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Unread 06-06-2013, 06:39 PM   #1
87laredo
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Brake bleeding?

Hello,

I have just completed putting on all new brakes on my yj and even after bleeding the system 6 times I can't get a stiff pedal going. What do I need to do?

Thanks,
Jake

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Unread 06-06-2013, 06:55 PM   #2
jbolty
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are the bleed screws on the calipers facing up?
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Unread 06-06-2013, 07:09 PM   #3
dillonjm
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Did you bench bleed the master (if you replaced it)
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Unread 06-06-2013, 07:17 PM   #4
87laredo
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Yes and it's the original master however everything else is brand new. New wheel cylinders,drums,hardware,shoes,rotors,calipers, pads, and lines all new. And would it be necessary to bleed the old master, or is there a fluid resivor in the master that could be low?
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Unread 06-06-2013, 07:50 PM   #5
Old4X
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Quote:
Originally Posted by jbolty View Post
are the bleed screws on the calipers facing up?
Look again
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Unread 06-06-2013, 08:34 PM   #6
87laredo
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I am 110% sure they are up if I could post pics I would
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Unread 06-06-2013, 08:41 PM   #7
bigbossd1030
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I had an issue with the callipers when I ha them upside down. Went through three litres if fluid bleeding them. If everything is good bleed them again

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Unread 06-06-2013, 08:53 PM   #8
laybackman
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Quote:
Originally Posted by 87laredo View Post
Hello,

I have just completed putting on all new brakes on my yj and even after bleeding the system 6 times I can't get a stiff pedal going. What do I need to do?

Thanks,
Jake
Did you manually adjust the rear brake shoes?

Did you bleed the brakes in the following order:
passenger's side rear, drivers side rear, passenger side front, drivers side front?

If you drained the MC it needs to be bench bled again also.

One other reason for soft pedal can be mushy brake hoses
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Unread 06-06-2013, 09:29 PM   #9
Joe Dillard
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Quote:
Originally Posted by laybackman View Post
Did you manually adjust the rear brake shoes?

Did you bleed the brakes in the following order:
passenger's side rear, drivers side rear, passenger side front, drivers side front?

If you drained the MC it needs to be bench bled again also.

One other reason for soft pedal can be mushy brake hoses
X2. Excellent info.
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Unread 06-06-2013, 10:09 PM   #10
packdog
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Add fluid

In post #4 you ask about a reservoir. Yes, you need to put fluid into it while you are bleeding the lines. If you don't then you will end up with air in the master cylinder and have to bleed the master and start all over again with the lines.
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Unread 06-07-2013, 05:41 AM   #11
laybackman
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Quote:
Originally Posted by packdog View Post
In post #4 you ask about a reservoir. Yes, you need to put fluid into it while you are bleeding the lines. If you don't then you will end up with air in the master cylinder and have to bleed the master and start all over again with the lines.
Agreed! If you failed to add brake fluid WHILE YOU WERE BLEEDING YOUR BRAKES, you weren't bleeding them, you emptied the entire brake system of brake fluid! The MC reservoir should never be allowed to become empty in the brake bleeding process. That introduces air into the brake system.

And no I won't go with you for a test ride on that steep, narrow mountain road near your home when you are done with this brake job!
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