Caterpillar (CAT) 3114 / 3116 / 3126 Engines Service & Repair Manual

Caterpillar 3114, 3116, 3126 Engines Service & Repair Manual Set

Serial numbers covered:

• 2ZF1 and up
• 4TF1 and up
• 5EF1 and up
• 2FG1 and up
• 2WG1 and up
• 1CK1 and up
• 3AK1 and up
• 55K1 and up
• 6JK1 and up
• 4RR1 and up
• 6RR1 and up
• 7JS1 and up
• 97Z1 and up
• 98Z1 and up
• 1DR1 and up
• 8DN1 and up

This factory manual set provides in-depth technical service information for Caterpillar 3114, 3116, and 3126 diesel engines used in Caterpillar-built machines. It combines multiple volumes including Systems Operation, Testing & Adjusting, Disassembly & Assembly, Specifications, and a dedicated Supplement covering additional serial number ranges. Each section is structured for precision and clarity, with OEM procedures, diagrams, tolerances, and inspection specs designed for professional technicians and rebuilders.

Whether you're troubleshooting fuel pressure irregularities, adjusting injector synchronization, or performing a full engine overhaul, this manual offers step-by-step instructions and critical measurements to ensure correct service and long-term reliability. It covers all major engine systems — from air handling and turbocharging to cooling, lubrication, electrical systems, and more — with detailed teardown and reassembly guidance throughout.

Contents Overview:

• Systems Operation – Explains core engine design, airflow, fuel delivery, electrical function, and lubrication systems with operational theory and diagrams.
• Testing & Adjusting – Includes diagnostic and adjustment procedures such as fuel quality tests, turbocharger inspection, injector timing, blow-by measurement, compression testing, valve lash adjustment, and electrical system testing.
• Specifications – Full technical data including wear limits, torque values, component specs, and clearances for internal assemblies, rotating components, camshaft gear trains, and more.
• Disassembly & Assembly – Step-by-step teardown and installation procedures for major engine components including cylinder heads, injectors, camshafts, crankshafts, pistons, oil pumps, flywheel housings, and related subcomponents.
• Supplement Manual – Covers extended engine serial ranges with additional service procedures, sensor specs, and electrical adjustments not found in the core manuals.

Built for shop floors and field service alike, this manual is essential for any technician working on these mid-size Caterpillar diesel platforms. Ideal for diagnosing performance issues, rebuilding key components, or verifying tolerances during reassembly.

Printable: Yes
Compatibility: Works on Windows, Mac, iOS, Android
Requirements: PDF reader (e.g. Adobe Reader)