John,
My ejector problem was that the ejector stop plate located in the barrel extension was missing.The ejector rods would slide right turough and fall out of the gun when breech was open.The small set screw was also broken off.
I had Larry DelGrego replace the screw and solder in a new plate .
He mentioned that this was a common problem with these old Parkers but easily fixed.
I will have gun next week and am sure DelGrego will have it right.
Bill