braking circuit through the stop light switch

[maxwedge5281]

i replaced the single circuit master cylinder with a wilwood dual brake circuit. in doing this i placed the adjustable brake bias in the rear brake circuit and then routed the rear brake line to the rear. in doing so i bypassed the brake fluid distribution block on the right front corner just behind the front tire. the brake distibution block now serves to distribute the fluid pressure to the two front wheels and to hold the brakelight pressure switch. i plugged off the other port which previously served to send brake fluid to the rear brakes. with pressure and electrical to the brakelight pressure switch i now do not have rear brake lights....so in bypassing the distribution block for the rear brakes evidently the pressure switch is just pressurized by the rear brake pressure? without taking the brake lines loose does anyone know if the block is ported to all lines internally? thanks for any help!

 

[vette]

Max, I'm pretty sure that it is ported equally to all opennings. As a matter of fact, when I put mine back together, I accidentally rotated it I think about 90 degrees and I have the switch in the wrong port. works great. I'd check for power thru the switch. Also you might have gotten a little dirt into the end of the switch. In photo, my switch is in the port at the top which should be for the rear brake line. Dave.

 

[steveg]

Sounds like your switch has quit. They're known for being unreliable. There wouldn't be any way to plug the rear port that would block the brake switch unless maybe you ran a screw into the hole down into the center of the block.

 

[John Turney]

I did the same thing you did, blocking off the port to the rear brakes and activating the switch using the pressure on the front brakes only. Mine works fine. Check to see if the switch works using an ohmmeter or voltmeter on the contacts. It's either the switch or the wiring.

 

[maxwedge5281]

thanks guys. when i jump the two wires the brake lights work...so it must be the pressure switch. i wonder if i could find one at a local parts store???

 

[Patrick67BJ8]

thanks guys. when i jump the two wires the brake lights work...so it must be the pressure switch. i wonder if i could find one at a local parts store???

Whynot install a mechanical switch?

 

[maxwedge5281]

i thought about that! but, i do like the simplicity of the pressure switch.. thanks again for all the comments!

 

[maxwedge5281]

new pressure seitch solved the problem! thanks for the help!