Opening Port Leaks Resolved

[reedbr]

On my 1997 MkII opening ports I was getting leaks I couldn't stop.  I got the McMaster O-rings and cleaned the port gaskets but still had problems at the same rate.  After talking with a C380 owner who solved a similar problem, I dug out the gasket that fills the gap between the outside aluminum trim ring halves.  The gap is a little over 1/16" and runs horizontally at the 3 and 9 o'clock positions.  The existing gasket was the consistency of plumbers putty.  I dug it out with a razor knife and filled it with silicone.  I had a couple good rains while on the boat last week.  The opening ports are dry.  I think these are the Lewmar ports. 

Next stop, chain plates...

[horsemel]

I had the same problem last year.  Did the O rings and replaced the gasket.  I think those are intended as expansion joints.  I filled mine with silicone as well.  Problem solved.
Mark Mueller