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3.
Remove the lid of the filter to be replaced by turning/loosening the tall brass nut located
at the top of the filter unit. Remove the filter element by holding the molded handles on
the filter element and slowly pulling upward with a twisting motion.
4.
Replace the black lid gasket with a new black lid gasket supplied with the new filter.
Apply a coating of clean fuel or motor oil to this gasket seal prior to reassembly. Insert
the new filter (with labeled end up) with a slow downward twisting motion.
5.
Fill the filter unit with clean diesel fuel by slowly pouring it on top of the filter element.
Clean diesel fuel is located in the “spare parts and filters bin” in the engine room, in a red
gallon jug marked “Diesel Fuel”.
6.
Replace the red O ring on the tall brass nut shaft under the lid with the new red O-ring
provided with the new filter element.
7.
Then put the lid back on the unit and snugly tighten the brass nut by hand- ONLY.
8.
Start the engine and check for leaks. Correct any leaks with the engine off.
9.
Remember to replenish the jug of clean diesel fuel at the earliest opportunity
4. FUEL TRANSFER
At times you may notice the boat is listing slightly to port or starboard. The list may be caused by
an imbalance of fuel in the two tanks. You can verify a fuel imbalance by observing the fuel tank
sight tubes in the engine room. If one tank has a significant difference in fuel level compared to
the other, you can use the fuel transfer system to balance the fuel load. To transfer fuel, you must
first turn on the guarded fuel transfer circuit breaker located at the bottom of the helm breaker
panel. For example, if the starboard tank level is higher, move the top toggle switch on the fuel
transfer panel (near the throttle) to the right and the lower switch to the left. This action will burn
fuel from the right tank and return the excess fuel not required by the engine to the left tank.
Reverse this procedure if the left tank level was higher. To prevent inadvertent venting of fuel
overboard please observe the following guidance.
1.
Do not attempt to transfer fuel unless you can see at least a six-inch difference between
the tank levels.
2.
Check the transfer progress at least every 20 minutes by comparing the fuel tank sight
tubes in the engine room.
3.
Stop the transfer if you can no longer see air in the sight tube of the tank you are
attempting to fill. You may have transferred beyond the sight tube limit and could start
venting fuel overboard!
4.
Terminate the transfer by moving both transfer toggle switches to the center position and
remove power with the guarded fuel transfer circuit breaker. This will prevent
inadvertent transfer of fuel caused by bumping the switch.
Note: You can also attempt to equalize the fuel load using gravity by opening both cross-over
valves at the forward end of each tank. This is the simplest way but will not allow you to to use
the fuel as a means to fine tune any listing that may be present.
WATER
There is a 200-gallon fresh water tank on Mariah. The tank and shutoff are located in the
lazarette.
CHECKING THE WATER LEVEL
Summary of Contents for Mariah
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