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The sediment chamber may be opened for cleaning by removing the cover retaining screw. The chamber and cover should be
washed and wiped dry and the screen dried and then cleaned with a stiff brush. When reinstalling the cover, make certain that the
cork gasket is not broken; reverse it and position it flat on the seat then install the cover and tighten the retaining screw securely.
After cleaning, start the engine and make a careful inspection to guard against leakage.
Lack of gasoline in the carburetor may be caused by the following conditions:
1. Gasoline tank empty.
2. Leaking tubing or connections.
3. Bent or kinked tubing.
4. Clogged fuel lines—(or frozen).
5. Sediment chamber cover on fuel pump loose.
6. Dirty screen.
7.Carburetor inlet valve stuck shut.
Should the carburetor flood (too much gasoline), check the unit to make certain that the needle valve Fig. 14, No. 8, is seating
properly and that the float No. 9 is not stuck.
CAUTION: Do not attempt repairs which require disassembling of the fuel and vacuum pump other than cleaning as special care
is required. It is recommended that all fuel pump trouble be taken up with your WillysOverland Dealer.
FUEL SUPPLY TANK.
The capacity of the fuel tank is 10-1/2 gal. (U.S.) (39.7 liters).
When filling the tank, care should be used that no foreign matter or water enters the tank. Once each season, at a time when the
fuel supply is low in the tank, remove the drain plug in the bottom to drain out sediment and water which may have accumulated.
COOLING SYSTEM.
The practice of checking the condition of the cooling system of your Jeep while lubricating it will guard against costly delays in
service. Inspecting the condition of the radiator and heater hoses; also the fan belt and water pump will eliminate the possibility
of an overheated engine due to a water leak or loose fan belt.
RADIATOR ASSEMBLY.
The radiator is designed to cool the water under all operating conditions however, the core must be kept free from corrosion and
scale and the air passages free of chaff, dust and mud.
At least twice a year flush out the cooling system. A good way to do this is to remove the drain cock at the bottom of the radiator
and that in the cylinder block under the generator. Place a hose in the radiator filler opening and adjust the flow of water to equal
that draining from the two openings. Start the engine and allow it to run until the cooling system is thoroughly flushed. After
flushing it is advisable to install a corrosion inhibitor in the system to prevent the formation of rust and scale. This may be
obtained from your Willys-Overland Dealer.
Should the air passages become clogged, do not use a metal tool of any kind to clean them. Use compressed air or water pressure
and clean from the rear, forcing the dirt out through the front of the radiator.
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