This has probably been asked before, maybe even by me, but if a valve adjustment spec is for a cold engine, can you do it when engine has been turned off for 3 hours and is still slightly warm? Or does it need to sit overnight and be stone cold?
How about head torque? This is for a BMW airhead MC and I know that the perfect scenario is stone cold, but I guess my question is more about the speed of expansion and contraction @ different temps. I'm imagining that things start expanding for real only when they get real hot, (operating temp), and shrink back quickly when that temp is lost, (cool down below metal-stretching temp).
Are these dumb questions? Sorry in advance if so, but this has always bugged me. TIA.
