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  1. R

    Mercruiser 3.0 Exhaust Manifold too hot????

    I have a 2003 Searay 176 with a Mercruiser 3.0 . I have been concerned that it is running too hot. While on the lake , i took a temp gun and shot different parts of the motor. I got 170-180 everywhere except for the exhaust manifold. It was 200-205 up front and 195-200 near the back. Should i...
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