Originally the brake lines ran from the master cylinder to the modulators and then to the brakes. What you need to do is basically by-pass the modulators.
So, either with a new XR3i master cylinder or the original with the top two returns blocked, the brake lines run as follows - well this is how they are on my car.
The brake line closest to the servo runs down to a t-piece on the drivers side of the inner wing. Here it splits and goes to the front driver side and to the rear passenger side(same as before). The other brake line runs to a t-piece on the passenger inner wing and again splits to the passenger side front and the driver side rear.
If you have a copy of the Haynes manual to hand, then turn to the schematic on page 9-15. At the bottom of the diagram there are the four lines that come in and out of each modulator ( 2 each ). If you label each of the lines from right to left 1,2,3,4, then you need to connect directly line 2 to 1, and directly line 4 to 3. If you do this, then you should have the same layout as I do.
Once everything is all connected back up, bleed the brakes and disconnect the belts. You can also remove the modulators. They weigh a ton and are now useless anyway.
Last edited by Karlos G; Dec 26, 2008 at 04:37 PM.