Section 02 MAINTENANCE
Subsection 04 (WATER-FLOODED ENGINE)
WATER-FLOODED ENGINE
GENERAL
NOTE: This procedure to be performed for each engine.
If an engine becomes water-flooded, it must be serviced within a few hours after the event. Oth- erwise engine(s) will have to be overhauled.
CAUTION: Each water-flooded engine must be properly lubricated, operated then lubricated again, otherwise parts will be seriously dam- aged.
PROCEDURE
Check fuel reservoir for water contamination. If necessary, siphon and refill with fresh fuel.
To limit damages to the engine(s), perform the fol- lowing procedure as soon as possible for each en- gine.
Drain bilge if water is present.
If it was submerged in salt water, spray bilge and all components with fresh water using a garden hose to stop the salt corroding effect.
CAUTION: Never try to crank or start the engines. Water trapped in the intake manifold would enter t h e combusti on chambers through the intake valves and may cause dam- age to the engines.
Whenever the engines are stopped, all the valves close to prevent water from being ingested in the engines.
If water is suspected to be in the intake manifolds and the exhaust systems, they must be drained as follows:
Remove each intake manifold and suck out the water from the intake valve ports. Refer to subsec- tion INTAKE SYSTEM.
Remove the water from each engine’s oil/air sep- arator breather hose.
Remove the exhaust pipes, the mufflers and the resonators and drain them. Refer to subsection EXHAUST SYSTEM.
If water gets in the oil (oil will appear milky), change the engine oil and filter as follows for each engine:
Oil Change Procedure
ENGINE WITHOUT THE SCAVENGE OIL PUMP COVER DRAIN PLUG
CAUTION: Never crank or start an engine when siphon tube is in dipstick hole. Never start an engine when there is no oil in that engine.
1. Using the oil VAC (P/N 529 035 880), siphon oil through dipstick hole.
2. Remove the oil VAC tool from the dip stick hole.
3. While in drowned engine mode, crank the en- gine for 5 seconds.
4. Remove the oil filter cap and the oil filter.
5. Again, siphon oil from the reservoir.
6. Install a new oil filter and reinstall the oil filter cap.
7. Fill up the reservoir with fresh oil.
8. Run the engine for 3 minutes in a test tank or connected to a flush kit
9. Repeat the above steps 1 to 7.
10. Boil out the remaining water as follows:
a. Recommended procedure: BOIL OUT PRO- CEDURE IN A TEST TANK OR TIED TO A TRAILER WITH SPORT BOAT IN WATER.
b. Optional procedure: BOIL OUT PROCEDURE CONNECTED TO A FLUSH KIT.