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coolant leak on 470

bevon32

New member
hi i purchased a 1984 wellcraft v20 with a merc 470 and the oil was loaded with coolant. removed the cap and realized the block was bone dry but the overflow was still full. i ran the engine for about 1 min and realized there was coolant leaking out of the water intake. not sure if i have a manifold gasket, head gasket, or heat exchanger problem
 
If you see coolant in the water intake, the raw water and coolant circuit meet in the heat exchanger. This would not however be a path for coolant to mix with the oil. Possibilities for that are head gaskets and intake manifold at t-stat housing.
 
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