I have a 1973 Johnson 6hp. I can't seal the thermostat cover on top of the head without it leaking water. I polished both surfaces with glass and emery cloth, used a new gasket, OMC gasket sealing compound (also tried without), and torqued to 85 in-lbs. It is leaking both towards the spark...
I have a Mercruiser 7.4L Bravo Three sterndrive. It's in a 1994 Searay Bowrider and it's never had the impeller replaced. We had an early freeze here in Seattle a few weeks back and I hadn't been able to winterize it. I tried to keep the block warm, and I tried to start it and get antifreeze...
I have a 1973 Johnson 6HP (6R-73S J3729766) which I just got running after two months. It had been used in saltwater previously and while changing the head gasket and impeller I found lots of caked salt and calcium blocking passages. The wet salt looked like it might have been from sitting for...
I bought a 73 Johnson Seahorse 2 cycle 6R-73S, serial J3729766 late last year - my first outboard. It won't start except for an occasional bang and I think the head gasket is blown and I need info on how to change it and how much skills I need. <br /><br />First, here's the diagnosis...
