3. Operation Fuel System Air Venting Proc edures • Is the Kingston cock open? Is the inlet of the Kingston cock on the hull bottom clogged? Is the seawater suction hose broken, or does the hose suck in air due to a loose joint? 1. Check the fuel level in the fuel tank. Replenish if insufficient. 2. Loosen the air vent bolt at the top of the oil/water separator by turning it 2 or 3 times. When fuel which does not con- tain air bubbles comes out of the bolt hole, tighten the air vent bolt. 3. Loosen the air vent bolts of the fuel The engine will se ize if it is operated when cooling seawater dischar ge is too s mall or if load is applied without any warming up operation.
filter and the fuel injection pump by turning them 2 or 3 times. 4. Feed fuel with the fuel feed pump by moving the lever on the left side of the feed pump up and down. 5. Allow the fuel containing air bubbles to flow out from the air vent bolt holes. When the fuel coming out no longer contains bubbles, tighten the air vent 3.3.3 Operat io n (1) Engin e Ac ce leration and Deceleration ~ Use the governor handle to control lilil acceleration and deceleration. Move the handle slowly. bolts. This completes the air venting of the fuel system. Try starting the engine aga1n.
(2) FORWARD- NEUTRAL (4) After the Engine has Started After the engine has started, check the (boat s topped) - REVERSE Clutch following items at a low engine speed: 1. Check that the gauges and alarm devices on the instrument panel are normal. 2. Check for water or oil leakage from the eng1ne. 3. Check that exhaust colour, engine vi- brations and sound are normal. 4. When there are no problems, keep the engine at l ow speed with the boat still stopped to send lube oil to all parts of the engine. 5. Check that sufficient cooling water is discharged from the seawater outlet pipe. Operation with too small seawater discharge will burn the impeller of the seawater pump.
If seawater discharge is too small, stop the engine immediately. Identify the cause and repair. 29