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  #1  
Old 12-21-2009
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Clutch Master Cylinder

93 Ford Ranger Just installed a newer tranny (blew out 3rd in the old one) installed new clutch, slave cylinder and clutch master. But now Im having the hardest time figuring out how to bleed the dang clutch master. Any help would be appreciated!

Happy holidays
Robert
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Old 12-21-2009
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do you have a haynes manual?
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Old 12-21-2009
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same way you would with brakes.....

open bleeder.....pump pedal until it squirts......close bleeder....continue until pedal is firm
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Old 12-21-2009
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did you bench bleed the clutch master cylinder before you put it in? if not take it back out and bench bleed it, it will make thing alot easier. here is a link on how to bleed the slave. Bleed A Hydraulic Clutch
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Old 12-21-2009
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Originally Posted by TheStig88 View Post
same way you would with brakes.....

open bleeder.....pump pedal until it squirts......close bleeder....continue until pedal is firm
WRONG dont open the bleeder then pump. you pump then open the bleeder and hold petal to the floor then close bleeder and pump up again.


If you pump with the bleeder open you will fill it with more air
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Old 12-21-2009
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Sometimes you can get an air lock in the master. It requires you to take it loose from the fiewall and angle it so the line is upward then go underneath and open the bleeder til you get straight fluid and reinstall. I have had to do this before and it fixed the problem.
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Old 12-21-2009
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same way you would with brakes.....

open bleeder.....pump pedal until it squirts......close bleeder....continue until pedal is firm
Im talking about the clutch master not the slave its self
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Old 12-21-2009
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Originally Posted by wvcat View Post
Sometimes you can get an air lock in the master. It requires you to take it loose from the fiewall and angle it so the line is upward then go underneath and open the bleeder til you get straight fluid and reinstall. I have had to do this before and it fixed the problem.
Thank you. I will try that out tonight when i get off my lazy *** :p
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Old 12-21-2009
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Try bench bleeding it before you put it in... It's what I had to do with mine
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Old 12-21-2009
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WRONG dont open the bleeder then pump. you pump then open the bleeder and hold petal to the floor then close bleeder and pump up again.


If you pump with the bleeder open you will fill it with more air
common sense obviously.
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Old 12-21-2009
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Try bench bleeding it before you put it in... It's what I had to do with mine
Thats where I went wrong. I didn't think of bleeding it before i put the sucker in
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Old 12-22-2009
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vac pump works wonders on em
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Old 12-22-2009
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i have the same problem. i recently replaced the clutch master cyl. and i have to pump the pedal several times on every morning to make it work. i donīt know what to do, the slave is ok and it donīt have any fluid leak. after i pump the pedal many times it works fine for about 10 min. and i have to pump the pedal again about 15 times to make it works again. what can i do? i bleed it. and i think it dont have air inside.
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Old 12-22-2009
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Originally Posted by rangeroso View Post
i have the same problem. i recently replaced the clutch master cyl. and i have to pump the pedal several times on every morning to make it work. i donīt know what to do, the slave is ok and it donīt have any fluid leak. after i pump the pedal many times it works fine for about 10 min. and i have to pump the pedal again about 15 times to make it works again. what can i do? i bleed it. and i think it dont have air inside.
You have two choices.
1 remove the master cylinder far enough to tip it with the push rod down and bleed it through the bleeder screw on the slave.
2 Have someone under the truck to open and close the bleeder screw.Pump the pedal vigorously 8-10 times , push and hold it to the floor and immediately open the bleeder.
What you are trying to do this way is break up the large air bubble in the top of the master cyl into small bubbles that partially mix with the fluid. Note that the air won't stay separated from the fluid but for a second or two , so you have to be quick about this.
Repeat this 5-6 times , then see what pressure you have.
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