i know that once a rotary over heats it done. here is what happen i had my radiator cap fail on me and wasnt holding pressure so it filled the entire containce of my radiator into my overflow tank. not fun! i noticed it right before my needle got to the red but it was up there. so did i kill my engine? i will be doing a compression test today but didnt know if over heating did anything else to the engine.

 

it depends, it could do alot of things, just get a new cap and start it up.

 

It runs, i turned it off before it got to bad. Im driving it today.