Kia Optima: Cylinder Head Assembly / Cylinder Head Cover
Components and components location
1. Cylinder head cover
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2. Cylinder head cover gasket
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Repair procedures
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Use fender covers to avoid damaging painted surfaces.
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To avoid damage, unplug the wiring connectors carefully while
holding the connector portion.
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Mark all wiring and hoses to avoid misconnection.
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| 1. |
Remove the engine cover.
(Refer to Engine and Transaxle Assembly - "Engine Cover")
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| 2. |
Disconnect the battery negative terminal.
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| 3. |
Disconnect the wiring connectors and harness clamps and remove the connector
brackets around the cylinder head cover.
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| 4. |
Remove the air cleaner assembly.
(Refer to Intake and Exhaust System - "Air Cleaner")
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| 5. |
Remove the ignition coils.
(Refer to Engine Electrical System - “Ignition Coil”)
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| 6. |
Remove the engine oil level gauge.
(Refer to Lubrication System - “Oil Level Gauge & Pipe”)
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| 7. |
Disconnect the positive crankcase ventilation (PCV) hose (A).
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| 8. |
Remove the cylinder head cover (A).
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Unfasten the bolts in the sequence as shown.
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| 1. |
Install cylinder head cover.
| (1) |
The hardening sealant located on the cylinder head cover and
the gap between the timing chain cover and the cam carrier should
be removed before assembling cylinder head cover.
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| (2) |
Apply engine oil on the lip portion of the oil seal on the cover
and outer surface of the spark plug pipes.
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| (3) |
After applying sealant on the gap between the timing chain cover
and the cam carrier, it should be assembled within 5 minutes.
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Bead width : 2.0 - 3.0 mm (0.08 - 0.12 in.)
Sealant : Threebond 1217H or equivalent
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| (4) |
Install the cylinder head cover by tightening the bolts, in several
passes, in the sequence as shown.
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Tightening torque
1st step :
3.9 - 5.9 N•m (0.4 - 0.6 kgf•m, 2.9 - 4.3 lb•ft, 34.5
- 52.1 Ib•in)
2nd step :
7.8 - 9.8 N•m (0.8 - 1.0 kgf•m, 5.8 - 7.2 lb•ft)
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| •
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Do not reuse cylinder head cover gasket.
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| •
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Before installing the cylinder head cover, make sure
the cylinder head cover gasket is not separated from the
cylinder head cover gasket groove.
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| •
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The engine running or pressure test should not be performed
within 30 minutes after the cylinder head cover was assembled.
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| 2. |
Install the other parts reverse order of removal.
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Components and components location
Components
1. Camshaft bearing cap
2. Camshaft front bearing cap
3. Exhaust camshaft
4. Intake camshaft
5. Exhaust CVV ...
Components and components location
Components
1. Camshaft bearing cap
2. Camshaft front bearing cap
3. Exhaust camshaft
4. Intake camshaft
5. Exhaust CVV ...
Other information:
• Go to “User Settings → Driving Assist and select Rear Cross Traffic Collision
Warning” on the LCD display.
The system will turn on and standby to activate. If you deactivate this function
in the cluster, the system will stop.
❈For more information, refer to “LCD Display” in cha ...
Repair procedures
Replacement
[Rear door side weatherstrip]
1.
Loosen the rear door checker (B) mounting bolt.
Tightening torque :
21.6 - 31.4 N.m (2.2 - 3.2 kgf.m,15.9 - 23.1 lb-ft)
2.
Deta ...
Cylinder Head Assembly
CVVT & Camshaft