greetings Bones! " Has anyone installed a small access hole/port into the liner on their 17 to view/ pump water that has somehow found its way into that area? It seems by tapping that the aft portion of the M17 keel is hollow. I would like to check my M17 to see if there is indeed water trapped below the liner."
Bones
I have done the exact procedure you are asking about, and it has given me absolute confidence that my M17 will survive the Minnesota winters. follow this link for full info... http://msog.org/how-to/centerboard/cbrepair_johnson.cfm While winterizing, I was able to inspect the keel sump in my boat to check for any water penetration. In the past my boat has leaked for the keel/trunk joint as well as the bottom gudgeon. Both leaks deposited into this normally inaccessible keel area. A section of garden hose duct taped to a shop vac can suck out any water, and I added 50% antifreeze solution for antifreeze as well as corrosion protection. The easiest way to gain this function is to drill a hole along the trunk that matches a plumbers' plug to seal it during normal use. I'll gladly help with any specifics if I am able. good luck, Martin Duluth, MN Sunflower, M17 1976 #218