin it? I did it once or twice when I first got it... kinda excited I was gonna fix my car lol

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bone_stock_240
Posts: 3467
Joined: Thu Jan 25, 2007 4:50 am
Car: 1995 Infiniti Q45

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hahaha. it isn't safe to assume anything in this day and age. Sometimes it is the simple problem which can be the hardest to solve. I am not sure if pumping it dry would damage it. I dont think it would because when you get it new, it is completely dry. It definately seems like it could be a problem with the master though. Is the slave activating the shift fork at all? Probably not it would seem.

Chris859
Posts: 407
Joined: Mon Aug 07, 2006 10:09 pm
Location: Pinetop, Az

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No, that won't hurt it... but as stated - you will need to pull the pedal up manualy with your hand while bleeding - as the internal spring tension isn't enough to return the pedal, and suck in fresh fluid from the master.

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bone_stock_240
Posts: 3467
Joined: Thu Jan 25, 2007 4:50 am
Car: 1995 Infiniti Q45

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The fact that he never got any fluid to come out of the bleeder isn't a good sign though.

Chris859
Posts: 407
Joined: Mon Aug 07, 2006 10:09 pm
Location: Pinetop, Az

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Either way - just keep at it... if you havent yet, slowly move the pedal with your hand in and out a couple inches several times, then hold it to the floor,have someone open the bleeder, then close the bleeder... then SLOWLY pull the pedal back up - and repeat(minus the couple inches part). Just keep at it... It takes a while to get all the air out. I just got done doing mine for the second time last week after I got my transmission back in.


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