thankyou Gord, I made a contact, and got a response. Gent speaks of an air heater plug, goes into intake manifold. There is no schematic that shows location, but it must go where air intake is located.What are your thoughts? Have you ever heard of an air heater? I have to climb up into ship engine
room to have a look and see if there is required adaptor on intake, where little element screws into. will keep you posted.