Hino's own part number, 93211-00720, identifies this 245-page Hino J08C-TI workshop manual PDF as the original factory shop manual for the 7.961-liter turbocharged diesel engine. Fuel injection gets the most coverage, from nozzle overhaul and spray profile testing through injection pump timing, governor and boost compensator adjustment, and the calibration charts used to set injection volume. Wiring diagrams lay out the generator charging circuit, and the cylinder head, liner, piston, ring and crankshaft chapters give you the overhaul criteria for the rotating assembly and valve train. Set injector pop pressure to 22.1-22.5 MPa on new nozzle parts, or 21.6 MPa if you reuse them, then torque the retaining nut to 59-79 N-m. A half-built engine on the stand can lose days waiting on one number. This bookmarked, text-searchable PDF travels with you from bench to service truck, so every clearance and torque value is on hand before the block goes back together.
What's Inside This Hino J08C-TI Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 1-17 | General Precaution, Identification Information, Specifications, Specified Torque, Engine Pipe Joints and Gaskets, Recommended Lubricants |
| Engine General Information and Specifications | 18-31 | Data and Specifications, Troubleshooting, Engine Tuneup, Engine Overhaul Criteria, Liquid Gasket Application |
| Cylinder Head and Valve System | 32-50 | Liquid Gasket Application Points, Cylinder Head Overhaul, Valve Guide Replacement, Valve Seat Replacement, Valve Stem Oil Seal |
| Air Intake, Exhaust, and Oil Systems | 51-73 | Air Intake and Exhaust System, Oil Pan, Lubricating System, Oil Pump, Oil Filter and Oil Cooler |
| Main Moving Parts and Cylinder Block | 74-90 | Cylinder Liner, Piston and Rings, Connecting Rod, Crankshaft, Cylinder Block Inspection |
| Fuel System and Injection Nozzles | 91-114 | Fuel System Diagram, Injection Nozzle Overhaul, Nozzle Operating Pressure, Spray Profile Test, Nozzle Holder Assembly |
| Fuel Injection Pump and Cooling System | 115-127 | Fuel Injection Pump Removal and Mounting, Injection Timing Adjustment, Cooling System Diagram, Coolant Pump Overhaul, Thermostat Inspection |
| Turbocharger | 128-147 | Troubleshooting, Data and Specification, Turbine Shaft Play, Overhaul Criteria |
| Fuel Injection Pump | 148-171 | Troubleshooting, AD-Type Pump, FP/KE-Type Feed Pump, Tappet Top Clearance |
| Governor | 172-185 | Description, Special Tool, Overhaul, Adjustment of Governor, Adjustment of Boost Compensator |
| Generator | 186-209 | Data and Specifications, Description, Troubleshooting, Overhaul, Performance Test, Inspection and Repair |
| Starter | 210-223 | Data and Specification, Description, Troubleshooting, Overhaul, Inspection and Repair |
| Calibration | 224-231 | Injection Pump Calibration, Injection Volume Adjustment, Governor Characteristic Diagram, Boost Compensator Characteristic Diagram |
| Electrical Equipment | 232-245 | Data and Specification, Location of Electrical Equipment, Troubleshooting, Battery, Inspection |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Injection nozzle valve opening pressure | 16.7 MPa (1st stage), 21.6 MPa (2nd stage) | p. 19 |
| Retaining nut tightening torque | 59-79 N-m | p. 101 |
| Solenoid and link rod standard clearance | 2-3 mm | p. 241 |
| Engine Displacement | 7.961 liters | p. 10 |
| Engine Dry Weight | 580 kg | p. 10 |
| Intake Valve Clearance (cold) | 0.30 mm | p. 19 |
| Exhaust Valve Clearance (cold) | 0.45 mm | p. 19 |
| Standard Compression Pressure | 3.4-3.7 MPa | p. 30 |
| Standard Oil Pressure | 49-490 kPa | p. 31 |
| Cylinder Head Bolt Tightening Torque (M12) | 59 N·m + 90° + 90° | p. 45 |
| Cylinder Head Bolt Tightening Torque (M10) | 59 N·m | p. 45 |
| Main Bearing Cap Bolt Tightening Torque | 69 N·m + 90° + 45° | p. 81 |
Hino J08C-TI Common Problems This Manual Covers
Hino J08C-TI diesel engine with difficult starting, rough idling and a lack of power
Check compression on each cylinder and compare it against the 3.4-3.7 MPa standard on page 30. Verify cold valve clearance at 0.30 mm intake and 0.45 mm exhaust per page 19. Then work through the difficult starting and lack of power charts on page 20 before you condemn the injection pump.
Manual Section: Engine Troubleshooting p. 20Cooling system thermostat and coolant pump inspection when the engine keeps overheating
Inspect the thermostat and overhaul the coolant pump using the cooling system diagram in the section starting on page 115. Work the overheating chart on page 20 first to rule out other causes. If the head comes off, torque the M12 bolts in sequence to 59 N·m + 90° + 90° per page 45.
Manual Section: Fuel Injection Pump and Cooling System p. 115Cylinder liner, piston and rings inspection after teardown for piston seizure and excessive oil consumption
Inspect the cylinder liner, piston and rings using the Main Moving Parts section starting on page 74, and find the cause in the troubleshooting chart on page 21 before ordering parts. On reassembly, torque the main bearing cap bolts to 69 N·m + 90° + 45° per page 81 and the connecting rod bolts to the same 69 N·m + 90° + 45° per page 86.
Manual Section: Main Moving Parts and Cylinder Block p. 74Turbocharger dense black smoke, white smoke, or a high pitched noise and vibration
Inspect the turbocharger using the troubleshooting chart in the section starting on page 128. Match dense black smoke, white smoke, poor response or high pitched noise to the cause listed for it. Confirm the lubricating oil supply before you fit a replacement, because sudden shortage of lubricating oil has its own entry in that chart.
Manual Section: Turbocharger p. 128Fuel injection pump trouble where the engine starts and stops or always runs at high speed
Check the fuel injection pump against the troubleshooting chart in the section starting on page 148 for irregular low idle, starts and stops, or always running at high speed. Adjust the governor and boost compensator following page 172. Then verify injection volume on the bench against the governor characteristic diagram in the calibration section starting on page 224.
Manual Section: Fuel Injection Pump p. 148Injection nozzle opening pressure suspected with excessive smoke, low engine power and loud knocking
Test each nozzle's first opening pressure and spray profile following page 105. Look for 16.7-17.5 MPa on new parts and 16.7 MPa on reused parts. When you reassemble, torque the adjustable retaining nut to 59-79 N-m per page 108 and the nozzle clamp bolt to 25 N-m per page 102.
Manual Section: Fuel System and Injection Nozzles p. 105Frequently Asked Questions
What are the cylinder head torque specifications for the Hino J08C-TI engine?
The cylinder head bolts are tightened in two stages. First, tighten the M12 bolts (No. 1-26) to 59 N-m (600 kgf-cm, 43 lbf-ft). Then, mark the bolts and turn them an additional 90 degrees, followed by a final retightening of 90 degrees. p. 45
What is the connecting rod nut torque for the Hino J08C-TI?
The connecting rod nuts should be tightened to an initial torque of 69 N-m (700 kgf-cm, 51 lbf-ft). After reaching this torque, they must be tightened an additional 90 degrees and then another 45 degrees. p. 86
What is the injection pipe tightening torque on the Hino J08C-TI?
The injection pipe nut should be tightened to 39 N-m (400 kgf-cm, 28 lbf-ft). p. 102
What is the standard valve clearance for the Hino J08C-TI engine when cold?
When the engine is cold, the intake valve clearance should be 0.30 mm (0.0118 in.) and the exhaust valve clearance should be 0.45 mm (0.0177 in.). p. 26
What is the standard oil pressure for the Hino J08C-TI engine?
The standard oil pressure for the engine is 49-490 kPa (0.5-5.0 kg/cm², 7.11-71.10 lbf/in.²). If the pressure is 49 kPa (0.5 kg/cm², 7.11 lbf/in.²) or less, it is considered the service limit. p. 31
How quickly can I access this Hino J08C-TI manual after buying?
You get a 245-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Is printing allowed for this Hino J08C-TI Workshop Manual?
Yes. Print the sections you need to take out to the shop for your own use. Standard letter or A4 paper works.
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