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Old 08-27-2012, 12:13 PM   #14
Rusty
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Quote:
Originally Posted by NHBUOY View Post
200 degrees was the temperature of the block. The catalysts are downstream in the exhaust. The cats will get exponentially hotter than the block.
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.
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