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Recent content by Techmanmitch

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    At a complete loss, one riser is very hot and engine wont go over 2000RPM?

    Hi All, At a complete loss, I have a Mercruiser 4.3L MPI 2002 that needed the engine replaced (cracked block) after this replacement the engine will not exceed 2000RPM under load, however will while idleing. Along with this, the one manifold and riser is getting very hot. My starboard side is...
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    2002 4.3L Mercruiser MPI not going over 2000RPM

    Hi all, I recently got a great price on a 2002 boat with a Mercruiser 4.3L MPI. The block however froze so it was replaced with a GM truck block that was the same. After having it all professionally connected, I took it out and it won't get over 2000RPM, it will rev over 2000RPM in neutral...
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