I remember when the Mk 3 coupe first appeared, hearing that to avoid the Metro wipers hitting the windscreen surround, the driver's side operating arm had to be lengthened by a small amount, but the Convertible build manual instead refers to very careful alignment of the blades.
I think mine have just been carefully aligned; however, once there's a bit of wear in the linkage, there is going to be enough slop to allow the arms to "overwipe" particularly when the screen is wet, and I'd like to modify the arm to reduce the throw.
Does anyone remember the distance that needs to be added to the arm, or have an original Mk 3 Coupe build manual which references this?