If everything is put back together properly, try pumping the leveler, bleed the line and close the slave nipple, then let the lever go! Let it "snap" back open. Make sure the reservoir cap is in place!!! The shop manual has this tidbit in the fluid replace section for the clutch (Sec 5-5 "quickly release lever"). When I completely drained the clutch lines, I bled a hole bottle of Dot 4 thru it with no luck. Finally found this part in the manual about letting the lever snap back and tried it. Two bleed cycles and it was done! Good luck.
BTW, this method along with T Cro's suggestion of strapping the lever overnight works great for the brake master cylinders, also. The next morning, they are nice and firm.