Technical Brakes

I have an early 60s style Chevy master cylinder with two outputs. One is marked brake and the other Clutch. At the moment the Clutch side is blocked off and the brake side is working front and back brakes. Can I use this master cylinder to create a dual circuit system? Is there anything inherently different about the Clutch side that would cause a problem?

Thanks
Gus

 

Wouldn't just be more simple to put a mustang style dual master on it? Are a dual nova style

 

I like the style of the master cylinder thats on it and I want to keep it.

 

Are you going to work the thing with 2 pedals? how are you going to activate the clutch side at the same time? Is the clutch side bore the proper size? Lots of ? to answer first. Ralphie

 

My brake pedal is set up to work both pistons simultaneously.

The question is - On a Chevy C10 early 1960s master cylinder, is there any difference between the operation of the two sides of the device?

 

I am sure there is no residual check valve on the clutch side. I have used that M/C a long time ago and had to remove the check valve from the brake side for disc brakes.

 

Yes...The clutch side doesn't have a residual valve, the brake side does..Some had one 1-1/4 bore and other was 1-1/8 bore...Don't remember which was clutch or brake but do know where I left it..Most common used have both bores at 1-1/8 and adding a residual valve to the clutch side will allow to use for brakes; inside like stock that is on brake side or external aftermarket..No difference in pistons/cups...Been discussed here in past, do a search and should turn up some info or who done it..

 

I think you will need to have a pivoting bar on your brake pedal for the pushrods. There needs to be a provision for enequal piston travel between the bores, otherwise the the piston that stops first will limit the application of the second piston.

Perhaps that is what is on your pedal arm currently, but if not, think about changing it.

Ray

 

It can be done but as Ray said on post #8 you will have to figure out the balance bar thing to get it to work reasonably well. I'm thinking that there were some dual cylinder master cylinder setups on some race cars back years ago. You might want to research those setups to figure out what you would need to do to make it work.

Check this site for a dual /double cylinder setup for a TR6 for some ideas on the linkage. https://www.goodparts.com/shop/index.php?productID=473