Removal |
1. |
Remove the cylinder head cover.
(Refer to Cylinder Head Assembly - "Cylinder Head Cover") |
2. |
Set No.1 cylinder to TDC (Top dead center) on compression stroke.
|
3. |
Remove the timing chain cover.
(Refer to Timing System - "Timing Chain Cover") |
4. |
Remove the timing chain tensioner (A).
|
5. |
Remove the timing chain tensioner arm (A). |
6. |
Remove the timing chain (A). |
7. |
Remove the timing chain guide (A). |
Inspection |
1. |
Check the CVVT sprocket and crankshaft sprocket for abnormal wear, cracks, or damage. Replace if necessary. |
2. |
Inspect the tensioner arm and chain guide for abnormal wear, cracks, or damage. Replace if necessary. |
3. |
Check that the tensioner piston moves smoothly.
|
Installation |
1. |
The TDC marks of the intake and exhaust CVVT sprockets are
slightly turned from the TDC position as shown when the timing chain is
removed. |
2. |
Turn the crankshaft clockwise (about 2~3 pitches) from the
TDC position (the dowel pin (A) of crankshaft is about 3° with the
engine vertical line) as rotation of the intake CVVT sprocket from the
TDC position. |
3. |
Install the timing chain guide (A).
|
4. |
Install the timing chain tensioner arm (A).
|
5. |
Install the timing chain.
Crankshaft sprocket > Timing chain guide > Intake CVVT sprocket > Exhaust CVVT sprocket
|
6. |
Install the timing chain auto tensioner (A) and remove the stopper pin (B).
|
7. |
After rotating crankshaft 2 revolutions in regular direction
(clockwise viewed from front), confirm that the TDC marks on the intake
and exhaust CVVT sprockets are aligned with the top surface of cylinder
head. |
8. |
Install the other parts reverse order of removal. |
|
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