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WHAT
TO LOOK FOR IN YOUR MARINE SURVEY
Oil-Canning
- In heavy seas, flexing of the hull up forward causes the topsides
to contact the the vee-berth partial bulkheads. In 2-3 foot seas
you may actually feel the topsides motion if you go below when boat
is beating to windward. Look for hairline cracks/crazing in the
topsides area adjacent to this area, and for ill-closing lockers
in the forward cabin. This is caused by those bulkheads being too
close to the skin.
One
suggestion was to cut those bulkheads away from the skin and tape
them in. While this will not address the oil-canning, it may reduce
hairline cracks at the hard points. Ted Brewer has suggested putting
stringers from the bow to the first bulkhead to solve the oil canning
problem. A plant manager at Command Yachts told an owner that he
had added those main cabin braces to take his D-32 home to England
and back. The story is they caught the tail of a hurricane off Bermuda,
hove to and rode her out while sipping tea. How British! On the
other hand, take into consideration how many years it took for the
damage to become apparent, and you may determine that it is not
a major concern.
Delamination
- The deck is fiberglass over wood core - so look for signs of delamination
around stanchions, deck equipment and the chain pipe.
The
deck around the chain pipe and a few stanchion bases on one D-32
had some advanced delamination. The surveyor's suggested solution
was to use a circular saw w/o mandrill, and cut holes in the underside
of the deck, through the balsa core to the upper layer of fiberglass.
Allow the core to dry, fill the void with injected epoxy, and replace
the plugs. Regardless of the state of your deck, plan to rebed deck
equipment on a routine basis.
Old
Rubber - Check out the diaphragm in the foot operated water
pump, the rubber between the engine and the prop shaft, and all
manual pumps. After several years, rubber can go bad. These are
not major repairs but something to keep in mind.
Deck
Stepped Mast - One owner reported that the deck stepped mast
had shifted off center and was not properly supported by the compression
post.
Fuel
Tanks - A few owners have reported leaks in fuel tanks. Some
models have aluminum tanks, other models have fiberglass tanks that
are integral to the hull. Reported leaks are from both styles.
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