Brake Bleeding Tips

[timk]

I've read where some, on their last bleed, close the bleeder and tape the brake lever to the grip and leave it overnight. Supposed to open a port in the master cylinder??????

 

[wfooshee]

I've read where some, on their last bleed, close the bleeder and tape the brake lever to the grip and leave it overnight. Supposed to open a port in the master cylinder??????

Doesn't "open a port" other than the one normally used to pump fluid, but by leaving it open it gives air bubbles a path to float out of the system and into the master cylinder reservoir, where they come to the surface and pop. Once the air is behind the master cylinder's piston it's out of the braking system.

You'll also find any leaks in the system, like bad fittings or seals, as brake fluid will be present near such leaks.

 

[jcyuhn]

I resorted to using the mityvac and conventional squeeze/turn bleeding simultaneously.

Now that's an interesting idea. Suck and blow at the same time. How can that not be fun?

How can today NOT be Friday?

...a quick squeeze of the brake level shoots a drop of brake fluid up...

You betcha. Hit the ceiling the first time I tried it.

Thanks!

I chose the words very carefully when writing up that posting... Checked the calender first, too.

 

[FjrVfr]

[SIZE=36pt]SUCCESS![/SIZE]

If anyone's interested, here's the procedure I came up with:

I pulled the suspect caliper and put some shims in between the pads to simulate the rotor. Then I bungied the lever to get the bubbles small and reduce surface tension. With the caliper in hand and while rotating and changing it's orientation I rapped on it lightly with a ball-peen. A couple of squeeze-bleed-release cycles and I'm back, baby!

Ahhhhh, that's better.

Thanks for all the helpful suggestions and wisecracks.