I am in the process of relocating the roof motor into the boot due to the inevitable water corrosion. I have had the motor soaking in diesel and have now cleaned it up with gt85. I have attached a 12v power supply, the motor turned about 2 turns and stopped. I can now get nothing from it, the shaft spins freely so it is not seized. Is this kaput? I'm going to put my multimeter on it and check the commutator, that is when I get a battery for the multimeter, I left it switched on a flattened the battery....doh!