There are 2 independent wiper motors on the Series 1,2 and early 2a Land Rovers, both operated separately. In fact, the passenger side wiper was offered as an optional extra!
When I tested the wiper motors on the bench some time ago, they worked…. at the least the motor made a noise and shaft turned. But once i’d fitted them to the bulkhead, installed the wiper arms and wired everything up…. the wipers wouldn’t “wipe” but the motor still worked. After some faffing, I decided the best plan would be remove them from the vehicle, strip them down and have look what may be wrong inside.
Now to the possible reason why the wiper arms weren’t rotating when the motor was switched on….
So, we’ve learnt grease goes off after a while….. time to put everything back together again.
Don’t forget, there’s two motors. The 2nd one was in a similar state and received the same treatment. Once the new paint on the gear housing has gone off I’ll rebuild everything and fit them back to the vehicle.
The Land Rover workshop manual doesn’t have any commentary for the wiper motor, so it’s with special thanks to the “Wandering Hippo” for the great instructions on stripping the motors down.