[Qmulus]

No problem.

For disassembling the pump motor, I squeeze the "ears" that were peened over back up, then use a flat chisel to work the end plate off of the motor housing. Doing it this way you can then peen the ears back down when you are done with another sharp chisel and it looks like no one was even there. If you grind away the ears, you have no material to keep the end plate on.

The actual process of rebuilding these pumps correctly is an involved and messy process. First you disassemble and clean everything (an industrial washer and or ultrasonic cleaner is ideal), then test the armature windings, turn and properly finish the commutator and brushes, replace bearings, reassemble and test for some amount of time (note current and airflow) . There are also some other steps that I consider "proprietary" that I learned from experience on these, but that is basics. This all assumes the motors are in good shape, when in reality about 50% have damaged windings and/or are badly corroded from exhaust gases. I don't bother with those, but they could be repaired. Luckily the orientation of the pumps in the Porsches (horiontal) is more favorable to these pumps than the vertical orientation used in other cars as the carbon from the brushes is not as likely to settle on the bearings. A brushless motor in this application would be ideal.

Anyway, glad to hear that you found your issue.