Removal |
|
1. |
Shut off the high voltage circuit. (Refer to Engine Mechanical System - “High Voltage Shut off Procedure”) |
2. |
Remove the cylinder head cover. (Refer to Cylinder Head Assembly - "Cylinder Head Cover") |
3. |
Set No.1 cylinder to TDC (Top dead center) on compression stroke.
|
4. |
Remove the timing chain cover. (Refer to Timing System - "Timing Chain Cover") |
5. |
Remove the timing chain tensioner (A).
|
6. |
Remove the timing chain tensioner arm (A).
|
7. |
Remove the timing chain guide (A).
|
8. |
Remove the timing chain cam guide (A).
|
9. |
Remove the timing chain (A).
|
Inspection |
Sprockets, Chain Tensioner, Chain Guide, Chain Tensioner Arm
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. |
Install the timing chain. Crankshaft sprocket → Intake CVVT sprocket → Exhaust CVVT sprocket Install the timing chain with no slack between the crankshaft sprocket and the intake CVVT sprocket.
|
2. |
Install the timing chain cam guide (A).
|
3. |
Install the timing chain guide (A).
|
4. |
Install the timing chain tensioner arm (A).
|
5. |
Install the timing chain auto tensioner (A) and remove the stopper pin.
|
6. |
Install the timing chain cover. (Refer to Timing System - "Timing Chain Cover") |
7. |
Install the cylinder head cover. (Refer to Cylinder Head Assembly - "Cylinder Head Cover") |
8. |
Add all the necessary fluids and check for leaks. Connect KDS/GDS. Check for codes, note, and clear. Recheck.
|
Kia Niro 2017 (DE HEV) Service Manual: CVVT (Continuous Variable Valve Timing) System Repair procedures
Inspection
Variable Force Solenoind (VFS)
Refer to Engine Control / Fuel System - "Variable Force Solenoind (VFS)"
CVVT Oil Control Valve (OCV)
Refer to Engine Control / Fuel System - "CVVT Oil Control Valve (OCV)"
Removal
...
Kia Niro 2017 (DE HEV) Service Manual: Troubleshooting
Troubleshooting
Problem Symptoms Table
Before replacing or repairing air conditioning components, first determine if
the malfunction is due to the refrigerant charge, air flow or compressor.
Use the table below to find the cause of the problem. The numbers indicate the ...