Thanks appreciate the reply
I have a 1960 Lincoln continental convertible that I’m busy restoring, it’s been on the road all summer but it is work in progress., always something to do but I love it.

I have two 59s one rag top and one coupe .... they keep me busy .....
Most of the DIYs are by yours truly ......Feel free to contact me any time ....

Two Lincoln’s my word that will keep you busy.
That’s great to know thanks that will be extremely useful.

I visit the US every year with a bunch of guys to go on a road trip, heading over in October for some car shows and drag racing for a couple of weeks. We usually end up buying a couple of motors and shipping them back to the UK to play with.

Do you know how many of the rag tops are left in existence?

Have a great day

Barry

not many ....
The one convertible I have only has 17000 miles ...... so it seems .... not in the best of shape but it runs and drives.

Rev D: Revised to show modified short pin between master and booster and Trouble Shooting guide

Hi guys.

I’ve converted the brakes off my ‘60 Lincoln in just the same way as described here but have a hard brake pedal and almost no assistance from the booster.
They say the pedal ratio might not be good or to less vacuum.

I have 18 inch vacuum so should be okay!? Did you change anything else?

I have not made any other changes. You may want to check the vacuum reserve tank behind the inner passenger wheel well.... Yes I have heard of fabricating new linkage for the brake pedal to change the ratio. I have not done that...

Thanks for your quick reply.
What make of booster/master did you use? I have a 7" dual diaphragm booster with dual from Tuffstuff but it gives almost no assistance! It's dangerous to drive the car, and won't any more.

Some say a 7" booster won't stop our big and heavy cars, I just think the booster and or master are not working like it should. I've followed it step by step and did the exact same things as you did.
Any advise would be great!

Vacuum reserve is okay. I've not used the car in 2 days and still had a small bit of vacuum in the system, so it air tight enough.

To all: Retrofitting a new Dual Master Cylinder.
Additional Information for calculating brake pedal ratio added 07/14/2020 Rev D