with double hose clamps. The hose clamps are not visible in the
picture as they are covered by the heat shield.
Whether it is ICVs, carbon canisters, vent valve, or fuel fill limit
valves, gasoline fuel systems have increased in the complexity. It
is extremely important that anyone inspecting or servicing these
types familiarize themselves with these systems. I am writing this
article on the flight back from the surveyor’s conference when
I was reminded that tampering or disabling smoke detectors in
the lavatory is strictly prohibited and a federal offense. The same
holds true for evaporative emission systems on boats.
EXCEPTIONS
1.
Portions of fuel distribution systems located outside the engine
compartment if a break at any point in this system will result in
the discharge of no more than five ounces (147.9ml) of fuel in 2-1/2
minutes including fuel that may drain from the engine. (See H-24.1
for requirements for fuel distribution and return lines.)
2.
Self-draining fill and vent pipes located in a separate
compartment from the engine compartment.
3.
Fill and vent external fittings.
4.
Clips and straps not essential for anti-siphon protection
required by this standard.
5.
The outboard engine manufacturers supplied manual primer
bulb(s) and hose(s) or equivalent to the engine, if the boat is
not fitted with a gasoline inboard engine or generator set.
6.
Gasoline fuel filters designed and labeled for marine use on
outboard powered boats provided the boat is not fitted with
a gasoline inboard engine or generator set and the filter is
located in a compartment that is open to the atmosphere or
void of ignition sources. (See ABYC E-11, AC & DC Electrical
Systems on Boats)
24.5.7 All individual components of the fuel system, as installed in a boat, shall be
capable of withstanding a 2-1/2 minute exposure to free burning fuel (N-Heptane)
without leakage as required by Title 33 CFR, Section 183.590 and as required for
individual components in H-24. (See H-24 Appendix A)
SEE FIRST HAND HOW ABYC IS TRULY BOATING SAFETY... BUILT IN
OUTBOARD
GASOLINE BOATS
DIESEL BOATS
STERNDRIVE & INBOARD
GASOLINE BOATS
EXCERPT FROM THE H-24
GASOLINE FUEL SYSTEMS (7/12)
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