W126 Repairing the blower motor.
These are the steps I followed:
- Took the blower out (easy on a W126)
- Removed the plastic holder (one screw and some force)
- Moved the springs of the brushes out of the way and pulled the brushes outwards.
- Supported the cage and whacked the shaft with a hammer until it came off.
- The motor was very dirty and hard to turn.
- The shaft was struck to the top bearing (bearing was turning inside its cage instead of the shaft turning inside the bearing).
- Wit a small chisel took the top bearing bracket off.
- The top bearing was badly worn on the outside by the spring, allowing radial play.
- Turned the bearing (topside to the bottom) solved the radial play.
- Cleaned all the parts and soaked the bearing in oil for 12 hours.
- Reassabled.
Rob