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EXHAUST SYSTEM
Minimum Exhaust Hose Slope
Model
3.0 MPI
If the exhaust elbow height or exhaust angle is insufficient, modify the exhaust system or install
the appropriate exhaust riser. Refer to the appropriate Mercury Precision Parts and Accessory
Guide for part numbers.
Boat Requirements
IMPORTANT: Consider the following requirements before performing the exhaust elbow waterline
height measurement. No prototype hulls or light layup hulls should be considered. Any
measurement performed on non‑production boats, prototype hulls, or light layup hulls could be
inaccurate and could result in product damage.
•
All boats that display a CE certification capacity plate must use the maximum capacity as
stated on the CE certification capacity plate to perform the exhaust elbow waterline
measurement.
•
All boats that only display the US Coast Guard (USCG) capacity plate must use the
maximum capacity as stated on the USCG capacity plate to perform the exhaust elbow
waterline measurement.
•
For boats that do not have a capacity plate, the maximum capacity load is the number of
persons that can sit on designated seating plus cargo excluding cabin space.
•
Measurements used for official Mercury MerCruiser audit at the OEM boat builder must be
performed on current production boats. No prototype hulls or light layup hulls will be
considered for official audit purposes.
•
Measurements used for official Mercury MerCruiser audit at OEM boat builders must use the
CE certification maximum load for any boat model that will be sold outside of the United States.
Loading Requirements
1. Fill the fuel tanks, fresh water tanks or holding tanks, ballast tanks, and heater tanks to simulate
fully loaded condition.
2. Weights can be used to simulate these load conditions if desired. Place weights in the
corresponding area for which the load is being replaced. Refer to the following conversions.
•
•
•
•
3. For the purpose of MerCruiser waterline height measurements:
•
•
4. Add weight for any additional boat options: extra battery, battery charger, tower, arch,
generator, ballast tanks, ballast sacks, television, carpet, anchor, stereo/entertainment
equipment, washer/dryer, safe, etc.
5. If a swim platform is an option, the swim platform must be installed for the waterline height
measurement. Use the following guide to determine the correct swim platform load:
a.
b.
c.
Page 4 / 12
Within 45.7 cm (18 in.) of engine Remainder of system (if applicable)
10°
1 U.S. gallon of water = 8.3 lb.
1 liter of water = 1 kg
1 U.S. gallon of gasoline = 6 lb.
1 liter of gasoline = 0.72 kg
One person is equivalent to 74.84 kg (165 lb.)
Cargo per person is equivalent to 11.34 kg (25 lb.)
Boats less than 8.84 m (29 ft.) long, not including boats that are 8.84 m (29 ft.) long,
must add the maximum rated swim platform weight capacity to the swim platform.
Boats less than 8.84 m (29 ft.) long, not including boats that are 8.84 m (29 ft.) long that
do not have a maximum rated swim platform weight capacity, must add181.45 Kg
(400 lb.) to the swim platform .
Boats 8.84 m (29 ft.) long and greater than 8.84 m (29 ft.) long, must add the maximum
rated swim platform weight capacity to the swim platform.
Specification
3°
SECTION - 3
90-899883183 DECEMBER 2007
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