Haval engine piston ring kit - 1004900XEC71

⚙️ Part Name: Engine Piston Rings Kit

🔢 Original Part Number (OEM): 1004900XEC71

• 🔄 Integral compatibility: Fits directly onto engine piston number 1004011XEC71
• 📍 Location: Surrounds the piston diameter inside the piston rings of the engine cylinder.

🔧 Mechanical function and role:

• 🛡️ Combustion Chamber Compression Ring: The upper ring prevents the escape of combustion gases and air/fuel pressure from the top of the piston to the lower oil pan (Blow-by).
• 🛢️ Oil Control Ring: The lower piston rings wipe away excess oil from the cylinder walls and prevent it from leaking into the combustion chamber, leaving a micron-sized layer to lubricate the piston movement.
• 🌡️ Heat transfer and dissipation: It mainly contributes to dissipating the high heat from the piston head and sides and transferring it to the cylinder wall cooled by the coolant.

🚘 Compatibility and motors:

• ⚙️ Engine type: Great Wall/Haval 2.0L GW4C20 and GW4C20B turbo petrol engines
• 🚙 Compatible models (GWM / Haval / Tank):
  • Haval H9
  • Haval H6
  • Tank 300 (2.0T gasoline)
  • Haval F7 / F7x (2.0T engine)
  • Haval H8
  • Great Wall Poer / P-Series (Gasoline)

⚠️ The most prominent signs of damaged piston rings (weak piston rings):

• 💨 Continuous blue smoke coming out of the exhaust pipe due to oil burning inside the cylinder.
• 📉 A noticeable and rapid decrease in engine oil level without any external leakage.
• 🌪️ Strong oil vaporization and air/smoke coming out of the oil cap or oil gauge opening (Blow-by due to low pressure).
• ⚠️ General weakness in machine torque and a decrease in compression test readings.

💡 Technical tip during installation:

• Make sure to space the ring end gaps at opposite angles (according to the manufacturer's instructions - usually 120 or 180 degrees) and do not make the gaps in one alignment to avoid pressure and oil leakage.
• Make sure to measure the piston ring end clearance inside the cylinder before application to ensure safe expansion with turbo heat.