Removal |
|
Mark all wiring and hoses to avoid misconnection. |
|
1. |
Shut off the High Voltage circuit. (Refer to General Information - "High Voltage Shutoff 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. (Refer to Timing System - "Timing Chain") |
5. |
Remove the intake CVVT assembly (A) and exhaust CVVT assembly (B).
|
6. |
Remove the camshaft.
|
Inspection |
Camshaft
1. |
Inspect the cam lobes. Using a micrometer, measure the cam lobe height. If the cam lobe height is less than specification, replace the camshaft.
|
2. |
Check the surface of the camshaft journal for wear. If the journal is worn excessively, replace the camshaft. |
3. |
Inspect the camshaft journal clearance.
|
4. |
Inspect the camshaft end play.
|
Continuous variable valve timing (CVVT) Assembly
1. |
Clamp the camshaft using a vise. Be careful not to damage the cam lobes and journals in the vise. |
2. |
Rotate the CVVT clockwise and counterclockwise to make sure that it is locked. It must not rotate. |
3. |
Intake CVVT : Seal one of the two advance holes in the camshaft journal with tape. Exhaust CVVT : Seal one of the two retard holes in the camshaft journal with tape.
|
4. |
Intake CVVT : Apply approx. 150 kPa (1.5 kgf/cm², 21 psi) of compressed air into the unsealed advance hole to release the lock. Exhaust CVVT : Apply approx. 150 kPa (1.5 kgf/cm², 21 psi) of compressed air into the unsealed retard hole to release the lock.
|
5. |
Intake CVVT : With compressed air applied, rotate the CVVT in the advance direction (counterclockwise) within its phasing range and check that the CVVT turns smoothly. Exhaust CVVT : With compressed air applied, rotate the CVVT in the retard direction (clockwise) and check that the CVVT turns smoothly.
|
6. |
Intake CVVT : Rotate the CVVT into the most retarded position (clockwise) and then check that the CVVT is locked. Exhaust CVVT : Rotate the CVVT into the most advanced position (counterclockwise) and then check that the CVVT is locked. |
Installation |
1. |
Install the camshaft.
|
2. |
Install the intake CVVT assembly (A) and exhaust CVVT assembly (B).
|
3. |
Install in the reverse order of removal. |
Kia Niro 2017 (DE HEV) Service Manual: Blower Unit Components and components location
Component Location
1. Blower unit assembly
Components
1. Blower Intake Seal
2. Intake Duct Case [Upper]
3. Intake Door Assembly
4. Intake Duct Case [Lower]
5. Air Filter Cover
6. Intake Actuator
...
Kia Niro 2017 (DE HEV) Service Manual: Climate Control Air Filter Repair procedures
Filter inspection
The climate control air filter should be replaced according to the maintenance
schedule.
If the vehicle is operated in severely air-polluted cities or on dusty rough
roads for a long period, it should be inspected more frequently and replaced earlier.
When rep ...