Do I have a bad brake bleeder nipple?

Well, if a bubble is sitting just below the MC, I could see it making its way up..

Other than that, my crazy ideas come from the place that got me to invest all my retirement funds into a new breakfast cereal idea - braille alphabits. ;-)

 

I have never failed to successfully bleed Front Brakes by Pumping Fresh Brake Fluid down through the Calipers using the Pressure developed by a healthy Master Cylinder.

I have my lovely wife on the Brake Lever manipulations and keeping the M/C Reservoir filled-up at least half-way.

I use a high-quality "One Man Bleeder" I bought from the MAC Tools guy many moons ago.

Initially, I have her slowly pump the Brake Lever until the Hose fills and Fluid squirts-out the Check-valve.
Once the Fluid starts squirting-out the one-way; I build-up Pressure and open the Bleeder ...
Letting the Line evacuate any Air left in the System.

If you can't develop Hydraulic Pressure enough to MOVE Brake Fluid out of the Bleeder along with any Bubbles in the works, ...
No pressure.
Spongy Lever.
No Leaks evident ...

Shine the Spotlight on the --> Master Cylinder.

How do I know if my Master Cylinder's bad?

1) "Heavy Fountaining.
2) Won't pump up.

Troubleshooting:

Remove the MC Banjo.
Install short Metric Cap Screw.
Loose Screw Bleed MC.
Tighten Cap Screw.
TEST Lever for Pressure.

If the MC is good and there are NO Leaks ...
The whole job shouldn't take more time than 1.5 Hrs.

Without using a Mighty-Vac.
Or any other unconventional methods.

 

yea, like he said. i might add, everything in life should be such a pleasurable and rewarding experience