How long until a GS overheats?

[the mole]

Yes Jessie, the thread went weird.....and this time with no help from Buddha!

The amount of heat the engine produces is directly related to how much fuel its burning. At idle its not burning much, so there's not much heat to lose. As the air around the engine heats up, it will rise and cooler air will flow in from underneath. Not much flow, but plenty for an idling motor, particularly at 50 degrees F.