Alex
Nordschleife
- Joined
- 6 Mar 2014
- Messages
- 22,188
Recently I've had my wipers playing up. They won't operate on intermittent or on low speed unless I put them on high speed then drop them down to low. I was convinced it wasn't the stalk unit as wiggling it around and calling it naughty names made no difference. Yesterday I had a big trasv job ont' miller so it gave me a couple of hours to mess with the car. Quick check on the intermittent timer pot on the dash with a multi-meter proved it wasn't the stalk at fault as the pot would see 12v everytime the stalk was operated on intermittent. My gut feel was the motor as this is semi subjected to the elements as it sits in the bulkhead that isn't sealed.
Quick strip down of the scuttle and wipers gave me access to the motor so I removed it, plugged it back in and tried operating the motor. Quick tap on the side and it would kick in to action. Next stage was to strip the motor down and have a nosey inside. The motor comes apart with 2 cap head torx bolts (kept the top worm assembly intact as this mooked like a box of springs waiting to explode).
Once opened up it was obvious what the problem was - the whole of the insde looked like something from the control room at reactor 1 in Chernobyl!!
There's 2 sets of brushes - 1 for low speed and 1 for high speed. The low speed onces were in a bad state. Rest of the motor didn't look too clever either. Good clean up with some fine emery and all back together and the motor is now operating on both speeds with wipers as smooth as silk.
Didn't take any snaps as I'm in a sh***y mood at present but the inside looked something like this:
Quick strip down of the scuttle and wipers gave me access to the motor so I removed it, plugged it back in and tried operating the motor. Quick tap on the side and it would kick in to action. Next stage was to strip the motor down and have a nosey inside. The motor comes apart with 2 cap head torx bolts (kept the top worm assembly intact as this mooked like a box of springs waiting to explode).
Once opened up it was obvious what the problem was - the whole of the insde looked like something from the control room at reactor 1 in Chernobyl!!
There's 2 sets of brushes - 1 for low speed and 1 for high speed. The low speed onces were in a bad state. Rest of the motor didn't look too clever either. Good clean up with some fine emery and all back together and the motor is now operating on both speeds with wipers as smooth as silk.
Didn't take any snaps as I'm in a sh***y mood at present but the inside looked something like this:
