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Dies, wait, restarts
This week we were about an hour out on my new to me 1977 Newport 28 w/original Atomic 4 and the engine suddenly dies. No warning, no sputter, it just dies. We attempted restart to no avail and spent the next hour grabbing the small amount of wind we could find to get somewhere.
Just after that hour filled with total frustration of getting nowhere, I tried the motor again and it fired right up. She ran smoothly at lower RPM's so we motored on (no wind) for about 4 hours at 3.5 knots. If I tried to increase the RPMs I occasionally thought that I would hear a miss so I backed it down and kept it low.
While she was running (in fresh water) the temp stayed near 150 the entire time. Ambient temp was 100.
My guess from dealing with cranky old cars is that it is ignition related, specifically coil or condenser due to the sudden nature of the engine stopping, and the restart once it cooled. When it was at higher RPMs, it was more like an intermittent miss than a sputter, so that leads me to think its not fuel. Does that sound right to everyone?
It looks like a tuneup is in order, if heat was a factor, what steps do people take to keep the ignition cool?
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Lake Texoma, TX
1977 Newport 28