We used to call the "cold stick" a cold seizure. Same thing. I always warned my students flying two stroke powered ultralight airplanes never to make a long unpowered decent followed by an application of full power. That was almost guaranteed to cause a cold seizure as described by TOM. Of course applying a lot of power to any cold engine could cause the same thing, but hopefully we all know to avoid that. Low powered descents can also cause shock cooling problems with four stroke aviation engines.

We also used to have this happen with hot rod full size boats without an onboard contained cooling system if they went under a high power setting into a cold water area. The block would cool down and shrink, while the pistons were still hot from the load. The resulting noises and then silence were very expensive...

AV8TOR