Thread: Reusing Auto Engines.

Originally Posted by ONYVA

how is it cooled? if no heat exchanger I would stay away from alloy if used in salt water.

The current engine is raw water cooled. That with the fact it is about 45 years old and hard to get parts for makes me keen to do a swap. The replacement set up will have a heat exchanger added so that fresh water will continue to be used in the engine. Word is, from a US marine engine site, that it is not a good idea to add a heat exchanger to the old engine as the fresh water with anti freeze/boil will tend to find where the engine is corroded and eat out what is left.