Description
An essential technical guide for the Caterpillar 3406 Series B and C engines equipped with PEEC (Pressure-End Electronic Control) fuel systems. This repair manual offers in-depth procedures for full engine overhaul, including step-by-step disassembly and reassembly of the cylinder head, block, crankshaft, pistons, and valve train. Contains precise torque specifications, tolerance charts, and break-in protocols. Covers diagnostics and repair of the PEEC electronic fuel injection system—detailing sensor layouts, wiring diagrams, timing settings, and fault codes. Includes lubrication system, cooling circuit, and emission control maintenance. Thoroughly illustrated with exploded views, cross‑section diagrams, and component callouts, this manual is invaluable for mechanics servicing heavy-duty trucks, industrial equipment, and power-generation units powered by the 3406 B–C engine platform.














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