Winterizing 2003 SAN EX330 photos

[wantsurf319]

That's perfect, thank you! Haven't explored much on this engine or else I'd hope I saw those bright yellow letters.... thank you.. so just drain and that would do? How often you guys recommend changing it?


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[t.franscioni]

If you don't know when filters or anything was last changed because it sounds like you just bought the boat. Then I'd change the fuel
filter and do some general maintenance for peace of mind.

[wantsurf319]

If you don't know when filters or anything was last changed because it sounds like you just bought the boat. Then I'd change the fuel
filter and do some general maintenance for peace of mind.

Thats what i was thinking, just didn't know if it was one of those things that can go so many hours without replacing... on a different note I was just reading over your restoration thread, and man that looked freaking amazing! Now I'm just glad I have the same boat as you, and I get to learn from everything you did. Thanks so much for posting it.

[keithh2oskier]

A question was posed about what to do in a climate that doesn't freeze. We have never drained the water from the block on our inboard boats and I didn't do it last year. I really don't want to suck up RV antifreeze but I feel keeping it dry would be a bigger risk.

But that water looked gross coming out of the exhaust.

[t.franscioni]

Agreed climate dependant for sure where I live with my old boats I have never drained the block or winterized and never had an issue because it just doesn't freeze along the coast of CA where I live. With my nautique now though I do plan on winterizing not because of fear of freezing but just because after tearing apart my motor Iv seen how all the rust and everything builds up in the water jackets and it would just bug me going forward... Water and iron equals rust

[wantsurf319]

Agreed climate dependant for sure where I live with my old boats I have never drained the block or winterized and never had an issue because it just doesn't freeze along the coast of CA where I live. With my nautique now though I do plan on winterizing not because of fear of freezing but just because after tearing apart my motor Iv seen how all the rust and everything builds up in the water jackets and it would just bug me going forward... Water and iron equals rust

Do you plan on running antifreeze through it or just draining the block, manifolds and vdrive?

[t.franscioni]

Just draining everything for me in an attempt to keep the Internal corrosion to a minimum over winter. Probably do other things like run fuel stabilizer through the motor on my last run of the summer and fogging the cylinders afterward. I plan on keeping my boat for an eternity now with the money Iv invested in it so I need to keep it happy in the off season.

[wantsurf319]

That's all I ever did before with my previous boat (95 sport nautique direct drive), it was carbureted so I would just fog the carburetor but never fogged the cylinders. I know some people run antifreeze through them, but i never did. Especially in our area where we hardly drop to freezing temperatures in winter. Its my first time owning a Vdrive, so I guess draining vdrive and fogging cylinders would be the only difference now on.

[goldfisch]

Great info guys. Is the v drive plug on upper port side of the v drive? This is my first v drive by the way mine is a 2001 Sante with Gt 40 I have done everything but drain the v drive and fill with antifreeze

[t.franscioni]

I believe so yes.

[j-rob]

Is filling with antifreeze absolutely necessary?
Put a better way, What purpose doe it serve?
I will be leaving my boat for 6 weeks, and really just draining the water as a precaution, as it has been known to freeze in Houston on occasion.
Thanks

[Quinner]

Technically drain only should be fine. A/F backfill will serve a couple purposes, if using real A/F or the -75deg pink stuff it provides some corrosion protection. The other benefit is in the event not all the water drained for whatever reason, backfilling should intermix with any residual water and protect it from freezing, benefit being peace of mind.

[HutchCanada]

Would winterizing a PCM EX345 be any different?

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[Quinner]

Assuming raw water cooling, should be the same however the 343 may have (2) knock sensors, 1 on each side of block.

[03SANTE]

If you pour 4 gallons of antifreeze through that hose it will dump onto the ground. I attached a long hose to that barbed fitting on the strainer and ran the other end into a bucket of antifreeze.

Late to the game but AF down the black hose in hand is correct, it will suck it right down. And yes if you hook it up to the barb coming out of the strainer it may not hit the the driveway but there will be no draw from the raw water pump.