OutdoorKing Repair Forum Forums Restoring, Customising and Modifying Victa Walk-Behind Rotary Mowers Flap 2

Hi to every one, I have a old Victa mustang,my problem is the catcher wont stay clipped on, i attached 2 photos showing the rear flap on the mower ,the flap comes out of its pocket and lets catcher drop off,on 1 photo i have put a spacer nut on shaft to stop the the rear cover sliding along ,what should be there ,where can i see or get a parts view of this flap help please.