Guess I'll find out tonight.
<br /><br />Thanks all. Sounds like it's more than likely gonna be ok when I winterize it tonight. <br /><br />One more small question....Last year I used 'Marvel Mystery Oil" to fog it with since that's all I had at the time. Is that stuff good, or should I go find some "real" fogging oil??
<br /><br />I buy the stuff by the Gallon at NAPA...........
P.S. Bondo isnt NAPA Great$$$$$$
You are simply running the AF out the mans. But I do have a question ferya. Don't know how you did it, but if you drained the block, drained the manifold, and pulled the lower circulating pump hose, all water should be out. Now, if you button up, and you don't get a SIGNIFICANT amount of AF in the motor (should hold a few gallons-V-8's hold over 5-6 or more gallons) before it starts running out the mans, its because the thermostat is closed, and all your doing is pouring AF into the stat housing, and out the man and riser. Some will leak into the block, but very little. You don't say where the boat is (or fresh or salt-this stuff IS IMPORTANT for good answers), but draining and leaving just air in the block will cause zero problems. But if you say you filled the block to the nmanifold, OK. But it should have held a few gallons.
(all with a 21" pitch prop on a 2.3l 4 banger).....<br /><br />As for the original topic, 2 or 3 hrs at 30 degrees is hardly enough to make ice in teh freezer let alone in your block!<br /><br />Especially if it's in the garage, youd be suprised (If it's attached to the house) how much warmer it stays in there.Fresh water only ...Boat is parked inside my (non-insulated)garage. I DID NOT just pour AF in on top of the closed thermostat....duh. <br /><br />I drained the block, pulled the bottom hoses off the exhaust manifolds, backed the boat down into a ditch to let all the water drain out of the boat...then I pulled the entire "water neck"(including the thermostat) off the intake and poured the AF directy into the top of the manifold. I poured it in until it overflowed. Then I attempted to get some more AF into it by pouring it into the exhaust manifold hoses. I had never done that before and don't know why I did it this time. Just seemed like the thing to do. The engine(4.3L V6) held about 2 gallons of AF before it overflowed out of the intake manifold.
