Hi DD

Actually Yes, i have removed old brake oil and replaced all the washers on brake drums and also bought a rebuilt washer kit that suit for my Master pump, the size is 11/16

when pumping brake master cylinder sucks little oil and also can hear a little air sucking sound from the small hole in the reserver , but not Cluth reserver does similer, but none of them bleed oil down


fixed it so oil bleeding so removed it to bench test it
and filled oil and pumped it several times but no oil coming from , when you pump front piston it moves down and return back normaly,

is there any specific mechanism to instll small screw under the pump,after inserting clutch piston into the master pump , do i need to put small screw down or after installing both

thanks
regards
sumith