I dunno…..not letting them run a little while before pouring the coals to them bothers me from a strictly mechanical perspective. Even drivers are considered ‘moving parts’. And with any moving part, you need to work them slowly at first. Let them flex a little, then crank them.
When a person buys a new car, the break-in isn’t for the engine, it’s for the drive train (diff’s, tranny, u-joints, trans case). Engines are broke in at the factory before they’re dropped on the motor mounts. The cam is broke in (at least old flat tappet cams), rings are seated and then the oil changed. Common misconception with that one. My race builds are ready to drop in a chassis after it’s off the dyno.
