Part of the Yanmar Repair Manuals.
Yanmar's own publication number, 0000A0C1483 T 8502, is printed on this service manual, and that matters when you have a TF series diesel stripped to the crankcase and need numbers you can trust. It covers the TF50 through TF160 engines in their radiator, hopper cooled, lighting device, and electric starting versions.
Guesswork is what ruins these rebuilds: a head pulled down unevenly, a rod bolt stretched past its range, valve seats lapped without checking the wear limits. The manual replaces that with factory service standards for the cylinder head, piston, crankshaft, camshaft and fuel system, a full disassembly and reassembly sequence, inspection limits for every wearing part, and a troubleshooting chart that works from the symptom back to the cause.
It is a 52 page PDF, so it goes wherever the engine is: on a tablet beside the stand, or printed as loose pages you can wipe clean.
What's Inside This Yanmar TF50–TF160 Series Manual
| System | Pages | Key Topics |
|---|---|---|
| External Views | 5 | Tf (Radiator), Tf-H (Hopper), Tf-L (Lighting Device), Tf-E (Electric Starting) |
| Sectional Views | 6 | |
| Specifications | 7-8 | Specifications of Engine with Radiator and Hopper, Specifications of Engine with Electric Starter and Lighting Device |
| Service Standards | 9-11 | Cylinder Head, Piston, Crank Shaft, Cam Shaft, Fuel System, Electric Appliances |
| Main Bolt/Nut Tightening Torques | 12 | Balance Weight Bolt, Connecting Rod Bolt, Cylinder Head Clamp Bolt, Flywheel End Nut, Fuel Injection Pump Delivery Valve Holder, Standard Bolt Tightening Torque |
| Disassembly and Reassembly | 13-27 | Preparation for Disassembly and Reassembly, Disassembling/Assembing Tools, Meters, Instruments and Service Accessories, Disassembly, Reassembly |
| Inspection and Servicing | 28-44 | Cylinder Head, Intake and Exhaust Valves, Cylinder Liner, Piston, Crankshaft, Connecting Rod, Camshaft, Tappet |
| Maintenance Schedule | 45 | Fuel System, Lubricating Oil System, Cooling Water System, Air Cleaner, Items Associated with Cylinder Head, Fuel Injection Valve |
| Troubleshooting | 46-51 | Insufficient Output, Overheating, Excessive Engine Oil Consumption, Poor Starting, Engine Knock, Fault Diagnosis by Exhaust Smoke |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cylinder head bolt tightening torque (TF50, TF60, TF70, TF80, TF90) | 9.50 - 10.50 kg-m | p. 27 |
| Cylinder head bolt tightening torque (TF110, TF120) | 13.10 - 14.10 kg-m | p. 27 |
| Fuel filter element cleaning interval | Every 300 hours of service | p. 43 |
| Fuel filter element replacement interval | Every 600 hours of service | p. 43 |
| Lubricating oil pump outer rotor to pump body clearance (TF50 Standard) | 0.120-0.161 mm | p. 44 |
| Lubricating oil pump outer rotor to pump body clearance (TF60, TF70, TF80, TF90 Standard) | 0.100-0.151 mm | p. 44 |
| Fuel pump clamping nut tightening torque (TF50) | 2.30-2.90 kg-m | p. 12 |
| Fuel injection pump delivery valve holder tightening torque (TF50-TF120) | 4.00-4.50 kg-m | p. 12 |
| Starting motor type and output | 12 V-1.2 kW | p. 11 |
| Starting motor brush spring force (Standard) | 1.4-1.8 kg-mm | p. 11 |
| TF50 Rated Continuous Output | 4.5 HP/2400 rpm | p. 7 |
| TF50 Connecting Rod Bolt Torque | 2.20-2.40 kg-m | p. 12 |
