RV-10, 99.9% done. My brakes are dragging, and trying to debug I'm running into an interesting issue I'm not sure of how to troubleshoot:
* If I do the traditional bleeding method (push brake, hold pressure, have another person loosen fitting at brake, push out fluid, tighten, repeat) - this works fine from the RIGHT seat. Fluid comes out the valve at the brake. I can do this and draw down the reservoir as you would expect.
If I do this from the LEFT seat, it seems like it sucks in air. It pushes out fluid at the brake, but nothing draws from the reservoir, and after retightening, the brake gets mushy. The only way to unmushy is to push fluid from the RIGHT seat again.
* I can't seem to force fluid "up" from the bottom. If I do, it seems to displace any air that might be in the line, but as soon as that's quickly displaced, no more fluid goes up. The reservoir level never changes. And yes, I am loosening up the fitting the fluid is connected to in order to let it go up into the break.
I've quadrupled checked the plumbing. I'm not finding any leaks at any of the fittings, including in the tunnel or under the seats. It's acting almost like there's a check valve between the left and right sides, but even then, I'm not sure why when pumping from the left side it wouldn't draw via the reservoir.
This happens for both the left and right brakes independently.
Any obvious thoughts I should try? My next step will be to loosen each fitting and verify I'm getting fluid to it when pumping from both directions.
* If I do the traditional bleeding method (push brake, hold pressure, have another person loosen fitting at brake, push out fluid, tighten, repeat) - this works fine from the RIGHT seat. Fluid comes out the valve at the brake. I can do this and draw down the reservoir as you would expect.
If I do this from the LEFT seat, it seems like it sucks in air. It pushes out fluid at the brake, but nothing draws from the reservoir, and after retightening, the brake gets mushy. The only way to unmushy is to push fluid from the RIGHT seat again.
* I can't seem to force fluid "up" from the bottom. If I do, it seems to displace any air that might be in the line, but as soon as that's quickly displaced, no more fluid goes up. The reservoir level never changes. And yes, I am loosening up the fitting the fluid is connected to in order to let it go up into the break.
I've quadrupled checked the plumbing. I'm not finding any leaks at any of the fittings, including in the tunnel or under the seats. It's acting almost like there's a check valve between the left and right sides, but even then, I'm not sure why when pumping from the left side it wouldn't draw via the reservoir.
This happens for both the left and right brakes independently.
Any obvious thoughts I should try? My next step will be to loosen each fitting and verify I'm getting fluid to it when pumping from both directions.