Mercruiser 165 IL 6 Winterization

BigWeakSauce

Seaman
Joined
Apr 4, 2020
Messages
50
Alright boys and girls, I’m back to annoy the seasoned pros with my noobtacular inquiries.
I’m opting to save $100 and winterize myself for the frigid tundra that is set to befall Cleveland.
I drained both the block and manifold, but didn’t pull the plug from the riser. Wondering as long as I drain the water I won’t need to put antifreeze in, correct? As long as I’m certain any residual water has room to expand when frozen I’ll be OK, I just may experience some corrosion. Is that true? Any input here?
I also drained the gear lube to ensure it had no water and it was surprisingly in good condition as I had replaced several seals and was certain it still would get some water this season. Is it OK to leave the out drive empty or do I need to pump it back up?
Thank you as always.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
50,254
change oil first, then drain
drain the big lower hose

if you want to pour in AF, use a funnel at the thermostat housing

fill the drive back up.
 
Top