Hi I have a 02 GG EC 250 and I just need to know if anyone has the manual so I can check were the piston sits " Im trying my first rebuild" so wish me LUCK !!!!!
try setting the piston at 75mm from the "top" of the reservoir, and 175psi.
this has worked very well for us, and was the advice we received from the original GG importer( ggna ).