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Hull to Deck Joint Leak
A 400 owner sent this repair in which shows the construction of the
deck to hull joint on the 400. This is not a problem common to just
Mainships, but can be found on most any boat. The
pictures here show a good cross sectional view of the rubrail,
and what to do if a leak should develop in your
400.
Following is Chris' repair.
"I found when I removed the forward port quadrant of the
rub rail that there was a gap of about 6 to 10 inches at the deck to hull
flag where the sealant was apparent left out during original construction.
The 4 screws in this area were also loose."
Here is a close up of the gap.
"I resealed this gap with 5200 and
also installed 3 additional screws."
"During this operation I noticed
that the rub rail extrusion formed a channel where water could collect if
the lower side was tight to the hull as is intended and flood the area of
the flagged joint. I drilled 3, 1/4 inch holes in the underside of the rub
rail rubber at low points to allow any accumulation of water to drain and
I also did this to the starboard side as a precaution. I think this has
fixed my leak but will keep a close eye on the
area."
Chris
I especially like what Chris
did to relieve any accumulation of water from the rubrail. I once had a
boat with a similar leaking problem. The rubber railrail would hold and
channel water through the deck joint, which had many gaps in it. Without
removing and resealing the joint, I opened the joint underneath, at the
lowest point on the rubrail to let water out, and this cured all my
leaks.
Steve
Email - srcyr@sbcglobal.net |