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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

bleeding power brakes

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Old Mar 8, 2003 | 11:33 AM
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bleeding power brakes

Quick question:

When you bleed power brakes do you run the engine or leave it off??
 
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Old Mar 8, 2003 | 01:11 PM
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bleeding power brakes

Need help here. I am trying to bleed them and need to know what I need to do. Thanks guys.
 
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Old Mar 8, 2003 | 01:25 PM
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bleeding power brakes

It really doesn't matter. I generally don't start the engine because I don't want all that heat and fumes around while I working. They bleed just fine either way.
 
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Old Mar 8, 2003 | 04:35 PM
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bleeding power brakes

Thanks. Any ideas on how to get a stripped out bleeder nut loose? Don't ask!
 
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Old Mar 8, 2003 | 04:37 PM
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bleeding power brakes

Leave engine off. Start bleeding with the closest to the master cylinder wheel first. Order: Drivers front, passinger front, drivers rear, and last passinger rear.
 
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Old Mar 8, 2003 | 04:45 PM
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bleeding power brakes

Originally posted by 1968F250LWB
Thanks. Any ideas on how to get a stripped out bleeder nut loose? Don't ask!
Vice grips the ultimate tool
 
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Old Mar 8, 2003 | 05:50 PM
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bleeding power brakes

Originally posted by heep70
Leave engine off. Start bleeding with the closest to the master cylinder wheel first. Order: Drivers front, passinger front, drivers rear, and last passinger rear.
I have read on here that the order is reverse of that. So which one is it? Is it just a matter of preference?

Originally posted by sparky
Vice grips the ultimate tool
LOL That is how it got stripped in the first place. You know this redneck reached for the vice-grips at first sign of strippage!!
 
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Old Mar 8, 2003 | 06:10 PM
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bleeding power brakes

I have read both way also but brake shops tell me the closest first. It works for me just fine.
 
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Old Mar 8, 2003 | 06:33 PM
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bleeding power brakes

Be VERY careful with the vice grips on the warbled bleeder valve. I would put penetrating oil on it several times over a 24 hour period. If it breaks, you're screwed and will have to do the easy out thing or replace the part.

On the order, I have always done farthest away first and a glass jar.
jor
 
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Old Mar 8, 2003 | 06:47 PM
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bleeding power brakes

You want to bleed the fartherest wheel cyl from the MC first, then next closest, etc. If you start with the closest first, the air in the fartherest will start moving to the MC so you will have to bleed more brake fluid when you get to the fartherest to get the air that has moved farther down the line back to the WC.
 
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Old Mar 8, 2003 | 06:57 PM
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bleeding power brakes

That makes sense. But either which way the air gets bleed out. Yes, it might move back towards the MC but it won't move down the already bleed lines. No matter if you end up bleeding farthest to nearest or the other way the fluid and the air gets pushed from the MC to the WC you are bleeding.

Both ways are correct, just don't let the air re-enter the bleed zerk after bleeding.
 
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Old Mar 10, 2003 | 09:07 AM
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bleeding power brakes

The best way to fix a stripped bleed valve is to replace the wheel cylinder. They are under $10 each at Autozone and you are going to bleed the system anyway. This is much easier, IMO, than fighting that thing under the truck with a pair of vise-grips.
 
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