If spraying water down the carb is bad then why are people installing water injection. I am not talking about dumping a gallon of water down the carb of a hot engine. I am applying a controlled spray of water in more of a heavy mist.
I agree that a cold liguid suddenly applied to a hot metal part like a ring could crack it. Theoretically the water becomes steam as it enters the combustion chamber so it is never really a cold liquid.
4jaw Thanks for the history of the battery on the concrete. I always wonder where these things come from. I remember jar batteries but didn't know they used glass batteries in cars.