Caterpillar 3508 Diesel Engine Factory Service & Repair Manual • P/N SENR2995, dated July 1986

Caterpillar 3500 Series Diesel Engine Technical Manual

Get immediate access to the official 650-page OEM documentation for 1986 and newer Caterpillar 3508, 3512, and 3516 Industrial diesel engines. This comprehensive reference covers 60-degree V-8, V-12, and V-16 configurations, delivering the exact specifications you need directly to the shop floor.

• Instant download directly to your device upon ordering.
• Features 68 exploded-view technical illustrations and 6 detailed system schematics.
• Includes 28 primary torque and specification tables.
• Fully searchable OCR text layer—jump straight to a torque spec or part number.
• Print individual pages or complete sections to take into the workshop.
• Permanent account access requires no future re-buys.

Component and System Documentation

This factory publication details the foundational engine design alongside the fuel injection, air induction, and lubrication systems. It gives technicians precise measurements for critical components, outlining specifications for connecting rods, main bearing journals, and flywheel housing runout. You will find complete reference material covering hydramechanical and electrical protective systems, including overspeed settings and sensor verification procedures. The documentation is structured to support complex diagnostic and repair planning by showing exact factory tolerances. Note that chapters on the deleted alternator and starter motor are excluded from this release.

Specification and Calibration Data

Accuracy matters when assembling heavy-duty equipment. The manual lists exact tightening torque values for bolts, nuts, and taperlock studs in both Nm and lb-ft. For the 3500 series, the cylinder head specification table mandates an intake valve clearance of 0.38 mm, while the exhaust valve clearance remains at 0.76 mm throughout the engine block. You also get access to critical camshaft lobe lift data, cooling system capacities, and fuel pressure regulator settings ranging from 415 to 620 kPa. Prioritize safety during any mechanical repair or maintenance routine by treating this guide as a professional reference, and ensure operations are performed or verified by certified personnel.