Scalextric motor pinion gear – 9z

Many of the Scalextric cars produced from the 1970s use a small white gear (pinion gear) on the motor to drive the rear axle.  It is very common for this gear to crack and become loose on the motor.  In extreme cases the gear can beak in two places and fall off the motor shaft completely.

The initial symptoms will be a clicking sound as the car drives along the track.  When the rear wheels are turned manually a tight spot will be felt.  If used like this for long then damage may result in the rear axle gear too.
There’s only one solution and that’s to replace the motor pinion gear with a new one.  The replacement parts have an improved design with a collar around the gear to give increased strength.  Fitting instructions are available for this gear too.

Another solution from Scalextric Car Restorations