Help me sleep at night.

I winterized my 2008 Supra 22v boat about a month ago with the following process. First added fuel stabilizer and ran the boat to 165 degress. Shut the engine down and hooked up 5 gallons of antifreeze to the quick flush adapter in the boat. Ran boat again until all the antifreeze was gone. Unhooked the water heater line frome the manifold and blew all the water through the system. I used the green antifreeze and used of 50/50 solution with water. It was difficult to see if this was coming out of the exaust or not.

I went back down to the lake this past weekend and decided for piece of mind to drain the engine block. I pulled two drain plugs that also were hooked up to the nock sensors. In addition, I unhooked a quick connection that went to the manifolds. Plenty of fluid came out of the engine drain plugs but nothing came out of the manifolds.

Should I have any concerns at this point?

Heath

you are fine. The link between the manifolds is also where your dripless packing gets it's lubrication. More than likely any fluid or antifreeze that was in the manifolds drained out at your prop shaft. Just remember to remove your impeller and disconnect the "j" jose also.

Why remove the impellor?

heater core?

"Should I have any concerns at this point?"

Yes, poisoning of your family and pets, fish and other marine life, and an EPA fine, which you deserve, of hopefully 100K

Thanks for polluting the lake and ground water with the Ethylene based green antifreeze. Next time, leave it to a professional that will use the proper Marine/RV antifreeze.

the impeller can dry rot if not removed and lubed with vaseline.

^^^ Petroleum jelly, as in Vaseline, will do far more damage to the rubber impeller then sitting in the housing over the winter. Need to use 100% silicone lube, also called Dielectric grease as a petroleum based lube will deteriorate and soften/swell a rubber that is not intended for it. Dielectric grease can be found in the tune-up or brake isle at most any local auto parts store.

I'm sure a silicone lube will work just fine but I'll stick to what my indmar manual says.

PLEASE don't use automobile antifreeze. Those products are not safe for our water ways. Use only a Marine/RV antifreeze like this:

http://www.peakantifreeze.com/rvmarine.htm

Tige Mike,

Let me clarify that the product was purchased at my local marine facility and I believe was environmentally safe. It was just green instead of pink and could be dilutted versus the pink not being capable. It was not the an automotive antifreeze product.

Heath

Guys, I'm pretty sure he wanted to know if he had properly WINTERIZED his boat...

Is this TalkPETA.com or wakeworld???

Heath,

I hope so, but it sounds like what they sold you was a low-silicate antifreeze/coolant used in many marine closed-cooling systems. This would be the first green RV/Marine antifreeze I've ever seen, fluids are not colored by accident. Many are advertised as 'Environmentally Friendly' but it does not mean it's safe to dump into the lake.

Nacho,
Sorry you dont agree, but using the wrong product is not winterizing properly, and should be pointed out $.02

No worries. Pry just a Monday. Just seems like this site used to be about riding and helping each other figure out stuff like this. Not EPA anti-freeze or rubber-eating petroleum jelly. good info, nonetheless.

Heath,
if you're manifolds are empty, they're empty! No worries there. But, If you have a ballast system, I'd get some antifreeze into the pumps and bags.

Stay sane folks, several long months ahead of us.

Bump start the motor for a few seconds. I always get a little more water out of the mufflers..... which you don't want to freeze either.

And disconnect your batteries (or disable if you have a switch installed).

(Message edited by bill_airjunky on November 17, 2008)

There is a bluegreen non toxic anti freeze.I think it has a lower burst temp like -100F.

ethylene glycol vs propylene glycol (the pink stuff) are the differences in antifreeze you are referring to.