Hi I'm new here, so I hope I am posting this in the right area. I bought a 1988 23' sea ray weekender with a 7.4 liter mercruiser 454. I started it up, it seemed fine until I took it out and it over heated and didn't get up to speed. I don't have much experience with inboard motors or motors in general but I have been doing research and have already checked and replaced my sea water pump ( made sure the impeller veins were going in the right direction). Made sure all the hoses are clear and oil cooler. Took the exchanger out had it acid dipped and leak tested.
That's it any advice will be appreciated.
That's it any advice will be appreciated.