Kia Optima: Installation - Camshaft. Repair procedures - Cylinder Head Assembly - Engine Mechanical System - Kia Optima TF 2011-2025 Service ManualKia Optima: Installation

1. Hold the timing chain, and place the intake CVVT & camshaft assembly.
2. Place the exhaust CVVT & camshaft assembly after releasing the ratchet of the timing chain tensioner.
The timing marks of each CVVT sprocket should be matched with timing marks (painted link) of timing chain when installing the timing chain.

3. Install the camshaft bearing caps in their proper locations.

Tightening order

Group A → Group B → Group C

Tightening torque

Step 1

M6 : 5.9N.m (0.6kgf.m, 4.3lb-ft)

M8 : 14.7N.m (1.5kgf.m, 10.8lb-ft)

Step 2

M6 : 10.8 ~ 12.7N.m (1.1 ~ 1.3kgf.m, 8.0 ~ 9.4lb-ft)

M8 : 27.5 ~ 31.4N.m (2.8 ~ 3.2kgf.m, 20.3 ~ 23.1lb-ft)

4. Install the service hole bolt (A).

Tightening torque :

11.8 ~ 14.7N.m (1.2 ~ 1.5kgf.m, 8.7 ~ 10.8lb-ft)


5. Turn the crankshaft two turns in the operating direction (clockwise), and then check that the TDC marks (A) of the CVVT sprockets are in straight line on the cylinder head surface.

6. Install the cylinder head cover. (Refer to Timing system in this group)

Removal
Timing chain cover removal is not required for this procedure. • Use fender covers to avoid damaging painted surf ...

Disassembly
1. Disassemble the CVVT assembly (A) and camshaft (B). When removing the CVVT assembly bol ...

See also:

Inspection
1. Ignition "OFF” 2. Disconnect the connector of mode control actuator. 3. Verify that the mode control actuator operates to the defrost mode w ...

Electrical System
1. Be sure to disconnect the battery cable from the negative (-) terminal of the battery. 2. Never pull on the wires when disconnecting connectors. ...

Removal
1. Loosen the drain plug, and drain the coolant. Remove the radiator cap to speed draining. 2. Disconnect the oil cooler coolant hoses (A). 3. ...

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