Marinediesel 5L V8, Owner'S Manual, Page: 152 / 248

150
DIAGNOSTIC STRATEGY
The diagnosis of faults related to the MarineDiesel engine involves the following steps:
1
Verify that a condition related to a fault exists
2 Select the condition of the fault
3 Select a system or check that relates to the condition
4 Perform checks of system components to find the fault
5 Make the necessary repair to the fault
6 Verify that the repair has eliminated the condition
The process of verifying that a condition related to a component of the 6.5L V8 Diesel engine
exists includes the following steps:
1
Inspect the level and condition of fluids, and observe any leakage from components:
-Engine oil
-Coolant
-Air
-Fuel
2 Inspect the condition and tension of the accessory drive belt.
3
Inspect the condition of the outside air intake and air filter element.
4
Inspect electrical wiring and connectors:
-Check batteries
-Generator
-Starter
-Fuel shut-off solenoid
-Housing Pressure Cold Advance solenoid
-Engine speed sensor
-Oil pressure switch/sending unit
-Glow plug controller/relay
-Glow plugs
-Coolant temperature switch/sending unit
-Fuel pump relay
-Junction block and fusible links
-Fuses
-Fuel pump
5 Operate the engine (if possible) and observe the following:
-Listen for unusual noises.
-Look for excessive exhaust smoke.
-Observe the smoothness of engine and driveline operation at various boat speeds and
loads.