INDUSTRY LEADER IN 10-MICRON TECHNOLOGY
Increased levels of engine sophistication, coupled with
ethanol fuel blends, necessitate the use of a high quality
fuel filter. Sierra filters are engineered to offer the ultimate
in filtration, separation of water from the fuel supply and
provide maximum fuel flow.
Frank Lanier is a SAMS-accredited marine
surveyor. Check out his latest book Jack Tar
and the Baboon Watch.
CREEPING CRUD: Here’s what it looks
like down below if your core gets saturated.
Investigation revealed the coach roof and cabin
side coring showed high moisture readings.
Water likely entered the coring due to caulking
failure and leaking at the mounting hardware
for a sail track, just one more example of why
all deck hardware should be pulled and re-bed-ded (caulked) every five to seven years.
NO ANGEL HALO: “Haloing” of bottom paint is sometimes observed on boats with bonding systems that are in poor condition or are providing overprotection of the bronze components. It’s most prevalent with vessels using black or other dark-colored bottom paint and
is more common with certain brands containing higher amounts of copper. If found on your
boat, inspect your bonding system connections (if you have one) to ensure they are clean,
tight, and corrosion free. Another good idea is to conduct a corrosion survey to ensure
proper galvanic protection is being provided.
PAY ME NOW, OR PAY ME LATER: It’s
later. Here we have a cracked and severely corroded exhaust riser for a small
diesel auxiliary on a 30-foot sailboat. If
it’s this bad on the outside, just imagine
what the inside looks like (that corroded
fuel shut-off valve resting against the
riser isn’t looking too good, either, by the
way). Engine manifolds and exhaust risers
should be periodically removed, pressure
tested, and fully inspected for corrosion
and clogging, as failure here can easily
result in engine damage or even catastrophic failure. This should be considered standard maintenance, particularly
with boats used in saltwater. How often
depends on vessel location and use; however, four years is typically recommended
(more frequently for older risers).