Re: I/O freeze damage temp??
Well in NH I would drain the block and manifolds just to be on the safe side, (like in case the power goes out during a cold snap). If you are going to own an IO of any kind, the first thing you should learn is how to drain the cooling system if the weather demands it. You can also disconnect the big hose that goes from the water pump to the thermo housing at the thermo housing, and fill the hose and block with AF. You can then do the same with the manifolds (disconnect the hoses that run from the thermo housing to the manifolds at the thermo housing and back fill with AF). Lastly you can disconnect the hose that comes from the outdrive to the thermo housing at the housing and back fill that one with AF too. Now you don't have to worry and can just leave it until your boating season starts.
