Winterize 5.7 mercruiser

Irishhill

Cadet
Joined
May 24, 2016
Messages
17
A few years ago I saw in this forum a diagram with the different hoses highlighted to pour antifreeze in and where to drain. I saved it and referred to it every year to be safe. That computer died and I lost it, would anyone know where to find something similar? I also want to print it out for a friend that's a first time boat owner so he doesn't have to take my word for it.
Thanks
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
47,558
would help us to know what your working on

to winterize
change oil and filter
pull drive for inspection of gimble/u-joints, alignment and to change gear oil

drain both block drains and use a small screw driver or a screw to prod the drains to ensure no blockage, the manifold drains and use a small screw driver or a screw to prod the drains to ensure no blockage, pull the large hose and drain, pull the hose from the transom and PS cooler and drain.

you are now winterized

if you want to add AF, add it to the thermostat housing with a funnel.
 

Irishhill

Cadet
Joined
May 24, 2016
Messages
17
Thanks for the reply and sorry for not getting back sooner, been gone on vacation. I have a Chaparral 2130 SST with 350 magnum
 
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