MK1 wiper motor

[Phil Nottingham]

mark wrote:
Date: 1/2/2005 5:34 pm EDT

I am restoring a mark 1 p5 rover the problem i am having is the wiper motor keeps overheating ,all the wires are in good condition the switch works fine and the bushes have got lots of life left, the winding is a very clean copper colour and the armture is clean(not burnt) the wiper motor is a single speed type and the wheel boxes and the wiper cable are not seized and well greased up i do have a spare motor but all the parts are worn or burnt out if anybody can help thanks mark

[Phil Nottingham]

Does the motor overheat without any load - the wheel boxes and bundy tubes do have to be completely free although the old single speed motor which was used on P4's and may other cars of the era will go on for years without trouble.. Is it getting full 12v from the switch - try wiring direct to battery, cutting out the reverse park switch but consult wiring diagram first.

Are the motor bearings free. If not, assuming the brushes are OK and with the correct springs, the armature windings may have shorted somewhere