Re: New EPA regulations to cover all gas engines in 2010, including boats. RIP Carbs
I have seen both the Volvo and Indmar cat converters, I understand the need for emissions to be reduced but what is not being said, is that there will be great costs passed along to boaters who run these in salt water. If you ever have to replace one of those manifolds, the cost I bet would make your head spin. And that's just the cost, because of the safety issue, what happens if you pick up a plastic bag on the lower unit, the impeller gets fried and the engine goes into safe mode...and the weather turns bad...I just don't like the idea of that much heat, even if it's shielded and cooled, in a closed motor box. In cars at least the heat can dissipate because the exhaust is open, even so there have been cases of grass fires started by cars with cats parked over high grass.
In fresh water, where manifolds last much longer, the cost issue may not be noticed so much since most original owners will not have to replace them, but in salt water, it'll be just one more reason to go with an OB, at least until they put cats on them!
About the ole 57 Chevy, well that's why I keep driving my old 98 Jeep with the ancient AMC inline six, one easy engine to work on, can do a plug change in a half an hour if you are slow, oil filter sticks straight out, slide under for an oil change and you don't even have to jack it up. And the solid front axle suspension, wonder of wonders, there are zerk fittings on the ball joints and tie rod ends! Had not seen that in years. They are crude to drive, but easy to fix.