What Do Brake Cylinder Stoppers Do?

[hayden49]

My car came with a blue cusco brake cylinder stopper but what exactly do they do?

at first i thought it was just a pretty bit of blue metal but apparently not haha

cheers guys

also i have heard that having one installed you may have to adjust the brake pedal so that the travel in the pedal before you actually brake is reduced?

at the moment it feels like there is a good 20-25mm travel before i actually start to break.

Edited June 11, 2006 by hayden49

[Scooby]

Hi Hayden;

on most oem cars the booster is attached to the firewall and the mcyl to the booster. under hard braking the firewall distorts and therefore interferes with the pressure applied to the mcyl through the booster. the stopper bears against the front of the mcyl and therefore creates more resistance against the firewall ie reduces the amount of the distortion. i have never heard of a travel adjustment being required and i don't see why it would, as it just a brace.

if you are getting that much take up it sounds like you may have air in the brake lines or stuffed fluid. try replacing the fluid and bleeding the lines properly. if it's spongy also this is likely the cause.

i once had a leaking booster an it caused disconcerting inconsistent pedal pressure also, a $200 reco and the problem went away.

check your pads. hard pads can provide minimal bite at cold temps and give the impression of travel.

cheers

Edited June 11, 2006 by Scooby