The Triumph 2000 / 2500 / 2·5 Register Forum

my car is a RHD MK2 with its original single -circuit brake system.

what main parts would i need to convert to a dual circuit. can is just source / install the Tandem-Master used in export versions of the MK2?

I used a Stag M/cyl, need to replace the 4-way union on the inner wing with a 3-way and run a rear brake line down to splice into the rear circuit. I did replace all components with Stag parts however, including the Servo.

ok....the question is: is it "just" a direct swap of the cylinders, without using the stag´s servo?

GinettaG15 wrote: Sun May 07, 2023 7:37 pm ok....the question is: is it "just" a direct swap of the cylinders, without using the stag´s servo?

You will have to change the 4-way union to a 3-way union and connect the rear circuit from the m/cyl to the rear circuit.

iani wrote: Sun May 07, 2023 7:55 pm

GinettaG15 wrote: Sun May 07, 2023 7:37 pm ok....the question is: is it "just" a direct swap of the cylinders, without using the stag´s servo?

You will have to change the 4-way union to a 3-way union and connect the rear circuit from the m/cyl to the rear circuit.

thats obviously clear...

so i just buy the tandem, change some piping and thats it? brake balance won´t be negatively effected (over-braking at rear?)

https://rimmerbros.com/Item--i-GRID008720

spring and plunger on servo side are not present at the single-cylinder.
7/8" bore diamter looks 2mm bigger than the single one?

Did you get an answer to this question? Can you use the stock, single system servo, or do you need to install the dual system servo?