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    Compatible? Mercruiser 165hp vs 190Hp (3.7l)

    Hi all, as my present engine Mercruiser 3.7l 165hp -87 is knocking, I've plans on buying another one. I have found a 3.7l 190hp I guess from -89. Are they compatible? regarding cooling motormounts and so on?
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    Knocking Mercruiser 3.7 4cyl 165Hp -87

    Hi all, this spring i bougth a bowrider, Century Raven 195BR with a Mercruiser 3.7l, Now I?ve started it for the first time, and there is a distinct knocking, sounds in all gears, the more rpm the more sound There is compression in the engine and it runs fine. I recently changed impeller as I...
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