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raritan
08-11-2001, 09:15 PM
Decided that the 350 needed a thermostat. The housing is a standard thermostat housing with a tube out of each side which goes to exh manifold. Started the engine.... Temp goes up to thermostat rating, water and steam exit exhaust, temp goes down, water stops going out of exhaust, temp goes up, steam and water come out of exhaust. Is this normal on an open system. The temp variation is at least 49 deg F.

BigGrizzly
08-13-2001, 08:58 PM
You need a bypass in the t-stat or in the pump.