Wiper motor - 67 GT round motor

General view of motor with harness connected (all images by Bruce Cunha)

Cover removed harness plug still connected. But in these two pictures what is the yellow wire and where does it go? This looks like the brush pack of the later 2-speed motor which does have three brushes, although the connector plug only has four contacts i.e. one speed. Maybe the single-speed brush pack failed and is no longer available, but the 2-speed fits and the third brush is unused.

Plug and connector cover removed

The three wipers under the connector. But these two pictures show braided wires to the brush pack. The original brush pack? A different motor?

The main gear-wheel showing where the three wipers contact and the breaks and overlaps in the brass segments that control the parking.