Do ya all have your thinking caps on...... So here's what going on.
My 1800S is with single system disks front shoes rear with booster. I have re-kitted the master cylinder and wheel cylinders, brakes adjusted and bled. Booster removed (due to severe leakage). There is fair pedal pressure (and no air in system). The problem is the break pedal is about 2" lower (to the floorboard) than the clutch pedal. Easy, you say, just adjust the push rod of the break cylinder. I agree, however the yoke at the end of the push rod (which attaches to the break pedal) is at maximum. Or, you might say shorten the clutch travel to that of the brake. (note the clutch master cylinder was also rebuilt).
I have measured both the push rods in the break and cluch cylinders and they appear to be approximately the same at 2.5" (the correct push rods are in their respective cylinders).
I had a low pedal on an old pickup truck years ago, and found that the parts store had sold me the wrong kit that had the wrong piston in it. The parts store replaced the kit and I changed pistons and the pedal then was at correct height.
Could this be the problem? The piston from the break master cylinder is marked SCHAFER with #H2246 on it and is 2.5" long. Wrong kit? Without dismantling the break cylinder I can't tell if the piston removed is the same as the one installed.
Given that the push rods of both the clutch and break cylinders are the same length, you would think the pedals would be at the same height. So Why aren't they.
By the way I took the 1800 on its first road test (10 miles) and after sitting for over 18 years without running it performed as well as the day it was delivered to the owners. Love that 4 speed, tight suspension, what a thrill after many months on this project. That was the first payoff. By the way, on the trip I sucked a MGB into the intake manifold doing 85mph, is this hard to fix.???
I'm Havinfun