Winterizing

Question
I have a 1994 Cobalt boat with a 5.7 Vovlo engine and I need to winterize it.  I am very good with minor mechanic issues and know I can do this but need a "checklist" in order to make sure I do the right thing.  I know others that do their own winterizing and would like to do my own.  Can you provide me with a list of items to make sure I follow? Thanks!  Ron

Answer
Hi Ron...thank you for selecting the undersigned to respond to your question.

First of all, I'm not a mechanic, so any info provided herein is strictly from hearsay or personal experience.

Drain and replace the crank case oil. If milky, be wary of a water leak via a fractured water journal, or a deteriorated oil pan gasket. Drain and flush water from engine and cooling system, and replace with anti-freeze. Drain exhaust manifolds and introduce anti-freeze. Remove flame arrestor, and fog carb while engine running to coat cylinders with protective chemical of choice to prevent rust/corrosion. Check all types of connections to ensure they are secure, such as fuel line, hoses, etc. Fill fuel tank to avoid build-up of condensation during winter storage and introduce an octane additive to keep fuel active. Clean bilge thoroughly. Place cheese cloth over air intake and air exhaust vents to deterr squirrels and spiders from nesting, and clean out air vent to fuel tank using a tiny brush.

Next, drain and replace oil in lower unit of outdrive. If milky, check source for water leakage and effect repair. Check power tilt/trim system for leakage of hydraulic fluid, bent pistons, or any other damage, etc. Check condition of exterior speedo sending unit and repair if necessary. Sometimes the hose deteriorates and requires replacement or the little wheel jams. While underneath the boat, check the fresh water intake for any obstructions like plastic, or twigs, or whatever. Aslo check in intermediate housing bellows for damage or deterioration. Closely check prop for damage and repair as necessary. Also check prop shaft for fishing line and the like and remove. Always engage drive system in either forward or reverse, don't leave in neutral. Wind can spin prop which causes wear on bearings.

Finally, remove and clean all curtains and upholstered cushions for inside storage to avoid mildew and mould, and damage by squirels. Thoroughly clean interior. Drain and flush any fresh water systems with faucets, including toilets and introduce anti-freeze through system and holding tank. Do likewise to raw water/waste holding tank.

In the event you cover your boat, make certain there's a reasonable degree of air flow or ventillation and that any shrink-wrap process is not air tight, otherwise, you'll have a pretty smelly boat in the spring.

That's a fair list of to do's, but use commonsense and sound judgement.

Safe Boating
Ron