Pink RV antifreeze to winterize boat

[sh00ter]

Well I decided to do so and drained out the antifreeze I had already put in (non-tox). However, do you re-install your hoses and drain plugs after the block is empty or do you leave them all off for the winter??? I re-installed after it was drained but I suspect because I put AFZ in it, that any residual water is diluted enough not to freeze and therefore re-installing the hoses and drain plugs is fine? How do you do it on your boat? What all hoses do YOU remove and from which end, etc?

Thanks Lakenut

 

[TerryMiller]

I don't know anything about boats except that they are supposed to float. However, for one who coils his RV fresh water hoses and fastens the ends together to prevent insects or whatever from getting in, I'd suggest covering the holes and hoses in some way.

 

[Oklahomabassin]

I have a boat I can use year around. I think it was 23* one morning last year when I unloaded. Floor of boat was getting slick for a little bit from water that dripped off the fish.

 

[dennishoddy]

I have a boat I can use year around. I think it was 23* one morning last year when I unloaded. Floor of boat was getting slick for a little bit from water that dripped off the fish.

Same here. My best crappie fishing is in January and February.
But mine is an outboard. Designed to drain by hangin’ vertical until it quits dripping.

 

[ifishok]

I believe what causes a block to crack in the wintertime is the water jackets around the cylinders are completely full of water, so when it freezes it squeezes the block, since it’s completely drained, it shouldn’t be a problem. As far as the hoses go, I would push them on to their fittings after draining them, but leave the camps loose. For the drain plugs, place them in a bag and wire tie them to the steering wheel so you don’t forget them come springtime.


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[Lakenut]

I usually leave them unhooked. Well, I used to. My boat (direct drive inboard)sits in a very well insulated garage. In the last 15 years the coldest it got was 38°. Now it's fuel stabilizer on the last trip of the fall, prop all compartments open to keep the musty smells away, battery tender plugged in and forget about it till March.

If we ever have a really cold snap and the electricity goes out and I get worried, I could have it drained in less than 30 min.

 

[Shoot Summ]

I drain the block, drop the lower unit to allow it to drain too.

I reconnect all of the hoses except the 2 going from the front of the block to the exhaust risers, and raise the lower unit.

Poor the anti freeze mix in there until it is full, reconnect the hoses.

Same way I've done it for 20 years, boat is stored inside a non-heated building.