Today I purchased an MTH Railking 30-73432 Smoking tank car and when I got it home and put it on the track I realized immediately something wasn't right. I took the car apart to investigate because I could tell it was getting excessively hot on the top side of the tank car. Now there is a smokestack not seen in the picture that came with the item and leads to the top of the tank car hatch, but upon looking down that stack, when I initially put it on the track, I could see the element down the stack was getting red hot. And I mean RED HOT! When I took the tank car apart and put voltage to the track in the video is what I saw. Now it is my guess that removing the stack allowed for increased air to pass through the element causing what you see in the video, however it should never get to this point. Definitely a defect somewhere and definitely Something to consider if you purchased an MTH Railking smoking tank car. Before you watch the video here's some pre-vid information.
I am using the included MTH smoke fluid
21 volts to the track from the Z4000
Disassembled and lying loose on the chassis which is why you hear the excessive fan vibration. Unit did not sound like that when in the car.
MTH # 30-73432