still no pedal.
got a syringe and hose today. syringe is about 4" long and 1" in diameter. the clear hose or tube is an excellent fit on syringe and extremely tight on bleed screw. Pulling syringe plunger out with or without fluid in tube did bring a few spits of fluid and what seemed to be a fair amount of air into tube. as soon as i shut off nipple and started again with syringe it was like being back at square 1. Pushing plunger the other way did not make any impression at all.While all of this was going on my fluid level did not drop???
I did a very basic air test on caliper and air was coming through bleed nipple hole. i removed the exhaust, yes exhaust then removed the master cylinder. did an air test on hoses and they appear clear. Emptied reservoir and feed pipe air tested fine too. Took master cylinder apart and to be honest i'm a bit baffled as to how it works. anyway it has one spring, one central rod with two seals on it and a central groove.The central groove does not appear to line up with inlet or outlet? the rear seal is tapered so the only conclusion i could draw was that the rear seal must collapse under pressure to allow fluid to circulate.
Put a high vacuum pump on to bleed nipple and it is drawing fluid and air. i've had enough for today so i'll go back to it tomorrow. thanks again for all the help it,s much needed and appreciated