Winterizing with Corsa Thru Hull Exhaust

firecadet613

Well-Known Member
May 10, 2007
5,253
Indiana
Boat Info
SOLD - 2007 Four Winns V358
Engines
Twin VP 5.7GXi V-Drive / ZF63s
I hate to even bring this up so early - but kid #3 is due about the time I'd normally winterize (due late October).

The last few trailer boats I had - I winterized myself. Warmed the engines up, changed the oil/filter, drained the block via drains and removing hoses - then refill with the pink stuff.

My new boat has the Corsa Quick/Quiet Thru-Hull exhaust. What all do I need to do to ensure the exhaust is winterized properly? Talking out loud, it seems I almost need to buy the kit and run the motor with the 5 gallons of antifreeze after I drain it - and click on the thru hull exhaust?

I googled it - but couldn't find anything specific to winterizing.
 
How much liquid remains inside those (4"?) exhaust pipes?

Any? Do they self drain?
 

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