Engine Mechanical System

Cylinder Head Cover Repair Procedures

19steps
~114min
4/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 19

DEPOSIT

  1. Disconnect the negative battery cable.
  2. Remove the air duct and air cleaner assembly. (Refer to Intake and Exhaust System - "Air Cleaner")
  3. Drain the engine coolant. (Refer to Cooling System - "Coolant")
  4. Disconnect the wiring connectors and harness clamps, and remove the wiring protector around the intake manifold and cylinder head cover.
  5. Disconnect the vacuum hoses (A) from the brake booster.
  6. Disconnect the positive crankcase ventilation (PCV) hose (A), then remove the brake vacuum tube (B).
  7. Remove the heated oxygen sensor (HO2S). (Refer to Fuel System/Engine Control - "Heated Oxygen Sensor (HO2S)")
  8. Disconnect the coolant hose (A).
  9. Remove the heat shield from the turbocharger intake manifold module (A).

    Tightening torque: 9.8–11.8 N·m

  10. Remove the turbocharger water hose (B). Tightening Torque Water pipe mounting bolt: 9.8–11.8 N·m Eye bolt: 26.5 ~ 32 N·m
  11. Remove the heat shield (A) and the engine mount (B).

    Tightening torque: 18.6~24 N·m

  12. Remove the high-pressure fuel pump. (Refer to Engine Control and Fuel Supply System - "High Pressure Fuel Pump")
  13. Remove the ignition coil. (Refer to Engine Electrical System - "Ignition Coil")
  14. Remove the oil pan (A) from the cylinder head together with the gaskets.

REMEDY

  1. Remove the hardened sealant located at the upper joint between the timing chain cover and the cylinder head before installing the cylinder head cover.
  2. Install within 5 minutes after applying the sealant.

    Bead width: 2.0 ~ 3.0 mm (0.08 ~ 0.12 in.)

  3. Install the cylinder head cover (A) with a new cylinder head cover support.
  4. Install the cylinder head cover bolts in two steps. Tightening Torque Step 1: 3.9~5.9 N·m Step 2: 7.8–9.8 N·m
  5. Install the remaining parts in the reverse order of removal.

Test yourself

A quick Hyundai i20 quiz: every answer comes with an explanation and a link to the manual page.