brake light switch adjustment

[cst350]

So I adjusted the rod to my Master Cylinder today. Working on a 69 with a 72 master cylinder and front discs from ECE.

I had the pedal rest on the bumpstop and adjusted the rod so that I have 1/8" of free play before the MC is engaged. Problem is that now my brake light switch is compressed too far for it to come on when I press the pedal down (@ 1 inch when the engine is off). I have the switch is backed out as far as it will go.

I was wondering if anyone has a dimension between the pedal arm that hits the switch and the bracket that holds the switch. Right now mine is less than 1/2 inch.

Anyone else run into this???

Thanks

[cst350]

Yup... Xmas for me means working on the truck without interruption!


New question... can anyone tell me (or better take a pic) of the resting hight of there brake pedal from the floorboard or in comparison to the gas pedal? It might be that my pedal stop bumper is no longer the size it needs to be.

I have thought to make an adjustable pedal stop bumper to limit the travel of the pedal in the up position.That way I can shorten the MC rod and have clearance for the switch.

Thanks again for any help

Merry Xmas

[Hawghauler]

When I switched to power brakes, I set the pedal as close to the floor as I could without it bottoming out, leaving about an inch more room than needed. I didn't like how high the pedal was on non-power brakes. It used to hit the bump stop whenever you let go of the pedal. Now it never does. It makes the transition from gas to brakes a lot faster and easier.

As long as you have enough room to press the pedal all the way until it won't move anymore, and give yourself another inch of room after that, you should get all the effort the brakes can give without having to bang your knee on your chin trying to get a foot on top of the brake pedal.

This also gives you lots of adjustment to the brake stop light switch.