Brake bleeding

[D&J Edgar]

> Concept is that air bubbles naturally rise to M/C

Yes but in the case of the TC the M/C is below the level of the slave cylinders. Should still work though. David Edgar, TC 5108 El Cajon, California

[Roger]

If you think it is tough to bleed TC brakes you should try an MGA. The MGA Guru site has a nice description of a homemade pressure brake bleeder made from a garden sprayer. You can find full instructions at http://www.bmw-m.net/TechProc/bleeder.htm You have to sacrifice a master cylinder cap to install a tube in it. Extend the tube into the master cylinder so that the end of the tube is at the correct level for the brake fluid in the master cylinder. The trapped air above this line keeps the master cylinder from overfilling. You can pump as much brake fluid through the master cylinder as you want and the level will stay just where it should be. Of course, this will use about a quart of brake fluid to fill the sprayer and hoses, and make sure all the connections are tight so you don't blow brake fluid everywhere. It works, but unless you are bleeding brakes frequently (or have an MGA, or the misfortune to use an MGA master cylinder to make a dual circuit system in your TD - sigh) it is much less bother just to follow the instructions in the owner's manual.

--- In mg-tabc@yahoogroups.com, taterry@... wrote: > > > Has anyone devised a method to keep the M/C can full of fluid while bleeding?? > Terry in Oakland > > > > > > [Non-text portions of this message have been removed] >

[George Wolf]

Roger, The bleeding problem is identical to the early Sprite/Midget 948 and 1098 with the dual master cylinder. To complicate the problem, the bleed screw on the clutch slave is on the bottom, so the air is difficult to expel. I ran a tube from the right front bleed screw on the brake cylinder to the slave bleed screw, pumped the brakes and pushed the bubble back to the M/C. Seemed to work fine and had the bonus of not losing brake fluid or over flowing the M/C. Probably would work on MGA as well. Cheers, George Wolf TC3452 British Auto Specialty From: mg-tabc@yahoogroups.com [mailto:mg-tabc@yahoogroups.com] On Behalf Of Roger Sent: Saturday, March 19, 2011 10:09 AM To: mg-tabc@yahoogroups.com Subject: [mg-tabc] Re: Brake bleeding If you think it is tough to bleed TC brakes you should try an MGA. The MGA Guru site has a nice description of a homemade pressure brake bleeder made from a garden sprayer. You can find full instructions at http://www.bmw-m.net/TechProc/bleeder.htm You have to sacrifice a master cylinder cap to install a tube in it. Extend the tube into the master cylinder so that the end of the tube is at the correct level for the brake fluid in the master cylinder. The trapped air above this line keeps the master cylinder from overfilling. You can pump as much brake fluid through the master cylinder as you want and the level will stay just where it should be. Of course, this will use about a quart of brake fluid to fill the sprayer and hoses, and make sure all the connections are tight so you don't blow brake fluid everywhere. It works, but unless you are bleeding brakes frequently (or have an MGA, or the misfortune to use an MGA master cylinder to make a dual circuit system in your TD - sigh) it is much less bother just to follow the instructions in the owner's manual. --- In mg-tabc@yahoogroups.com , taterry@... wrote:

> > > Has anyone devised a method to keep the M/C can full of fluid while

bleeding??

> Terry in Oakland > > > > > > [Non-text portions of this message have been removed] >

[Non-text portions of this message have been removed]

[John S. Kallend]

I always thought TC brakes were pretty easy to bleed. I just follow the instructions in the owner's manual - they work for me.

> If you think it is tough to bleed TC brakes ...

_________________________________ John Kallend Professor and Associate Dean Armour College of Engineering, IIT