Ok I have a new question. I have a 91' mercruiser 4.3 and I had it out this weekend but temp guage wasnt working. Has new thermostat and sending unit, so where should I start to look?
Here goes, I have a 91 4.3 mercruiser. Just replaced pistons and had heads redone. All back together and trying to set timing and carb is popping. I also just found out I need a new coil. Could a bad coil cause the popping and make it difficult to set timing?
I have a 91 Mercruiser 4.3 175hp #OD504322 with I believe an Alpha 1 drive. The motor has a bad piston so motor has to come out. Does the outdrive have to come off also?