Kia Optima: Removal
Timing chain cover removal is not required for this procedure.
| • |
Use fender covers to
avoid damaging painted surfaces. |
| • |
To avoid damaging the
cylinder head, wait until the engine coolant temperature drops below
normal temperature before removing it. |
| • |
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. |
| • |
Turn the crankshaft pulley
so that the No. 1 piston is at top dead center. |
|
|
In case of removing the high pressure fuel pump, high pressure fuel pipe,
delivery pipe, and injector, there may be injury caused by leakage of the
high pressure fuel. So don’t do any repair work right after engine stops. |
| 1. |
Remove the cylinder head cover.
(Refer to Timing system in this group) |
| 2. |
Set No.1 cylinder to TDC/compression.
| (1) |
Turn the crankshaft pulley
and align its groove with the timing mark "T" of the lower timing
chain cover.
|
| (2) |
Check that the TDC marks
(A) of the CVVT sprockets are in straight line on the cylinder head
surface as shown in the illustration. If not, turn the crankshaft
one revolution (360°).
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|
| 3. |
Mark the timing chains (A) corresponding
to the timing marks of the CVVT sprockets.
|
| 4. |
Turn the crankshaft pulley 15°
clockwise. |
| 5. |
Remove the service hole bolt
(A) of the timing chain cover.
|
The bolt must not be reused once it has been assembled. |
|
| 6. |
Remove the intake and exhaust
camshaft bearing caps. |
| 7. |
Release the ratchet of the timing
chain tensioner by pulling the link down using a thin rod.
|
| 8. |
After loosening the timing chain,
remove the exhaust CVVT & camshaft assembly (A) and then the intake CVVT
& camshaft assembly (B).
|
When taking off the timing chain from the CVVT sprockets, hold the
timing chain. |
|
| 9. |
Tie down timing chain so that
it doesn't move.
|
Be careful not to drop anything inside timing chain cover. |
|
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 timi ...
Installation