The Hino HO7C engine, a 6.728-liter in-line 6-cylinder diesel engine often found in heavy-duty trucks, features a bore of 110mm and a stroke of 118mm. While specific horsepower ratings can vary, some models are associated with around 165 kW (approximately 222 horsepower) and 686 Nm of torque at 1500 RPM,
Key Specifications of the Hino HO7C Engine:
- Engine Type: 4-stroke cycle, water-cooled, in-line 6-cylinder, overhead valve (OHV).
- Displacement: 6.728 Liters (410.6 Cubic Inches).
- Bore: 110 mm (4.33 inches).
- Stroke: 118 mm (4.65 inches).
- Firing Order: 1-4-2-6-3-5.
- Compression Ratio: 18.5:1 (for some variants).
- Valve Lash Clearances (Cold): Intake: 0.30 mm; Exhaust: 0.45 mm.
- Engine Oil Pressure: 7.2 PSI to 71.1 PSI.
- Injection Timing: 14 degrees Before Top Dead Center (BTDC).
- Fuel System: Direct Injection (DI).
- Fuel Type: Diesel.
Torque Specifications (Examples):
- Head Bolt: 40 – 50 nm (10mm bolt), 177 – 185 nm (14mm bolt).
- Flywheel: 177 – 185 nm.
- Conrod Bolt: 165 – 185 nm.
- Main Bolt: 138 – 156 nm.
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