CRANKSHAFT BEARING REPLACEMENT GROUPS 7S8303 - Caterpillar

Contact with high pressure fuel may cause fluid penetration and burn hazards. High pressure fuel spray may cause a fire hazard. Failure to follow these inspection, maintenance and service instructions may cause personal injury or death.
Contact with high-pressure fuel may cause personal injury or death. Wait 10 minutes after the engine has stopped to allow fuel pressure to purge before any service or repair is performed on the engine fuel lines.
Table 4
Troubleshooting Test Steps Values Results
12. Electronic Unit Injectors
A. Use the electronic service tool to perform the automatic "Cylinder Cut Out Test".
Note: If the compression test that was performed in Test Step 11 was satisfactory, the "Cylinder Cut Out Test" will identify any faulty injectors.
Electronic Unit Injectors
Result: A faulty injector is indicated.
Repair: Remove any faulty electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit Injector - Remove".
Install new electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit Injector - Install".
Repeat the automatic "Cylinder Cut Out Test". If the fault is still apparent, remove the replacement electronic unit injector and install the original electronic unit injector. Refer to Disassembly and Assembly, "Electronic Unit Injector - Remove" and Disassembly and Assembly, "Electronic Unit Injector - Install".
Proceed to Test Step 14.
Result: All injectors are OK.
Proceed to Test Step 13.
13. Individual Malfunctioning Cylinders
A. With the engine speed at a fast idle, use the electronic service tool to perform the manual "Cylinder Cut Out Test".
As each cylinder is cut out, listen for a change in the sound from the engine. When a cylinder is cut out, there should be a noticeable change in the sound of the engine.
If a change in the sound of the engine is not noted, the isolated cylinder is not operating under normal conditions. If the isolation of a cylinder results in a change in the sound that is less noticeable, the cylinder may be operating below normal performance.
Cylinders
Result: The test indicates a faulty cylinder.
Repair: Investigate the cause of the fault on any cylinder that is not operating. Investigate the cause of the fault on any cylinder that is operating below normal performance.
Proceed to Test Step 14.
Result: The test indicates that all cylinders are OK.
Contact the Dealer Solutions Network (DSN).
14. Check the Aftertreatment System for Oil or Fuel
A. Remove excess oil or fuel from the piping with a clean cloth.
B. Remove the Clean Emissions Module (CEM). Refer to Disassembly and Assembly, "Clean Emissions Module - Remove and Install".
C. Support the CEM over a suitable container with the exhaust inlet downwards. Leave the CEM to drain for 8 hours.
D. Check the quantity of drained oil or fuel in the container.
CEM
Result The volume of drained oil or fuel is greater than 1.0 L (1.05669 qt).
Repair: Install a replacement CEM. Refer to Disassembly and Assembly, "Clean Emissions Module - Remove and Install".
Return the unit to service.
Result The volume of drained oil or fuel is less than 1.0 L (1.05669 qt).
Proceed to Test Step 15.
15. Recover the Aftertreatment System
A. Clean any remaining oil or fuel from the piping and the CEM