good for you.That was a cheap fix and you have a great running motor on your hands.
If you did not get an owners manual with it, be sure to download one from http://www.operatorsguides.brp.com/
The gearcase has 2 small holes on each side underneath the anti-ventilation plate. They have to be temporarily taped up if you use a hose flusher on the gearcase while running the motor. If the holes are left open, they can suck air and cause the water pump impeller to run dry and damage the blades on it, just like you saw when you took it apart.
"There is never just one thing wrong with a boat";
-- Travis McGee, main character in a book series by John D. McDonald
The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.
The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.