Kia Stinger CK Quiz
Engine Mechanical System

Cylinder head cover

In this manual: Engine Mechanical System
General Information — 8Maintenance — 27Engine Mechanical System — 47Engine Electrical System — 19Emission Control System — 12Engine Control System/Fuel System — 51Automatic Transmission System — 34All-Wheel Drive (AWD) System — 7Drive Shaft and Axle — 15Suspension System — 25Steering — 8Restraints — 19Brake System — 22Body (Interior and Exterior) — 47Front Seat Belt — 63Body Electrical System — 99Windshield Wiper/Washer — 11Heating, Ventilation, and Air Conditioning — 32
34steps
~224min
5/5difficulty
4special tools
0102030405019.614N·mlb·ft
Tightening torque found on this page
Done 0 of 34

Repair Procedures

Removal

  1. Disconnect the negative battery cable.

  2. Remove the engine cover.

    (See Engine and Transaxle Assembly - Engine Cover)

  3. Remove the air cleaner assembly.

    (See Intake and Exhaust System - Air Cleaner)

  4. Remove the engine compartment under cover (front).

    (See Engine and Transaxle Assembly - Under Hood)

  5. Drain the engine coolant.

    (Refer to Cooling System - "Engine Coolant")

  6. Drain the engine oil.

    (See Lubrication System - Engine Oil)

  7. Remove the cylinder head cover.

    (Refer to Cylinder Head Assembly - "Cylinder Head Cover")

  8. Remove the timing chain.

    (See Timing System - Timing Chain)

  9. Remove the intake manifold.

    (See Intake and Exhaust System - Intake Manifold)

  10. Remove the exhaust manifold.

    (Refer to Intake and Exhaust System - Turbocharger and Exhaust Manifold)

  11. Disconnect the bypass hose (A).

  12. Disconnect the oil cooler hose (A) and the electronic throttle control (ETC) water hose of the module (B).

  13. Remove the discharge pipe.

    (See Engine Control/Fuel System - "Delivery Pipe")

  14. Remove the camshaft.

    (Refer to Cylinder Head Assembly - "CVVT and Camshaft")

  15. Remove the cylinder head.

    1. Using a triple square wrench, loosen and remove the 10 cylinder head bolts evenly in several passes in the sequence shown. Remove the 10 cylinder head bolts and plate washers.

    2. Lift the cylinder head (A) off the dowels on the cylinder block and place the cylinder head on wooden blocks on the workbench.

    3. Remove the cylinder head gasket (A).

  16. Remove the water temperature control unit (A) from the cylinder head.

Disassembly

  1. Remove the MLA (A).

  2. Remove the valves.

    1. Using SST (09222-3K000, 09222-3K100), compress the valve spring and remove the valve keepers.

    2. Remove the spring retainer.

    3. Remove the valve spring.

    4. Remove the valve.

    5. Using thin-tip pliers, remove the valve stem seal.

Inspection

Cylinder head cover

  1. Inspect for flatness.

    Using a precision straightedge and feeler gauge, measure the cylinder head and manifold contact surfaces for distortion.

    If the flatness exceeds the maximum, replace the cylinder head.

    Cylinder head gasket surface flatness

    Standard: Less than 0.05 mm (0.0019 in.) for overall area

    Less than 0.02 mm (0.0007 in.) for a 100 mm (3.9370 in.) x 100 mm (3.9370 in.) section

    Flatness of intake and exhaust manifold mounting surface

    Standard: Less than 0.10 mm (0.0039 in.)

  2. Inspect for cracks.

    Check the combustion chamber, intake ports, exhaust ports and cylinder block surface for cracks. If any cracks are found, replace the cylinder head.

Valve and Valve Spring

  1. Inspect the valve stems and valve guides.

    1. Using a caliper gauge, measure the inside diameter of the valve guide.

      Valve guide inside diameter

      Intake/Exhaust:

      5.500–5.512 mm (0.21654–0.21701 in)

    2. Using a micrometer, measure the diameter of the valve stem.

      Valve stem outside diameter

      Intake: 5.465–5.480 mm (0.21516–0.21575 in.)

      Exhaust: 5.458–5.470 mm (0.214988–0.21535 in.)

    3. Subtract the valve stem diameter measurement from the valve guide inside diameter measurement.

      Valve stem-to-guide clearance

      [Standard]

      Intake: 0.020–0.047 mm (0.00078–0.00185 in.)

      Exhaust: 0.030–0.054 mm (0.00118–0.00212 in.)

      If the clearance is greater than the maximum, replace the valve or cylinder head.

  2. Inspect the valves.

    1. Make sure the valve face is ground to the correct valve face angle.

    2. Check the valve face for wear.

      If the valve face is worn, replace the valve.

    3. Check the valve head margin thickness.

      Valve Head Margin Thickness

      [Standard]

      Intake: 1.02 mm (0.0401 in.)

      Exhaust: 1.09 mm (0.0429 in.)

      If the margin thickness is less than the minimum, replace the valve.

    4. Check the valve length.

      Valve Length

      [Standard]

      Intake: 113.18 mm (4.4559 in.)

      Exhaust: 105.79 mm (4.1650 in.)

      [Limit]

      Intake: 112.93 mm (4.4461 in.)

      Exhaust: 105.59 mm (4.1571 in.)

    5. Check the valve stem tip surface for wear.

      If the valve stem tip is worn, replace the valve.

  3. Inspect the valve seats.

    1. Check the valve seat for signs of overheating and improper contact with the valve face. If necessary, replace the cylinder head.

    2. Check the valve guide for wear. If the valve guide is worn, replace the cylinder head.

  4. Inspect the valve springs.

    1. Using a steel square, measure the valve spring squareness.

    2. Using a caliper gauge, measure the free length of the valve spring.

      Valve Spring

      [Standard]

      Free length: 47.44 mm (1.8677 in.)

      Out-of-square: Less than 1.5°

      If the free length is not within specification, replace the valve spring.

MLA (Mechanical Lash Adjuster)

  1. Inspect the MLA.

    Using a micrometer, measure the outside diameter of the MLA.

    MLA outside diameter: 31.964–31.980 mm (1.2584–1.2590 in.)

  2. Using a caliper gauge, measure the inside diameter of the MLA bore in the cylinder head.

    Lifter bore inside diameter: 32.000–32.025 mm (1.2598–1.2608 in.)

  3. Subtract the MLA outside diameter measurement from the lifter bore inside diameter measurement.

    MLA to Tappet Bore Clearance

    [Standard]: 0.020–0.061 mm (0.00078–0.00240 in.)

Installation

  1. Install the valves.

    1. Using SST (09222-4A000), install a new oil seal.

    2. Install the valve, valve spring and spring seat.

    3. Using the SST (09222-3K000, 09222-3K100), compress the spring and install the retainer locks. After installing the valves, make sure that the retainer locks are correctly installed before releasing the valve spring compressor.

    4. Lightly tap the end of each valve stem two or three times with a wooden hammer handle to ensure proper seating of the valve and retainer lock.

  2. Install the MLA after applying engine oil.

    Make sure the MLA rotates smoothly by hand.

Installation

  1. Install the water temperature control valve (A) to the cylinder head.

    Tightening Torque

    Bolts: 14.7–19.6 N·m

    Nuts: 19.6–24 N·m

  2. Install the cylinder head gasket.

    1. The sealant application areas on the cylinder head gasket and cylinder block must be free of engine oil, etc.

    2. Apply liquid gasket (Loctite 5900H or equivalent) to the cylinder block upper surface before installing the cylinder head gasket.

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

    3. Install the cylinder head gasket (A) on the cylinder block.

    4. Apply liquid gasket (Loctite 5900H or equivalent) to the upper surface of the cylinder head gasket after assembling the cylinder head gasket.

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

  3. Carefully install the cylinder head (A) so as not to damage the gasket with the lower end.

  4. Install the cylinder head bolts.

    1. Do not apply engine oil to the cylinder head bolts.

    2. Using SST (09221-4A000), tighten the cylinder head bolts and plate washers in several passes in the sequence shown.

    Tightening torque:

    32,4–36 N·m + 90–95° + 90 - 95°

  5. Install in the reverse order of removal.

Test yourself

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