Luther Gulseth wrote: > Here it is. I cut most of the 15 seconds of glow out.
That's a new one on me. Doesn't seem to be in time with anything going on in the engine. I'd look for something loose being shoved around by engine movement. Exhaust systems, in particular, can cause some really interesting rattles that are frustrating to track down. So can bad air cleaner mounts. Maybe even something flapping around in the breeze from the fan.
