Brake fluid : Air in cylinder?

I think I messed up. I detached my brake from the hose and left it dripping, letting air into the line.

After reinstalling the caliper, I had a friend pump the brake while watching the master cylinder to make sure it never bottomed out. I bled both the bleeder screw and the banjo screw

I am getting clean brake fluid out with every pump, but I don't have any braking pressure. We went at it for 10-15 minutes. I stopped halfway through and shook the front end a bit. Will doing this for another 15 minutes achieve anything?

How bad did I mess up?

 

tried closing the bleed screw to get pressure?

it helps to let it sit for a day or 2 and bubbles will rise up to MC....

 

What gen VFR do you have?

 

Drama over

I've a third gen. And I had to take out the calipers so I could scrub the pistons. I guess I got a little obsessive. I just couldn't let them be. I mean, it looked like they hadn't been cleaned in 17 years. I'll leave them connected next time, though. I've figured out you can twist the piston 360 degrees while it's still assembled, if you use the right vice grips.

Anyways, the crisis is over. I went back out and tried it again. This time I paid more attention to how we pumped the brakes. My buddy was pumping them all at once like an on/off switch. With a little bit of practice, we got the air out!

So now I've replaced the rotors, the brake fluid, and the pads, and my brakes feel better than ever. The kicker: the biggest single improvement to my braking was the new brake lever (old one was a little rough where it presses the caliper piston). Go figure.

 

Want LOTS more improvement??

Go to steel braided brakelines, and your lever will feel like you're squeezing a brick, while it feels now like you're squeezing a tennis ball.

Expect to pay at least $120.

 

Yep, I honestly want to upgrade, one day. But question: is there any chance of "losing the prime" on the master cylinder while doing that? Or is that something that only happens with specific car/bikes? I read about "bench priming" a master cylinder, and that doesn't sound like much fun at all.

 

FEAR NOT !

it's all easy, man, once you have some experience.....

bench bleed is far quicker than full system bleed...all you need is brake fluid ....and your thumb!