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 (DE HEV) Owners Manual: Smart cruise control will be temporarily canceled when
Cancelled manually
The smart cruise control is temporarily canceled when the brake pedal is depressed
or the CANCEL button is pressed. The speed and vehicle to vehicle distance indicator
on the cluster is disappeared and the CRUISE indicator is illuminated continuously.
Cancelled automatical ...
Kia Niro 2017 (DE HEV) Service Manual: Components and components location
Components
1. Pressure Source Unit (PSU)
2. Integrated Brake Actuation Unit (IBAU)
3. Front wheel speed sensor
4. Rear wheel speed sensor
...