On Wed, Oct 1, 2008 at 3:45 PM, Doug <[EMAIL PROTECTED]> wrote: > > ** Reply to message from "James G. Sack (jim)" <[EMAIL PROTECTED]> on Wed, 01 > Oct 2008 14:44:02 -0700 > > > How _do_ they do emergency brakes on a 4-wheel-disk system? > > good question. I can only guess that there is a mechanical lever which would > move the caliper onto the rotor. Maybe from a lip on the shoe or something > like that. I don't know if they'd go with hydraulics since it would require > a valve to keep pressure from going back up the brake lines. >
Good guess. According to wikipedia: In cars with rear drum brakes, the emergency brake cable usually actuates these drums mechanically with much less force than is available through the hydraulic system. In cars with rear disc brakes, the emergency brake either actuates the disc calipers (again, with much less force) or a small drum brake housed within the hub assembly. -- KPLUG-LPSG@kernel-panic.org http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-lpsg