This is the factory service manual for the Mitsubishi S6E and S6E2 diesel engines, the units fitted to Mitsubishi FD35, FD38, FD40, FD45, FD50C and FD50 forklift trucks. Across 167 pages it walks the engine end to end: cylinder head and valve mechanism, timing gear and camshaft, pistons, connecting rods, crankshaft and crankcase, the injection pump, governor, feed pump and nozzles, cooling, inlet and exhaust, and the starter and alternator.
An engine apart on a stand earns nothing, and every hour spent hunting for a bearing clearance or a torque figure is an hour it stays that way. The Service Standards section collects the tightening torques, wear limits and sealant list in one place, and each teardown chapter pairs inspection values with the procedure.
It is a printable PDF, so the same pages work on a shop laptop or as grease stained printouts beside the block, wherever the engine happens to be.
What's Inside This Mitsubishi S6E, S6E2 Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 1-5 | Foreword, Range of Coverage and How to Use This Manual, General Contents |
| General | 6-14 | Oil Seals, O-Rings, Bearing, Lock Plates, Split Pins and Spring Pins |
| Service Standards | 15-27 | Table of Service Standards, List of Tightening Torques, List of Sealants to Be Applied |
| List of Special Tools | 28-32 | Valve Guide Installer, Valve Guide Mover, Valve Spring Pusher, Insert Caulking Tool, Sleeve Installer, Piston Ring Plier |
| Disassembly Determination | 33-36 | Determining When to Overhaul, Measuring Compression Pressure |
| Adjusting, Running in and Performance-Testing the Engine | 37-44 | Adjusting the Engine, Run-In, Performance Test |
| Removing and Mounting Auxiliary Equipment | 45-50 | Removing Auxiliaries, Mounting the Auxiliaries |
| Engine Body | 51-94 | Cylinder Head and Valve Mechanism, Flywheel, Timing Gear and Camshaft, Piston, Connecting Rod, Crankshaft and Crankcase |
| Inlet and Exhaust System | 95-98 | Air Cleaner, Inlet Manifold, Exhaust Manifold, Muffler |
| Cooling | 99-104 | Water Pump, Thermostat |
| Fuel | 105-148 | Injection Nozzle, Feed Pump, Injection Pump, Governor |
| Electrical | 149-163 | Starter, Alternator |
| Miscellaneous | 164-167 | Oil Seals, O-Rings, Bearing, Lock Plates, Split Pins, Spring Pins |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| S6E | ||
| Cylinder sleeve inside diameter S6E | 94.000-94.035 mm (3.7008-3.7022 in) | p. 17 |
| Piston outside diameter (Skirt) S6E S.T.D. | 93.875-93.845 mm (3.6959-3.6947 in) | p. 19 |
| S6E2 | ||
| Cylinder sleeve inside diameter S6E2 | 98.000-98.035 mm (3.8583-3.8596 in) | p. 17 |
| Piston outside diameter (Skirt) S6E2 S.T.D. | 97.875-97.845 mm (3.8533-3.8522 in) | p. 81 |
| All Models | ||
| Piston ring No. 1 ring clearance | 0.030-0.070 mm (0.00118-0.00276 in) | p. 20 |
| Piston ring No. 2 ring clearance | 0.025-0.060 mm (0.00098-0.00236 in) | p. 20 |
| Main bearing clearance between crankshaft and journal | 0.050-0.115 mm (0.00197-0.00453 in) | p. 17 |
| Clearance between crank pin and rod bearing | 0.035-0.100 mm (0.00138-0.00394 in) | p. 20 |
| Thrust bearing width (thrust clearance) | 0.100-0.264 mm (0.00394-0.01039 in) | p. 17 |
| Valve clearance (cold) | 0.25 mm (0.01 in) | p. 17 |
| Intake valve stem outside diameter | 7.955-7.940 mm (0.3132-0.3126 in) | p. 18 |
| Clearance between main bearing and crank journal | 0.050-0.115 mm | p. 89 |
