0318918 JOHNSON WATER COVER, Cylinder head

Under-the-Hood Inspection
Perform the required daily maintenance and other periodic maintenance before you start the engine. Inspect the engine compartment. This inspection can help prevent major repairs at a later date. Refer to the Operation and Maintenance Manual, "Walk-Around Inspection" topic (Maintenance Section) for more information.
For the maximum service life of the engine, make a thorough inspection before you start the engine. Look for the following items: oil leaks, coolant leaks, loose bolts and trash buildup. Remove trash buildup and arrange for repairs, as needed.
Inspect the cooling system hoses for cracks and for loose clamps.
Inspect the alternator and accessory drive belts for cracks, breaks, and other damage.
Inspect the wiring for loose connections and for worn wires or frayed wires.
Check the fuel supply. Drain water from the water separator (if equipped). Open the fuel supply valve.
All valves in the fuel return line must be open before and during engine operation to help prevent high fuel pressure. High fuel pressure may cause filter housing failure or other damage.
Do not start the engine or do not move any of the controls if there is a "DO NOT OPERATE" warning tag or similar warning tag attached to the start switch or to the controls.
Ensure that the areas around the rotating parts are clear.
All of the guards must be put in place. Check for damaged guards or for missing guards. Repair any damaged guards. Replace damaged guards and/or missing guards.
Disconnect any battery chargers that are not protected against the high current drain that is created when the electric starting motor (if equipped) is engaged. Check electrical cables and check the battery for poor connections and for corrosion.
Reset all of the shutoffs or alarm components.
Check the engine lubrication oil level. Maintain the oil level between the "ADD" mark and the "FULL" mark on the oil level gauge.
Check the coolant level. Observe the coolant level in the coolant recovery tank (if equipped). Maintain the coolant level to the "FULL" mark on the coolant recovery tank.
If the engine is not equipped with a coolant recovery tank maintain the coolant level within 13 mm (0.5 inch) of the bottom of the filler pipe. If the engine is equipped with a sight glass, maintain the coolant level in the sight glass.
Observe the air cleaner service indicator (if equipped). Service the air cleaner when the yellow diaphragm enters the red zone, or when the red piston locks in the visible position.
Ensure that any driven equipment has been disengaged. Remove any electrical loads.Cold Weather Starting
Starting the engine and operation in cold weather is dependent on the type of fuel that is used, the oil viscosity, and other optional starting aids. For more information, refer to the Operation and Maintenance Manual, "Cold Weather Operation" topic (Operation Section).Air Inlet Heater
DO NOT USE ETHER (starting fluids) unless specifically instructed to do so. If the engine is equipped with an Air Inlet Heater (electrically or fuel ignited manifold heater), DO NOT use ether (starting fluids) at any time. The use could result in engine damage and/or personal injury.
Note: There will be an indicator lamp on the dashboard of the vehicle that is marked "AIR INLET HEATER".The engine is equipped with an air inlet heater. This will help reduce white smoke and misfire during start-up in cold weather. The air inlet heater is located at the air inlet elbow.The air inlet heater is designed to operate before the start-up and during the cranking. The air inlet heater will continue to operate after the engine has started. An indicator lamp will turn on for a minimum of two seconds when the ignition switch is turned to the ON or RUN position. At this time, the indicator lamp is functioning as a test light. A malfunction of the air inlet heater circuit is indicated if the indicator lamp fails to operate.The indicator lamp on the instrument panel will turn on when the air inlet heater is functioning. The air inlet heater will remain on in order to preheat the engine, when the ignition switch is turned to the ON and the coolant temperature is below 35 °C (95 °F).The air inlet heater will remain active during engine cranking. The air inlet heater will remain active after the engine starts, until the coolant temperature is above 48 °C (120 °F), or a maximum of seven minutes.Use the following procedure in order to start the engine:
Engage the parking brake. Place the transmission in NEUTRAL. If the vehicle is equipped with a manual transmission, depress the clutch pedal in order to disengage the flywheel clutch. This reduces transmission drag and this prevents movement of the vehicle. Depressing the clutch helps to reduce the battery drain. In cold weather, this can mean the difference between starting the engine and not starting the engine.
Turn the keyswitch to the ON position. The air inlet heater can preheat the system in order to improve cold weather starting. Note: The "AIR INLET HEATER" indicator lamp will flash for a minimum of two seconds regardless of the coolant temperature. If the "AIR INLET HEATER" indicator lamp flashes for more than two seconds, wait until the indicator lamp stops flashing (approximately 30 seconds) before attempting to start the engine. Restarting the engine at this point can cause excessive white smoke.To improve starting below 0 °C (32 °F) ONLY, depress the throttle fully and release the throttle. The throttle is depressed 1/3 of the pedal travel, before the engine is cranked. Hold the throttle in the same position while the engine is cranked.
Do not engage the starting motor when flywheel is turning. Do not start the engine under load.If the engine fails to start within 30 seconds, release the starter switch or button and wait two minutes to allow the starting motor to cool before attempting to start the engine again.
Note: If