Overview
The John Deere PowerTech 4.5L & 6.8L diesel engine repair service manual provides a technical reference for the covered equipment. Its purpose is to help locate information relevant to inspection, troubleshooting, servicing and repair, as applicable to the supplied publication.
The documented contents outline identifies general information, repair and adjustments (4 cylinder engine), repair and adjustments (6 cylinder engine) and base engine theory of operation. The table below lists selected source-supported subjects; consult the publication for exact service procedures and specifications.
Table of Contents
John Deere PowerTech 4.5L & 6.8L Manual
Main sections and selected subjects identified in the source documentation:
- General Information
- Repair and Adjustments (4 Cylinder Engine)
- Repair and Adjustments (6 Cylinder Engine)
- Base Engine Theory of Operation
- Diagnostics
- Tools and Other Materials
- Specifications
- covers the repair and adjustment procedures for 4.5L engines.
- Section 01—General Information
- Group 000—Safety
- Group 001—Engine Identification
- Group 002—Fuels, Lubricants, and Coolant
- Section 02A—Repair and Adjustments (4 Cylinder Engine)
- Group 010—Engine Rebuild (4045)
- Group 020—Cylinder Head and Valve Repair and Adjustment (4045) (Two-Valve Head Engines)
- Group 021—Cylinder Head and Valve Repair and Adjustment (4045) (Four-Valve Head Engines)
- Group 030—Cylinder Block, Liners, Pistons, and Rods Repair and Adjustment (4045)
- Group 040—Crankshaft, Main Bearings, and Flywheel Repair and Adjustment (4045)
- Group 050—Camshaft, Balancing Shaft and Timing
- Gear Train Repair and Adjustment (4045)
- Group 060—Lubrication System Repair and Adjustment (4045)
- Group 070—Cooling System Repair and Adjustment (4045)
- Group 080—Air Intake and Exhaust System Repair and Adjustment (4045)
- Group 081—Air Intake and Exhaust System Repair and Adjustment (Marine 4045)
- Group 090—Electronic Fuel System Repair and Adjustment (4045)
- Group 100—OEM Starting and Charging Systems Repair and Adjustment (4045)
- Section 02B—Repair and Adjustments (6 Cylinder Engine)
- Group 010—Engine Rebuild (6068)
- Group 020—Cylinder Head and Valve Repair and Adjustment (6068) (Two-Valve Head Engines)
- Group 021—Cylinder Head and Valve Repair and Adjustment (6068) (Four-Valve Head Engines)
- Group 030—Cylinder Block, Liners, Pistons, and Rods Repair and Adjustment (6068)
Using the Technical Reference
Use the identified sections to locate relevant information, and follow any model-specific instructions, limits and precautions in the original documentation.








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