| 1. Compatible Engine Model |
- Model: 168F |
| - Displacement: 163cc |
| - Bore × Stroke: 68mm × 45mm |
| 2. Cylinder Head Material |
- Material: Aluminum alloy |
| - Surface Treatment: Usually anodized to enhance corrosion resistance and heat dissipation. |
| 3. Intake and Exhaust Valves |
- Intake Valve Diameter: 25mm |
| - Exhaust Valve Diameter: 24mm |
| - Valve Material: High-quality alloy steel, designed for high heat and wear resistance. |
| - Valve Springs: Optimized for strength and elasticity to ensure valve stability. |
| 4. Spark Plug Interface |
- Thread Size: M14 x 1.25 |
| 5. Cylinder Head Assembly Weight |
- Weight: Approximately 1.5kg. |
| 6. Combustion Chamber Design and Compression Ratio |
- Combustion Chamber Shape**: Hemispherical design to improve combustion efficiency. |
| - Compression Ratio: 8.5:1 |
| 7. Valve Clearance |
- Intake Valve Clearance: 0.15mm |
| - Exhaust Valve Clearance: 0.20mm |
| 8. Cooling System |
- Cooling Type: Air-cooled |
| - Cooling Fins: External fins on the cylinder head to enhance heat dissipation. |
| 9. Mounting Interfaces |
- Intake Port Diameter: 19mm |
| - Exhaust Port Diameter: 24mm |
| - Bolt Size: Typically secured with M8 bolts. |
| 10. Application |
- Suitable Equipment: Generators, tillers, water pumps, small construction equipment, etc. |
| 11. Quality Control |
- Testing Standards: Rigorous pre-delivery testing to ensure sealing, valve sealing, and durability. |
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