Good stuff, please update us!!I disassembled an NSX ABS module today. The individual modulators were assembled with some kind of grease that is compatable with brake fluid. Anyone out there know what grease this is?
As I look at this assembly I think I see where we are having our problems. The electro valves have very fine screen mesh on both ends that keep small particles from getting into them, but there is nothing that keeps the small particles away from the seals in the modulator valves them selves. I have completely disassembled one of the modulators and the single lip seals look good with a magnifing glass. There is really nothing to it. Remember it is Japanese engineering, simple, well designed and repairable.
There was a large amount of small particles in the modulator valve part of the main body. I think that this is where our problems are coming from. These small particles are causing the seals to leak. This causes the accumulator to loose pressure and in turn causes the pump to attempt to maintain pressure in the accumulator.
My theory is that a complete disassembly, cleaning and reassembly will take care of the continous pressure bleed in the ABS unit.
If I can't find a compatible grease I will assemble with brake fluid as a lubricant for the o-rings and seals. I will then install, bleed and test the unit as soon as possible.