818466 Mercruiser MAIN BEARING SET (.001 U.S.)

Operator information
* What happened, and when?* Under what conditions?* What else occurred?* When did the symptoms begin (and what else happened at that time)?LOGGED Diagnostic Codes
* Do they correlate to probable causes?* Did they occur at the same time as the symptoms?* Are some logged repeatedly?Other Symptoms
* Are they related to this symptom?* Do they have common probable causes?Finally, test each probable cause using the tests suggested by the procedure. Be sure to check connectors, especially on intermittent problems!P-101: Engine Will Not Crank
Probable root causes: This is NOT an EUI system problem.* Batteries* Starting circuit problem (in machine wiring)* Starting solenoid* Starter motor* Starter ring gear* Transmission or Power Take-Off problem* Hydraulic cylinder lock* Internal engine problemPerform the following tests in order: For details of tests below, see Testing and Adjusting section of SENR5539 Systems Operation, Testing & Adjusting, 3508 EUI Engine.1. Charge batteries (see Special Instruction SEH7633, for Battery Test Procedure).2. Load test batteries (see Special Instruction SEH9249, for Use Of 4C4911 Battery Load Tester).3. Check machine wiring to starter solenoid.4. Inspect starter cables for damage or loose connections.5. Remove and clean starter cables and connections if corroded.6. Test starter solenoid operation. Refer to 3508 EUI Engine, SENR5539, for Systems Operation Testing and Adjusting.7. Test starter motor operation. Refer to 3508 EUI Engine, SENR5539, for Systems Operation Testing and Adjusting.8. Check for fluid in cylinders by removing individual nozzles.9. Remove and inspect starter ring gear for damage.10. Disassemble engine to inspect internal components that may be seized, broken, out of alignment, etc. Refer to 3508 EUI Engine, SENR5558, for Disassembly & Assembly.P-102: Engine Cranks But Will Not Start
Probable root causes:* User Defined Shutdown active* Ground Level Shutdown active* Electrical power supply to ECM* Fuel supply or Injector priming problem* Electrical connections to the fuel injector solenoids* Engine Speed/Timing Signal* ECM or personality Module* Combustion problemPerform the following tests in order:1. Make sure the User Defined Shutdown input is not active. If the User Defined Shutdown input was active then determine the reason for activation of the input. After correcting the problem turn the keyswitch OFF for at least 15 seconds before trying to restart the engine. Use the ECAP tool "Display Status" screen number 4 to verify the condition of the input. Refer to P-536: User Defined Shutdown.2. Make sure the Ground Level Shutdown input is not active. If the Ground Level Shutdown input was active then determine the reason for activation of the input. After correcting the problem turn the keyswitch OFF for at least 15 seconds before trying to restart the engine. Use the ECAP tool "Display Status" screen number 4 to verify the condition of the input. Refer to P-507: Ground Level Shutdown.3. P-503: Electrical Power Supply Functional Test.4. If ECAP does not communicate with ECM, refer to P-523: CAT Data Link in this manual.5. Check Fuel Pressure. Also, check that fuel system is primed and that fuel supply and return lines are not restricted. In temperatures below 0°C (32°F), check for congealed fuel (wax).6. Check that J3/P3 thru J10/P10 (injector connectors) are installed correctly. Do P-515: Injector Solenoid Test, Step 1, as a quick check to confirm that the ECM can energize the injector solenoids.7. P-514: Engine Speed/Timing Sensor Functional Test. Also be sure that the timing reference gear is installed correctly (if the gear was installed backward (flipped over) during reassembly, the engine will not run). Also the reference gear must be properly keyed to the camshaft by means of the locating dowel.8. Check for combustion problems (too cold or mechanical problem).P-103: Engine Misfires, Runs Rough, Or Is Unstable
If the problem is intermittent and cannot be re-created, refer to P-111: Intermittent Low Power Or Power Cutouts.If the problem is consistent and can be re-created, continue with this procedure. Probable root causes: If the problem only occurs under certain conditions (high engine speed, full load, etc) test the engine under those conditions. Troubleshooting the symptoms under other conditions can give misleading results.* Individual cylinder malfunction* Throttle Switch signal* Fuel supply high pressurelow pressureair in fuelpoor fuel quality* Air inlet restriction* Exhaust restrictionPerform the following tests in order1. Isolate misfiring cylinder - refer to P-515: Injector Solenoid Functional Test, in this manual.2. Check the throttle switch signal by following P-504: Throttle Switch Functional Test, in this manual.3. Check fuel quality. Refer to Diesel Fuels and Your Engine, SEBD0717.4. Inspect fuel system and check fuel pressure. Refer to 3508 EUI Engine, SENR5539, Systems Operation, Testing & Adjusting.5. Check for air in fuel. Refer to 3508 EUI Engine, SENR5539, Systems Operation, Testing & Adjusting.6. Check for restrictions in the air inlet and exhaust systems. Refer to 3508 EUI Engine, SENR5539, Systems Operation, Testing & Adjusting.P-104: Low Power/Poor Or No Response To Throttle Switch
Probable root causes:* Active Diagnostic Codes* Throttle Switch signal* Turbo Compressor Outlet Pressure Sensor signal* Right Turbo Compressor Inlet Pressure Sensor signal* Left Turbo Compressor Inlet Pressure Sensor signal* Atmospheric Pressure Sensor signal* Fuel supply* Air inlet or exhaust system restrictions* Inlet air system leaks* Individual cylinder malfunction* Improper adjustment of FRC ValuePerform the following tests in order:1. Troubleshoot any ACTIVE diagnostic codes. CID-FMI Codes 262-03 or 04, 263-03 or 04, 273-03 or 04 or 13, 274-03 or 04 or 13, 275-03 or 04 or 13 and 276-03 or 04 or 13 limit power or RPM or both.2. Verify that engine has shifted out of Cold Mode.3. P-504: Throttle Switch Functional Test.4. P-517: Turbo Compressor Outlet Pressure Sensor Functional Test.5. P-518: Right Turbo Compressor Inlet Pressure Sensor Functional Test.6. P-525: Left Turbo Compressor Inlet Pressure Sensor Functional Test.7. P-519: Atmospheric Pressure Sensor Functional Test.8. Inspect fuel system components and check for correct fuel pressure and quality. Refer to Diesel Fuels and Your Engine, SEBD07179. Check air inlet and exhaust systems for restrictions and leaks, refer to 3508 EUI Engine, SENR5539, Systems Operation, Testing & Adjusting.10. Isolate misfiring cylinder - refer to P515: Injector Solenoid Functional Test, in this manual.11. Check FRC value. Refer to 3508 EUI Engine, SENR5539, System Operation Testing and Adjusting.P-110: