Single circuit master cylinder

["Adriaan Loedolff" <ADRIAAN@norton.ctech.ac.za>]

Hello to you all

As you might recall, I am helping a friend fix his '67 Notchback. 
(You know the one where the engine fell off the jack!!) Well, the 
engine is back in and it seems to be fine so I guess I was lucky!

Anyway, I am now busy rebuilding the entire brake system as 
everything on this car was shot. I've had all 6 wheel cylinders 
resleeved in stainless steel and the drums were skimmed and new shoes 
made up, I even got new ATE wheel cylinder washers, so everything is 
brand new. I am going to remove the master cylinder tonight as I 
suspect that it too will be pitted and scored. It will probably have 
to be resleeved as well. What does one have to look out for when 
rebuilding a single circuit master cylinder? I have opened my dual 
circuit one before and it doesn't seem complicated but one of my 
manuals speak of a special check valve inside the master cylinder. 
How do I test to see if it is working right? I should be able to get 
all the parts from an excellent supplier in my area.

Regards

Adriaan Loedolff
adriaan@norton.ctech.ac.za
'69 Squareback Automatic (199 500 miles)