Too many distractions this week.  I started the week by cleaning and whitening the cab door check strap, to prevent it damaging the paint on the wing by contact when fully open.  I imagine a correctly-fitted wing would allow room for the door to swing.  However, it became clear after fitting that the check strap must never have worked, as it was too long and the cab door was hitting the side of the bus.  Shortening it by 1/2″ made a vast difference and the door now does not reach the wing.  I continued to tinker with the remaining half-drop window that doesn’t quite close.  It now does, but only locks into place on the rearmost end.  Some relieving of the side casting  fixed that.  The new screws to fix the top seal have arrived, so once my few days of illness had passed I was able to fix the final top seal in position.  Attention to the side casting of the window frame with a drill-mounted burr means that all the offside windows now close properly.    The lower side frame fixing screws need attention on the first window still and the rest need to be checked.   So, not much achieved this week.