November 11, 2010One thing a lot of us have to do is store our boat during the winter months. Here is a quick write up on how to winterize an inboard. (some of this can apply to outboards too)
Supplies you`ll need:
* Screwdrivers and socket set
* Oil and filters
* Gear Lube, plug washers and pump
* Marine safe antifreeze
* Fogging fluid
* Muffs to hook your hose up to the lower unit for cooling while running the engine.
* Oil pan or bucket
Before you start the engine, add fuel stabilizer to the fuel tank. If possible, put in the stabilizer on the last trip of the season and top off the fuel tank before you get home or where the boat will be stored. This will allow the stabilizer to mix completely in the tank. I use seafoam, which removes water in the tank as well stabilizing the gas. Also a full tank will help keep your tank from corroding due to condensation.
Lower the out drive and leave it down for the winter. If the drive is up the exhaust part of the drive behind the prop can fill with water, freeze and crack. It`s also a lot easier on the u-joint bellows to have it in the down position as well.
Hook the muffs to the driveÃ¢â‚¬â„¢s water inlets, turn on hose and start the motor. Let it run till it reaches operating temperature. Now raise the rpmÃ¢â‚¬â„¢s a little and then spray fogging fluid into the carb for 10 secs. Bring it back to idle and spray more fluid into the carb till it dies. Turn off the ignition and disconnect the battery. If you have a water seperator filter don`t forget to change that.
Now would also be a good time to change your oil and filter if you wish but not nessesary.
After the engine is cool drain the water out of the water chambers. Most inboards have an upper and lower water chamber and drain valve. Now fill these chambers with marine safe antifreeze to protect the block. Each chamber will have a hose from the water pump to the chamber. This is where I pour the antifreeze in.
I also recommend changing your gear lube in the lower unit before winter as well. YouÃ¢â‚¬â„¢ll need a lube pump that screws into the unit drain hole. I like the kind that also screw on to the top of the lube bottles, just makes things easier. There are two screws on the lower unit. I recommend opening the bottom one first, this way it prevents the lube gushing out when you unscrew the plug. Now unscrew the top plug and the lube will start to drain out. Once all the old lube is drained screw the pump hose into the lower drain hole. Now fill it with fresh gear lube from the bottom up, this way it forces air out as you fill and you wonÃ¢â‚¬â„¢t have any air pockets in the shaft. Fill until you see lube coming out the top hole. Replace the plug washer with a new one (as these are designed to be used only once) and screw the upper drain plug back on and remove the hose from the lower drain. Some lube will come out but since the top hole is now plugged it wonÃ¢â‚¬â„¢t pour out. Replace the lower drain washer and screw your drain plug back on.
That should do it and your ready for winter.
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