John: It has been a while but if I recall correctly, the original configuration of my '73 36 aft cabin was 440s with FWC. It has been over 20 years since I replaced the engines, so my memory is s little fuzzy. The heat exchanger ran along the port side of each engine, under the exhaust manifold. The antifreeze entered the manifolds from the back end at the bottom of the manifold and circulated out by a fitting at the top of the back end that was connected to an internal tube. Hose ran from the heat exchanger to a T and then to each manifold and then back to the thermostat housing. Salt water entered the risers from the heat exchanger and then out the exhaust. A gasket between the riser and the manifold prevented the salt water from entering the manifold
The units were made by San Juan Engineering which is now out of business. Uniparts may have access to further information. With salt water use, you will need new exhaust manifolds since the existing ones will have passageways that are salt encrusted. I noticed that Sen Dure in Florida makes a heat exchanger for the 440s and I'll bet that if you call them, they can give you specific information on the set up. Gene --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/UnifliteWorld?hl=en -~----------~----~----~----~------~----~------~--~---
