Quote:
Originally Posted by NHBUOY
200 degrees was the temperature of the block. The catalysts are downstream in the exhaust. The cats will get exponentially hotter than the block.
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Understandably Cats need to be hot to convert harmful pollutants into less harmful emissions.
I don't have a boat that is powered by a motor so I'm sort of in the dark about the engine safety features in newer boats. I would think that there would be some sort of warning light or sound that would tell the boat operator that the engine is reaching a dangerous and damaging temperature. To just see smoke coming from the engine compartment after it has already done some damage doesn't seem right.