Is this a normal sound for a Backmann diesel circa 1988? This is the one I gave my grandson and I don't remember it sounding like that. From what I can find on the web the sound is because it was a cheaply made Bachmann with a pan motor. Never could find out what might be causing the noise. The conciseness/advice others gave was to throw the engine away and buy a new one.
[video=youtube_share;yygIh_xhqXI]https://youtu.be/yygIh_xhqXI[/video]
[video=youtube_share;yygIh_xhqXI]https://youtu.be/yygIh_xhqXI[/video]