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  #1  
Old 04-20-2016, 09:17 AM
T.O.Craig T.O.Craig is offline
 
Join Date: Feb 2006
Posts: 165
Default Bleeding Brakes

Hello to all,
Thought I would tap into the "Brain Trust". Getting ready to put brake fluid into the system. What are we using to pressurizing the system? I think I should fill from the calipers. Any hints would be appreciated.
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FLYING NOW AFTER 13+ YEARS. NICE FLYING AIRCRAFT!!
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  #2  
Old 04-20-2016, 09:24 AM
rocketman1988 rocketman1988 is offline
 
Join Date: Jun 2010
Location: Sunman, IN
Posts: 2,189
Default Not pressure, vacuum

Go and get a mighty vac or something similar. Attach to reservoir, attach tube to bleed screw on caliper, put tube in fluid, draw a vacuum and open the bleed screw...
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  #3  
Old 04-20-2016, 09:41 AM
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Planecrazy232 Planecrazy232 is offline
 
Join Date: Aug 2015
Location: Cape Coral, FL
Posts: 350
Default

I use a pump type oiling can from the hardware store, slip a tube over the nozzle and fill from the caliper on up.
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  #4  
Old 04-20-2016, 09:47 AM
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Auburntsts Auburntsts is offline
 
Join Date: Jan 2005
Location: Tampa, FL
Posts: 2,861
Default

I use the ATS Blake bleeder tank which looks like a glorified garden sprayer tank.



Many have rolled their own.

The hose has a quick release and comes with a couple fittings to mount to most calipers. You attach the tank to the bleeder and run a hose out of the top of the reservoir to catch any overflow. With the tank connected to the bleeder and the tank's valve closed, you pump the tank up, open the bleeder, then open the valve on the tank. The pressure forces fluid from the tank to the reservoir pushing all the air out along the way. Takes me less then 10 min to do both sides.
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  #5  
Old 04-20-2016, 10:10 AM
jburr1 jburr1 is offline
 
Join Date: Mar 2012
Location: High River, Ab
Posts: 12
Default

large disposable syringe from farm supply place (50ml from memory) and a piece of vinyl tubing, push up from caliper bleed screw, my matco set up takes 1 full syringe,
cost, about $2.50 for syringe

Jay
CGVRZ
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  #6  
Old 04-20-2016, 10:54 AM
n816kc n816kc is offline
 
Join Date: Jan 2005
Location: Winter Haven, FL
Posts: 263
Default +1 Planecrazy

I do the same. Cheap pump oil can and short piece of tubing. Push fluid in from caliper until it runs out the reservoir. Much easier if the cap is off
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  #7  
Old 04-20-2016, 12:02 PM
Bevan Bevan is offline
 
Join Date: Sep 2007
Location: BC
Posts: 1,674
Default

I also do same as planecrazy. Remember, there will be times to bleed one side or the other and having that dedicated pump can ready to go is handy.

Bevan
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  #8  
Old 04-20-2016, 12:13 PM
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AX-O AX-O is offline
 
Join Date: Jun 2005
Location: SoCal
Posts: 2,452
Default

I wrote an article on KitPlanes about making a pump similar to the one shown above. All the parts came from a hardware store and it cost approx $20. A few pumps to pressurize the tank and no more work. It was around nov/dec 2014. Everyone around the airport comes and borrows it. They just add fluid to the container.
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  #9  
Old 04-20-2016, 12:31 PM
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drill_and_buck drill_and_buck is offline
 
Join Date: Feb 2005
Location: Bridgewater, MA - KPYM
Posts: 458
Default

I use an RC model electric fuel pump to both suck out the old fluid and pump in the new. To fill or extract connect the pump to the caliper.

I have a modified brake reservoir cap with a hose that I place in an empty water bottle. When filling I run the pump until brake fluid exits the reservoir. This helps ensure that any air bubbles are removed. Takes about a minute a side. (I have a reservoir attached to each master cylinder).
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  #10  
Old 04-20-2016, 03:21 PM
T.O.Craig T.O.Craig is offline
 
Join Date: Feb 2006
Posts: 165
Default Thanks to All

Thanks to all for the enlightening. I think I will try the oil can method for starters. I think Harbor freight might have the MITY VACUUM also if the oil can does not work....
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Craig Rufi
FLYING NOW AFTER 13+ YEARS. NICE FLYING AIRCRAFT!!
RV-10/Empennage/Wings/QB Fuselage/Wiring/Doors done finally, Cowling done. Stein panel complete, and connecting all those wires :-))Thousand Oaks, Ca. Dues paid for 2019
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