Anybody here ever work on any 4 cyl Renault powered I/O's? I think it was a Mercruiser since it was black. I saw it back in the mid 90's. It was in a bass boat from the early to mid 70's. These motors had an alloy block with separate, removable liners. The cam was very high in the block. They would have come in R12 cars in the states. I used to auto cross a tricked out LeCar and got to know Renault's pretty well.<br /><br />Did these motors hold up in the hi-load marine environment ? Just curious.