Marquis 420 Sport Coupe Owner's Manual page 84

P
roPulsion
Fueling
(continued)
5. Turn all battery master disconnect switches to the OFF position.
6. Have all guests and passengers leave the boat.
7. Estimate the amount of fuel you wish to take on.
8. Select the fuel tank you wish to fuel first.
9. Remove the appropriate DIESEL fill deck plate using the cap removal tool
supplied with the boat. The deck plates are located on either side of the transom.
Avoid spilling fuel on the gelcoat and painted surfaces of your boat. Fuel can stain
the gelcoat, paint and any hull accent stripes if applied.
10. Your boat's fuel tanks are designed to take on fuel at a maximum rate of 9 gallons
per minute (GPM) when the tank is between 25% and 75% full. During this time
the pressure inside the tank must not exceed 4 psi. Be aware that many marine
fuel pumps can deliver fuel at rates up to 35 GPM. This high fueling rate should
never be used with your boat as it could damage your fuel system.
When fueling a tank that is either nearly empty or nearly full, decrease the fueling
rate. This helps prevent fuel surge when the tank is empty, and back up and
spillage when the tank is full.
Begin pumping fuel into the fuel tank at a rate of no more that 9 GPM. When the
tank is close to full, slow the fuel rate to less than 9 GPM.
11. Monitor the fuel tank's air vents. The sound of the air exiting the fuel tank vents
during the filling process will change significantly when the tank if full. Stop filling
when this change in sound occurs.
12. Replace the DIESEL fill deck plate.
13. Repeat steps 9 - 12 for the other fuel tank.
14. Wipe up all spilled fuel.
Pre-Start Checklist
1. Read and understand this Owner's Guide and all OEM information.
2. Check both fuel gauges to verify that you have sufficient fuel for your trip.
3. Inspect the engine room:
a. Check fuel system for any signs of leakage.
b. Check the bilge water level.
c. Check for oil in the bilge.
d. Check the crank case oil level in each engine.
e. Make an overall inspection of the engine room to look for signs of potential
f. Follow all maintenance instructions as detailed in Section 7 - Maintenance.
4. Turn the master disconnect switches for both engine battery pairs and the
accessory batteries to the ON position.
10
problems.
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3837 • U3 10/07