Hi Tyler, I'm new to the group, and only have a little M12. But, I have a bunch of friends who work in boatbuilding and we've a lot of boats in salt here in Downeast Maine. Dave Scobie is right on about stainless underwater in saltwater. Keel bolts exposed to saltwater with no chance of getting air are going to be failing in time. Now, if wind and waves expose that stainless to air at times, it may be okay and only discolor. We've moored our (now sold) 19' Mariner in saltwater and had zero problems with the lower pintle or gudgeon at all. I did make the mistake of leaving the outboard down for too long and it was plastered with barnacles, but that's another story. Electrical current in the boat or in the water are the big issue that could create problems, from what I have read. I have seen a number of outdrives on power boats corrode quickly at dockage on Lake Winniepisaukee (sp?) where there is electrical dockside hook ups, and that is freshwater. If you are in an area with dockside power, there will likely be some electrical current in the water-- the greater concern might be your iron keel, from what I understand. Burt On Thu, Jul 13, 2017 at 7:28 PM, Tyler Heerwagen via montgomery_boats < montgomery_boats@mailman.xmission.com> wrote:
I have the boat in the water for the summer. Wondering about corrosion to rudder fitting, anything associated with the Keel or centerboard, and anything else that does not occur to me. It's in salt water, I do keep the OB tilted out of the water.What do you recommend? Any specific products or methods?Thanks,Tyler H.SeranitaM17 #232