Kia Optima: Installation

1.	Hold the timing chain, and place the intake CVVT & camshaft assembly.

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.

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)

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)

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

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

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