how to winterize a 4.3 liter Merc w/ Alpha One

billybanker

New Member
Oct 3, 2010
1
Huntington, WV
Boat Info
2003 SeaRay 182 Bow Rider
Engines
190HP 4.3 Liter Mercruiser w/Alpha One Drive
I purchased a 2003 SeaRay 182 this summer and now its time to winterize it. I would like to do the job myself, however, :smt100 I need some guidance and/or suggestions as to what to do.
 
I would run engine on muffs till warmed up, makes the oil drain faster, especially if you have the little drain hose you pull out of the hull drain. Drain Oil, remove and replace oil filter and fuel filter, refill oil with proper amount. Start and run for fogging if you are going to fog engine. Recheck oil level, remove 5 plugs to drain water, 1 each manifold, 1 each side of the block, 1 in the front in the big water hose from the pump on engine. At this point either leave block dry or remove thermostat and fill with antifreeze mixture. Drain and fill outdrive oil, including the oil monitor bottle in the engine compartment. There is a small pump you can buy that screws on the oil bottle to fill the outdrive from the bottom until it runs out of the hole at the top, install top plug, remove oil pump from bottom hole of drive and install bottom plug, fill oil monitor bottle to proper level. When you run in the spring recheck all fluid levels and top off if needed.
 

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