this could be BAD

i have a buddy with a 211 with the pcm 330, well come to find out today that last season when the boat was winterized the knock sensor plug was left in. the boat has not been run yet but all the other plugs were out all winter and the boat was stored outside. so what do you guys think is going to be the verdict when its cranked? we live in mississippi so it gets could but to bad.

Did you have below freezing temps for several days in a row? If so, it's probably not going to be good.

Are there any visible signs of a problem? Freeze plug pushed out?

I would run it on land with a fake a lake and check the oil for water.

Let us know how things turn out, hope all is well.

Good Luck,
JT

I bet your fine.

With all the other plugs out there were lots of other places for the water to escape.

Run it, check it and go have some fun!

If you lake test, make sure your bilge pump works before you start it. Most ice cracks will be on the external block.

I would bet you are OK, but wouldn't count on it.

we have had some cold nights but it never stays below freezing here during the day, so hopefully that is going to help him out. but i also dont how common it is to crack a block during the winter

If all the water is drained out, you can put the plugs back in and be ok.

You should be fine.