Winterization Flushing Adapter??

rapa123

Petty Officer 3rd Class
Joined
Jun 20, 2006
Messages
77
8)Hi Everyone,
Well I'm about to winterize my 2006 244 Funship Volvo Penta 5.7 GXI Dual Prop. Upon reading my manual, I discovered that there is a flushing adapter (looks similar to a dip stick tube) that you thread a garden hose onto. This is located on the starboard side of the engine. I'm assuming that this is used instead of a flushing muff commonly used on a stern drive. My questions are;
1) Have you ever used this flushing method on yours instead of muffs? If so, what do you think of this method?
2) The cooling system on this engine "is not" an enclosed type, meaning that it's a fresh water intake only system. Therefore antifreeze is not used. I have located all drain plugs on the engine in which the manual states to drain off along with removing the hoses off of the water pump.
My questions in this area are;
1)Upon draining the engine do you retighten the drain plugs and reinstall the hoses and add antifreeze to the engine? I may be wrong, but the way I understand it, is that all you need to do is drain the water from the engine.
2)The boat is kept in my un-heated pole building, therefore I'm thinking of leaving the drain plugs/hoses off through the winter. What would you suggest?
Everything else is pretty straight forward for winterizing.
8)Your input & suggestions would be most appreciated! Thanks, Ray
 

Isle of Fun

Cadet
Joined
Sep 21, 2006
Messages
13
Re: Winterization Flushing Adapter??

While I don't have the flushing adaptor on my 5.7L I've seen the picture in the manual. Looks like it goes down to the lower part of the engine, possibly the water pump?
I just ordered a set of muffs and winterizing kit from West Marine. It's really just a 5 gallon jug that holds the all the antifreeze. I'll attach a hose to the muffs and let the engine warm up to open the thermostat. This will also give the fuel stabilizer time to run through the fuel system. I'll then switch to the antifreeze tank and shut the engine off when nothing but antifreeze is coming out of the exhaust. I've been told that removing the upper plugs at this point would be a good extra precaution, I'm not sure if I will go that far though. It makes sense to me that one reason for the antifreeze is to prevent corrosion by displacing any oxygen, so why intentionally let air in?
To partly answer your question, just pulling the plugs may not guarantee all the water is drained. By running antifreeze through and then pulling the plugs, anything left in would not be just straight water.
Any one else?
 

rckrzy1

Cadet
Joined
Jul 23, 2006
Messages
12
Re: Winterization Flushing Adapter??

Isle said:
It makes sense to me that one reason for the antifreeze is to prevent corrosion by displacing any oxygen, so why intentionally let air in?
Any one else?

There is NO rust inhibitors in the rv/safe antifreeze.
 
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