REFLECTOR: air in break line

[Barry Gibbons]

I will go and check to see that all of the fitting have the tubing insert.
No parking brake.

Barry

 

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Jerry Brainard
Sent: Monday, April 18, 2011 6:50 AM
To: 'Velocity Aircraft Owners and Builders list'
Subject: Re: REFLECTOR: air in break line

 

Just to be complete, did you use the little tubing inserts for the brake
line fittings?  They go into the line to strengthen the tube under the
clamping force of the brass ferrule.

 

Do you have a parking brake?  We were never able to successfully bleed the
brakes with that installed.  I assume it was the installation position
because others have been successful.

 

Another consideration might be to elevate the nose to help the air to move
to the cylinders.

 

Bleeding the brakes can be one of the most maddening things you will do on
the Velocity.

 

Jerry Brainard

Jerry at JLBEnt.com

  _____  

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Barry Gibbons
Sent: Sunday, April 17, 2011 9:48 PM
To: 'Velocity Aircraft Owners and Builders list'
Subject: REFLECTOR: air in break line

 

Hello

For about two month I have been trying to bleed my left break. I replace the
master cly. Three times, rebuild the caliber twice; replace break line to
gear leg and still getting air in the line. No sign of fluid leak. It looks
like it coming from the master cyl. After I reverse flow and no bubbles I
stop. Then when I push on the brake you can see a bubble come from Master
cyl. You wait until the next day you can see more air in the line. But
changing it three times it has to be something else. Any suggestion on what
I can try or where the air might be coming in from. I have done reverse flow
and pumping break and bleeding at caliper.

Barry

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