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    switching out engines

    I have taken out a 1975 mercruiser 233 351w and switch it with a mercruiser 225 302 now this is my question on the 233/351w it has a coupler the 225/302 has a velvet drive trans can i use the flywheel/couler from the 351w on the 302 or do I need a different flyweel to make this work. thanks
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    water in oil

    hello got water in oil so we took this motor stripped it down in replaced all the gaskets in the motor did not find any cracks had the heads rebuilt manifolds checked put it all back together ran good for two weeks no water in oil then we changed impeller/water pump then we got water back in the...
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    1975 silverline water in oil

    pick this boat up in 12-10 last year pulled it out of storage started it water was in the oil we striped it down to the block changed all of the gaskets did not find any cracks or corrosion any-where the heads rebuilt manifoldschecked by a machine shop put back it all back in place started it up...
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