I have a 65 2+2....

I just converted to Discs on the front and keeping the drums on the rear.... Do i need the distribution block ?

I know I should add in the Adjusting valve that came with the kit.....but If i need the distrbution block along with the adjusting valve....

has anyone used a adjusting proportion valve & distrbution block in an all in one....im attaching a pic..

OR should I NOT use the "all in one" and keep them seperate ?

 

All the distribution block does is split the brake fluid to the two front wheels and to the rear. In the 65-66 disc brake system, because you got drums in the back, you need a porportioning valve that reduces the volumn of fluid to the rear brake cylinders. If that adjustable device does only vary the amount of fluid, then you need the distribution block to split the flow to the front and rear. The adjuster would go in the line to the rear. Now, what that switch (the thing with the two terminals) does is another question. I can see three holes (are they threaded for brake lines) so this device may do more than one function. When in doubt read the directions.
Jim

 

For the record, the proportioning valve adjusts the pressure, not volume. The '65 with disc/drum came with a proportioning valve for the rear. You can use an adjustable proportioning valve and be good to go. If you want to spend more money or already have it, the distribution block you listed above will work fine but is not necessary. Your '65 won't use the brake light connection if you use that block.

 

Technically, all that is inside a porportioning valve is a small hole. An adjustable valve varries the size of the hole. Using Bernoulli's principle, oops, your're right. It drops the pressure - except after the restriction, the pressure returns to that prior to the restriction - Bernoulli's principal. So what does happen? It slows down the volumn (a function of pressure) of fluid to the rear brakes, thereby giving time (just a fraction of a second)for the front discs to engage before the rear drums.
Jim

 

Jim, citing Bernoulli, you must be an engineer also, huh? Your pocket protector is showing.

 

A search in the back issues at brakeandfrontend.com for "proportioning valve" will turn up an article that appeared in the Feb 2003 hardcopy of that magazine. The article provides a few sketches.

Edit: sorry, but a direct link to the article is not available.

Norm

 

Gothand,
Please, retired pocker protector - and production manager, logistics engineer, salesman (Home Depot - I lost 30 pounds), mechanic, cook, carpenter and this list goes on. In my case, it's called gathering experience and stems from the fact that I get bored easily. Oh, I almost forgot - off-road racer.
Jim

 

What they sent you (your picture) is a distribution box AND porportioning valvein one.

 

I'd use it, it looks really simple.....and shinny....[sm=shades.gif]

 

No you don't need it at all. They just randomly bolt on things at the factory for no particular reason. Geesh!