Your Volvo Penta 4.3L engine needs special care and maintenance before storing it for the winter. Lake water is used by the engine to keep it cool when running. The freezing of water can cause the engine block to crack. This water must be removed from the engine prior to storage. The supplies can be purchased at any boat shop and the process can be accomplished yourself.
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Things you need
- Owner's manual
- Fuel stabiliser
- Wrench set
- Outdrive muffs
- Garden hose
- Fogging oil
Look at the fuel gauge on your Volvo's dashboard and determine the amount of fuel is in the fuel tank. Refer to your boat's owners manual for the fuel tank capacity.
Pour the proper amount of fuel stabiliser into the tank. Refer to the label on the bottle for the proper stabiliser-to-fuel ratio.
Connect the outdrive muffs to a garden hose. Place the outdrive muffs onto the outdrive over the vent holes.
Remove the engine compartment cover and locate the spark arrester. It is mounted directly on top of the carburettor. It is a round air filter that is held to the carburettor with one nut. Remove this nut and pull the spark arrester from the carburettor.
Turn the water source on and allow the air bubbles to exit the outdrive muffs from inside the hose.
Start your Volvo Penta's engine and allow it to idle for 15 minutes. This will allow the stabilised fuel to reach the carburettor.
Spray fogging oil into the carburettor until the engine dies out.
Turn off the water supply and remove the outdrive muffs from the engine.
Replace the spark arrester onto the carburettor and tighten the nut with a wrench.
Remove the drain plugs from the bottom side of the engine with a wrench. There are four drain plugs, one at each corner. Refer to your owner's manual for exact drain plug location as each model year is slightly different. Allow the water to run out of the engine before reinstalling the drain plugs and tightening them with a wrench.
Lower the outdrive to the ground to keep the gears inside the outdrive lubricated during storage.
Turn the battery switch to the "off" position. If you do not have a battery switch, remove the negative terminal from the battery with a wrench.
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