Re: AD-12 overheating – new impeller too!!

[johnyrude200]

A few questions to get to the bottom of this issue….

1. What are you using to figure out the motor is overheating?

2. The video is hard to really tell what’s going on. We need some temperature numbers to confirm an overheat. There is clearly water coming out of the exhaust relief hole/blubber hole. The motor should be pumping water like a fire hose; it doesn’t have a thermostat.

3. Running motors in garbage cans leads to A LOT of false positives. If you are going to do this as a hobby with any regularity, and have 12 square feet, get yourself a 275-gallon tote and convert it into a test tank. It makes a huge difference. It is also (depending on how you customize it) reasonably close to the original test tank minimum requirements.

4. What you say "it was getting hot," what are you referring to? The exhaust housing? The water output? The powerhead? Where on the powerhead? Temperature readings, IMHO, should be at the SB cylinder sides (where applicable) and the top of the #1 cylinder (heat generally rises); or at the thermostat cover and thermostat orifice (where applicable).