3 - SPECIFICATIONS
24 90-8M0098854 MARCH 2015
ENGINE OPERATING LIMITATIONS (QC4V)
Maximum wide open throttle (W.O.T.)
RPM..................
6000‑6500 RPM
Rev limit ...............
1.
6520 RPM
Idle RPM in gear............ 650 RPM
Idle RPM out of gear.......... 800 RPM
Maximum fuel system flow rate..... 295‑360 g/kW‑hr
Fuel pressure.............. 4 bar, map referenced
Coolant thermostat is fully open at
temperature..............
85° C (185° F)
Minimum water pressure supplied to the
engine.................
170 kPa (25 psi) at 6500
RPM
Maximum water pressure supplied to the
engine.................
241 kPa (35 psi) at 6500
RPM
Minimum oil pressure @ idle (Hot).... 1 bar (14.5 psi)
Minimum oil pressure at 6500 RPM (Hot) 3 bar (43.5 psi)
Maximum oil temperature at 6500 RPM
(Hot)..................
140° C (284° F)
FUEL REQUIREMENTS
Use a major brand of unleaded gasoline, preferably without alcohol.
Mercury Marine recommends fuels that contain fuel injector cleaner
for added internal cleanliness.
!
WARNING
Fuel leakage is a fire or explosion hazard, which can cause
serious injury or death. Periodically inspect all fuel system
components for leaks, softening, hardening, swelling, or
corrosion, particularly after storage. Any sign of leakage or
deterioration requires replacement before further engine
operation.
NOTICE
The use of improper fuel can cause serious damage to the
engine. Damage resulting from the use of improper fuel is
considered engine misuse and is not covered under the limited
warranty. Use only the recommended fuel in the engine.
OCTANE REQUIREMENTS (OUTSIDE THE U.S./CANADA)
FUEL TYPE MINIMUM POSTED OCTANE
Unleaded regular or premium
1.
(R+M) ÷ 2 = 89 or RON = 95*
NOTE: *Research Octane Number
USING REFORMULATED (OXYGENATED) FUELS (USA ONLY)
This type of fuel is required in certain areas of the U.S. The two
types of oxygenates used in these fuels are alcohol (Ethanol) or
Ether (MTBE or ETBE). If Ethanol is the oxygenate that is used in
the gasoline in your area, refer to the Fuel Containing Alcohol
section.
1. Engines are equipped with an ignition system that has a built‑in 6600 RPM rev limiter. Engine is performing normally if it will not exceed this RPM.
1. Mercury Racing does not recommend using leaded gasoline. Leaded gasoline is acceptable in areas where unleaded gasoline is not available; however, lead particles may build up in the
exhaust passages and/or the combustion chambers.
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