D&LBusch wrote:

I have a Donzi Regazza with a 5.7 Mercruiser. I live in the Northeast and
the boat will be shrinkwrapped outside. I'm debating two things. Should I
leave the tank (Metal) full with gas and add stabil or should it be empty?
Also should I drain the engine from coolant (raw water cooled) or run the
"pink stuff" through it until it comes out? Thanks in advance. David



Opinions differ on leaving the tank full or not. I chose full with some
sorta stablient. Our boat has a 5.7 efi merc engine (2001).

As far as the block I drained there are five drain cocks on it. They are
blue in color. They are located near the center of the block. The
outside ones are easly visiable. The other two are just inside and under
a little further. It is easiser to feel them then to see them. The fifth
is located under the left side of the engine under the water pump.

After they are drained and replaced you will see four hoses connecting
to the front of the block. I then disconnect the front right hose and
fill the block with antifreese. It took a little over a gallon and I
could see it running out the drive leg. You can also here it filling un
in the block as you pour it in. It only took about 15 minutes to do.

I was going to use the muffs method. But the local marina teck suggest
this as a better way. He pointed out that just using the muffs. The
engine needs to be warned up to open the Thermostat. And even then it
opens just a little bit. Not allowing a whole lot of antifreeze in.

Capt Jack R..