Hello All
So i spent about 3 hours cleaning it up.
removed all internal parts and used crocus and a buffer on the sides of the moving parts. didnt mess with the sear or the engagement parts as i dont know enough about it.
even sanded (600 grit) the little stubs the trigger and other parts ride on to pivot.
some oil and re-assembly. first time i done that before but its pretty straight forward.
mechanically the gun is tight and now the barell is looking good. had some lead that came out easily.
thanks for all the info
regards
Mike