Reply To: Martin 75TS won’t run in “forward”

[hiram1914]

Update: I decided to take another look at the seized lower unit after several hours of soaking It turns out that there was NOT any corrosion that I can find in the lower unit excepting on the large spring between the two driveshafts and it was easily removed. With the pinion removed the ring gear rotated freely and the driveshaft (without the pinion) did, as well. When the unit is reassembled, though, the unit jams and can’t be turned in either direction. The teeth looked good, but I didn’t really study them. Another look is definitely in my future.