Brake line Question

[CornerCarvin67]

Does anyone know exactly the function of the braker terminal block that the brake lines go to after leaving the master cylinder? Obviously it splits the one feed to both front corners.... and the third goes to the rear of the car until that line gets split to the corners. But does anyone know if that block has any type of proportioning to it? I want to know if it's bottle necking the fluid at all. Since I put in a Baer proportioning valve in the rear line... I think I could simply put a Tee there in the front and just run the rear line straight out the MC. Any ideas??

 

[Jester67]

It also has the switch for the brake light letting you know if the front or rear circuit fails. It is my understanding that it is not a proportioning valve that is located on the rear axle if the car has stock front disks.

 

[CornerCarvin67]

Well that switch doesn't control the rear brake lights. That switch is under the dash on the brake pedal. I guess I'm not to worried about keep the warning light one then... I'll surely know if I have a failure... whether with my pedal or a big pool of fluid on the ground.

 

[Jester67]

Sorry i should have been more clear it is for the warning light

 

[SuperDave]

What are you working on?

The devil is in the details. What year car are you working on? (BTW, a drum brake car does NOT have a proportioning valve.)

SD

 

[HistoricMustang]

The devil is in the details. What year car are you working on? (BTW, a drum brake car does NOT have a proportioning valve.)

SD

Oh man! Welcome Back!

HistoricMustang
www.historicmustang.com

 

[bnickel]

Does anyone know exactly the function of the braker terminal block that the brake lines go to after leaving the master cylinder? Obviously it splits the one feed to both front corners.... and the third goes to the rear of the car until that line gets split to the corners. But does anyone know if that block has any type of proportioning to it? I want to know if it's bottle necking the fluid at all. Since I put in a Baer proportioning valve in the rear line... I think I could simply put a Tee there in the front and just run the rear line straight out the MC. Any ideas??

it is called a distribution block and that's about all it does, other than the brake warning light

 

[JB66]

I believe it also restricts the leaking line so you don't lose ALL your fluid. It's 'official' name is the Brake Pressure Differential Warning Valve. It is supposedly non-serviceable (for safety sake), but it IS needed in brake systems with split master cylinders. On disc/drum setups, it is usually combined with the proportioning valve.

 

[67CoupeDriva]

All the above...not a proportioning valve, just a distribution block with a little float in between, if it moves too far one way (usually due to fluid loss or brake failure), the float blocks fluid from the offending section and illuminates the dash warning light.

 

[Edbert]

Okay, a few things...

There were more than one of these units sold in 67, three that I can name and their valving IS different. They had them for drum/drum disc/drum and power-disc/drum applications.

The "thing" on the rear axle is a residual pressure valve, always necessary for drums and for discs mounted higher than the MC (not applicable to classic stangs).