Specifications

CE335

Multiple EDI Engine Battery Precautions

Situation

Alternators: Alternators are designed to charge the battery that supplies electrical power to the engine that the

alternator is mounted on. When batteries for two different engines are connected, one alternator will supply all

of the charging current for both batteries. Normally, the other engine’s alternator will not be required to supply

any charging current.

EDI Electronic Control Module (ECM): The ECM requires a stable voltage source. During multiple engine op-

eration, an onboard electrical device may cause a sudden drain of voltage at the engine’s battery. The voltage

may go below the ECM’s minimum required voltage. Also, the alternator on the other engine may now start

charging. This could cause a voltage spike in the engine’s electrical system.

In either case, the ECM could shut off. When the voltage returns to the range that the ECM requires, the ECM

will reset itself. The engine will now run normally. This ECM shut down usually happens so fast that the engine

just appears to have an ignition miss.

Recommendations

Batteries: Boats with multi-engine EDI power packages require each engine be connected to its own battery.

This ensures that the engine’s Electronic Control Module (ECM) has a stable voltage source.

Battery Switches: Battery switches should always be positioned so each engine is running off its own battery.

DO NOT operate engines with switches in BOTH or ALL position. In an emergency, another engine’s battery can

be used to start an engine with a dead battery.

Battery Isolators: Isolators can be used to charge an auxiliary battery used for powering accessories in the

boat. Isolators should not be used to charge the battery of another engine in the boat unless the type of isolator

is specifically designed for this purpose.

Generators: The generator’s battery should be considered in the same manner as another engine’s battery.

CE10

Engine Break-In

INITIAL BREAK-IN PROCEDURE

It is especially important that the following procedure be used on new diesel engines. This break-in procedure

allows the proper seating of the pistons and rings, which greatly reduces the likelihood of problems.

IMPORTANT: It is recommended that the boat not be accelerated hard until this procedure has been

completed.

IMPORTANT: Never operate the starter motor longer than 15 seconds at a time, to avoid overheating the

starter motor. If engine does not start, wait 1 minute to allow the starter motor to cool; then, repeat start-

ing procedure.

INITIAL BREAK-IN PROCEDURE IS AS FOLLOWS:

1. Refer to “Starting, Shifting and Stopping” and start engine. Allow engine to idle until it has reached normal

operating temperature.

2. Run engine in gear for 3 minutes at each of the following rpms: 1200 rpm, 2400 rpm and 3000 rpm.

3. Run engine in gear for 3 minutes at each of the following rpms: 1500 rpm, 2800 rpm and 3200 rpm.

4. Run engine in gear for 3 minutes at each of the following rpms: 1800 rpm, 3000 rpm and Maximum Rated

Full-Throttle rpm.