Hey Lou
just wanted to send you a big ole "THANK YOU" for all of the advice you've given me this season, plus how to winterize. We are suppose to hit about 29F tonight and again Saturday night. So, yesterday, I started the winterizing process, after cleaning the boat, I removed the 3 small drain screws from the outdrive, and lowered the outdrive to let drain. surprisingly not much came out of these holes, just a couple drips. I probed them with s stiff wire too, but I haven't used the boat in about a month, so the outdrive hasn't seen much water.
I then removed the small diameter raw water intake hose at the water pump, and held it low, again a couple drips of water came out, but not much in the raw water in it really. Same with the larger hose under neath it that goes from water pump to block. Then lastly I did the two brass petcocks, the one on the block and other on the manifold. Opened block petcock and water came streaming out, lots of water. I then unscrewed the manifold petcock, and NOTHING came out! hmm.......so I followed your advice LOU, and I took a smaller screw driver that would fit up in each one, and sure enough the petcock on the manifold was clogged up with some debris and crud. I loosened it up and water came flowing out. YEAH! again, lots of water out of both petcocks. I stuck the little screwdriver in a couple more times in each hole, just to be sure they were completely drained. They are!
Now, I went out to purchase antifreeze, BUT, all I could find was the pink -50F stuff. nobody has the -60 or -100F stuff. Will I be OK winterizing my raw water system with the -50 stuff? It's the same stuff I use in my camper that sits "up nort" all winter. Our temps can and DO dip to 5F - 0F every winter, and every once and a while hitting -5F below.
So right now I have ALL the raw water out at least.
I am attaching a photo again of the top view of my engine. Can you point out where I pour antifreeze in again? You can see from the pic, I have the larger hose removed from the water pump outlet, as well as the smaller raw water intake hose, which is currently just laying across the back of the engine at an angle, just so it's out of the way.

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