Technical Catastrophic brake issue.

You're right, but depending on what master you use, it could have an internal bias that is already setup for the disc/drum setup

 

I appreciate the lesson learned. Dad and I were driving his 56 Victoria today and discussing how to make his brakes better. His drums stop but it's quite the effort. It's converted to dual but I'm thinking disk on the front like my 56 is in order. It's next on the list.

 

Is there any way to tell if a master has that?

 

The bias comes from the proportioning valve (in a stock factory system). Some masters do have built-in residual valving, if that's what you were thinking of. I like to use a separate PV in any disc conversion that I do, a throw back to my stock car days.

 

There are no internal pressure limiting valves in a dual master- any proportioning and metering are always external. Residual check valves, as stated earlier, were internal, and on all drum brake masters up till the mid '70s.
There are differences in fluid volume or displacement in dual master cylinders, resulting from the different pri./sec. piston strokes in most.

 

Many great comments here. It is imperative to check the brake system frequently no matter what the system is.
The emergency brake also needs to be checked often and kept in adjustment which many overlook or take for granted. I even see cars built without a working ebrake!! Mine are always checked and I have had to use them over the years when brake problems occurred.

 

It's simply amazing.
Pythonesque logic being relied upon for braking systems.

 

Glad you're reading this Shoes. As I began reading it, I instantly thot of your situation. It makes me even happier that your situation was corrected.

 

That's why I didn't drive the car. No reason to put yourself or the public at risk. Thanks again Bowtie Coupe!

 

If you are running single pot brakes it's an idea to fit a float switch to the master cylinder. I bought one off Ebay and mounted it in the master cylinder cap. It's hooked up to a buzzer and light on the dash to warn me if the fluid level starts to drop.
http://www.ebay.com/itm/Mini-Vertic...loat-Switch-/350921497547?hash=item51b48d1bcb

 

"and now for something completely different" "spam,spam,spam,egg and spam"

 

Hey Bob, those are very good points- I thought long and hard about swapping to dual master but as that's a Kurtis built ch***is I didn't want to cut any of his work away!
The float isn't that big in relation to the master cylinder and I think the clue is in the name- it 'floats' above the fluid and doesn't displace anything but air! I checked compatibility and also check it regularly to ensure it's still working. It's been in there 2-years now and so far so good.