Part of the Isuzu 6SD1 engine documentation.
This Isuzu AA-6SD1T Workshop Manual is the factory service reference for the AA-6SD1T industrial diesel engine, a turbocharged 9.839 L six-cylinder unit. It runs 243 pages with a full text layer, so you can search and copy specs straight from the PDF.
Coverage is the complete overhaul path: general information with data and tightening torques, scheduled maintenance, three engine chapters for disassembly, inspection and repair, and assembly, plus dedicated sections for the lubrication, cooling, fuel and turbocharger systems, engine electrical, and troubleshooting. Repair standards at the back list wear limits and clearances.
Whether you are setting valve clearance, rebuilding the turbo, torquing the cylinder head, or chasing an overheating or hard start fault, the procedures and exact specs are here. Download it once and print any page you need at the bench.
What's Inside This Isuzu AA-6SD1T Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 4-23 | Servicing Precautions, Main Data and Specifications, Tightening Torque Specifications |
| Maintenance | 24-39 | Lubricating System, Fuel System, Valve Clearance Adjustment, Cylinder Compression Pressure |
| Engine I (Disassembly) | 40-57 | External Components, Cylinder Head, Piston and Connecting Rod |
| Engine Ii (Inspection and Repair) | 58-87 | Cylinder Head, Cylinder Block, Crankshaft, Pistons |
| Engine Iii (Assembly) | 88-119 | Piston and Connecting Rod Assembly, Cylinder Head Assembly, Timing Gear Train |
| Lubrication System | 120-131 | Oil Pump, Oil Filter, Oil Cooler |
| Cooling System | 132-141 | Water Pump, Thermostat |
| Fuel System | 142-155 | Injection Nozzle Disassembly, Reassembly, Opening Pressure Adjustment |
| Turbocharger | 156-175 | Troubleshooting, Disassembly, Inspection, Reassembly |
| Engine Electrical | 176-199 | Starter, Alternator |
| Troubleshooting | 200-221 | Starting Difficulties, Lack of Power, Overheating, Engine Sounds |
| Repair Standards | 226-241 | Wear Limits, Assembly Standards, Clearances |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Valve clearance (intake and exhaust) (cold engine) | 0.4 (0.016) mm (in) | p. 31 |
| Flywheel tightening torque | 74 ~ 83 (7.5 ~ 8.5 / 54 ~ 61) → 60° → 30° ~ 60° N·m (kgf·m/lb·ft) | p. 105 |
| Valve lift when fully open | 10 (0.39) mm (in) | p. 141 |
| Glow plug tightening torque | 22 ~ 27 (2.25 ~ 2.75 / 16.3 ~ 19.9) N·m (kgf·m/lb·ft) | p. 114 |
| injection nozzle opening pressure (1st stage) | 17.7 (180/2570) MPa (kg/cm2/psi) | p. 28 |
| Axial play of shaft & turbine wheel (Standard Clearance) | 0.075 – 0.155 (0.00295 – 0.00610) mm (in.) | p. 174 |
| Injection pump bolts tightening torque | 31 ~ 45 (3.2 ~ 4.6 / 23 ~ 33) N·m (kgf·m/lb·ft) | p. 114 |
| Cylinder head bolt tightening torque (M14 bolts) | 98 (10/72) → 142 ~ 152 (14.5 ~ 15.5 / 105 ~ 112) → 30° ~ 60° N·m (kgf·m/lb·ft) | p. 107 |
| Overflow valve opening pressure | 245 (2.5 / 36) kPa (kgf/cm2/psi) | p. 27 |
| Compression Ratio | 16.8 : 1 | p. 10 |
| Engine Weight | 693 kg | p. 10 |
| Total Exhaust Displacement | 9.839 L (601 cid) | p. 10 |
