The boat is a 1987 32' SeaRay Pachanga with twin Mercruiser 454 Magnums and Bravo drives. Alright, so was out on dad's boat this past weekend and ran it across the lake at WOT for about 10 minutes, the port side motor's port side exhuast manifold got blue hot. We shut it off as the temp needle spiked. After letting it cool down it bucked against the starter and eventually broke the starter. He just replaced the exhaust elbows on both motors since they were getting thin. We haven't replaced that starter yet so not sure if it will turn over... He replaced the water pumps last year. We are thinking that the gasket at the elbow went bad and let water into the cylinders preventing it from starting and it bucking against the starter. Any thoughts?
Issue #2 is that the other motor starts up just fine but won't rev over 1,800 RPMs even at WOT, or gradually increasing the RPMs. We were thinking dirty carb but it's nice and clean. Removed the fuel pump and that's fine and fully functional. He has been playing with the timing since it was a bit too advanced and so he retarded it back down, but maybe too far. It has a Quadrajet carb. Any thoughts?
Issue #2 is that the other motor starts up just fine but won't rev over 1,800 RPMs even at WOT, or gradually increasing the RPMs. We were thinking dirty carb but it's nice and clean. Removed the fuel pump and that's fine and fully functional. He has been playing with the timing since it was a bit too advanced and so he retarded it back down, but maybe too far. It has a Quadrajet carb. Any thoughts?
