Engine Mechanical System

Cylinder Head Cover Repair Procedures

11steps
~66min
3/5difficulty
010203040505.94N·mlb·ft
Tightening torque found on this page
Done 0 of 11

Removal

  1. Remove the engine cover.
  2. Disconnect the negative battery cable.
  3. Remove the air cleaner hose. (Refer to Intake and Exhaust System - "Air Cleaner")
  4. Disconnect the engine wiring connector and the cable clip, then remove the cylinder head protector and the wiring from the engine.
  5. Disconnect the exhaust valve OCV (Oil Control Valve) connector. (Refer to Fuel System - "CVVT Oil Control Valve")
  6. Disconnect the ignition coil. (Refer to Engine Electrical System - "Ignition Coil")
  7. Remove the PCV (Positive Crankcase Ventilation) hose (A).
  8. Remove the high pressure fuel pump. (Refer to Fuel System - "High Pressure Fuel Pump")
  9. Remove the cylinder head cover (A) and gasket (B).
    Loosen the cylinder head cover bolts in the order and steps shown.

Installation

  1. Install the cylinder head cover.
    1. Before assembly, remove the hardened sealant located on the upper mating surface between the timing chain cover and the cylinder head cover.
    2. Assemble within 5 minutes after applying sealant.

      Bead width: 2.0 ~ 3.0 mm (0.07 ~ 0.11 in.) Sealant: THREEBOND 5900H (LOCTITE 5900H)

    3. Install the cylinder head cover (A) with a new gasket (B).
      Do not reuse the removed gasket.
    4. Tighten the cylinder head cover bolts in the order and sequence shown. Tightening torque: Step 1: 3.9 ~ 5.9 N·m Step 2: 7.8 ~ 9.8 N·m
  2. Install in the reverse order of removal.

Test yourself

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