matt,
escorts should be covered in dust and play in the mud, not be cleaned lol
Low voltage side:
with ignition on you will have 12v at the +ve. With points open you will have 12v at the coil -ve and at the points wire. with points closed the coil -ve and points will be 0v as they are earthed out through the points. If your points are closed and you still have 12v both side, then points are dirty/stuffed and not earthing.
The condensors function is to reduce spark across the points extending point life. disconnect it for fault finding, the car will run without it for the duartion of fault finding without burning points.
High voltage:
When you open points the coil will discharge and produce your spark. Hold your coil lead near (2-3mm gap) to bare metal, usually a bolt head. Turning over the motor or opening and closing points should generate a spark.
more likely if you washed it, the dissy took a gob full of water. Is there moisture on the inside of the cap ??