'53 wiper heats up even if not used

[James Davies]

No madness here.

Aki, yeah, the SWF motor is electrically-switched, and gets wired up as in your schematic. This is unique to the 1953 model year. 1952 use the Bosch (electrically-switched) and the 1954 models use the SWF motor that is switched via Bowden cable, as Alan says. So this motor was used ~Oct 1952 through April 1954. This is the only motor used with the opposite-motion gearboxes and linkage on the "Boomerang" SWF wiper system. The gearboxes have shorter arms than the ones used on the parallel-motion SWF systems in 1954-55.