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I just replaced the head gasket on my 4.3. Thundervolt 4. Ran great before the head gasket. I put the engine back in the boat and started it up. Runs great at idle but when I start to add power it starts to break up and runs bad after about 1800 rpm's. This was done in the driveway and not...
I just inherited a 96 20' Crownline with a Mercruiser 4.3 LX 6 cylinder. It's in rough shape. Can someone tell me what the wiring should be for the electric fuel pump. I'm getting mixed info. Should the pump run all the time or just when it falls below a certain pressure or only when the...
