Jeff, I'm not sure that is true on my cylinders. I installed a fitting in the top and tubing out of both cylinders and vented them through the bottom of the fuselage. I wish I could follow your advice on the tubing size but it has to be fished through several holes that I know I drilled just big enough to get the 1/4" tube through. The brake line is entirely built in until it is in the cabin. If I could do it over it would have been all aluminum tube. I was actually thinking about using a short length of braided hose in the wheel pant to connect the caliper to the polyflo tube as I was a little concerned about vibration and work hardening of the aluminum tube and there is not much inside the wheel pant area that I would want to mount brackets to either. Joe Horton, Coopersburg, PA. joe.kr2s.buil...@juno.com
> Joe, > > The fluid is on top of your master cylinders because they are > slightly over serviced. As heat builds in your brakes, the > expansion will push some fluid back up into the master cylinders > causing them to overflow out the top vent if they are completely > full. FWIW, it won't hurt anything. Just wipe them off. > > Do yourself a favor. As long as you are going to be replacing the > brake lines, if you still want to use plastic, use the 3/16" > nylaflow instead of the 1/4" nylaflow. The smaller diameter tubing > won't waste nearly so much of your brake pressure to surface > expansion of the tubing. I changed my KR, another KR and another > plane that I built from 1/4" to 3/16" nylaflow and have > significantly improved the braking action on all of them. Keep in > mind that you want to switch to aluminum tubing or some other type > of heat resistant hydraulic line at the bottom of the gear legs > before it enters the wheel pants. > > Jeff Scott >