Kia Rio: Ignition System / Spark Plug

Kia Rio 2017-2024 YB Service Manual / Engine Electrical System / Ignition System / Spark Plug

Specifications
Specification

Item
Specification
Type
SILKR6C10E
Gap
0.9 - 1.0 mm
(0.0354 - 0.0394in.)
Electrode Material
Iridium

Description and operation
Description

A spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture therein by means of an electric spark, while containing combustion pressure within the engine. A spark plug has a metal threaded shell, electrically isolated from a central electrode by a porcelain insulator.

Repair procedures
Inspection
[On vehicle inspection]
1.

Accelerate the engine to about 3,000 rpm 3 times or more.

2.

Remove the spark plug.

3.

Check the spark plug visually.

If the electrode is dry, the spark plug is normal.

If the electrode is wet, check the damage and electrode gap as below.

[Component Inspection]
1.

Check the spark plug for any damage on its thread and insulator.

If there is damage, replace the spark plug.

2.

Check the electrode. Measure the insulation resistance with an ohmmeter.

If the resistance is less than the specified value, adjust the electrode gap.

Specification: 10 MΩ or more

3.

Check the spark plug electrode gap.

If the gap is greater than the maximum, replace the spark plug.

Specification: 0.9 - 1.0 mm (0.0354 - 0.0394in.)

  

If adjusting the gap of a new spark plug, bend only the base of the ground electrode. Do not touch the tip.

Never attempt to adjust the gap on a used plug.

Cleaning

The combustion temporarily becomes unstable, due to the aged fuel and the carbon deposits accumulated on the spark plug(s) after long-term storage.

[1st Method]
1.

Start the engine and keep the engine running at idle for 2 minutes.

2.

Step on the accelerator pedal and hold it steady at 4500 rpm with the shift lever in N position to warm up  the engine until the temperature of the engine coolant reaches 80°C.

3.

Keep the engine running at 2500 - 3000 rpm in the N position for 15 minutes.

[2nd Method]
  

The 2nd method should be performed only if the 1st method fails (the misfire-related codes recur).

1.

Start the engine and keep the engine running at idle for 2 minutes.

2.

Drive the vehicle for over 20 minutes, keeping the engine speed above 3500 rpm.

  

If equipped with manual transaxle, shift the gear properly for keeping the engine speed above 3500 rpm.

Removal
1.

Remove the ignition coil.

(Refer to Ignition System - "Ignition Coil")

2.

Using a spark plug wrench, remove the spark plug (A).

Tightening torque:

14.7 - 24.5 N·m (1.5 - 2.5 kgf·m, 10.8 - 18.0 Ib·ft)

  

Be careful that no contaminates enter into spark plug holes.

Installation
1.

Install in the reverse order of removal.

Ignition Coil
Specifications Specification Item Specification Rated Voltage (V) 12 Operation Voltage (V) 5 - 16 ...

Starting System
Description and operation Description The starting system includes the battery, starter, solenoid switch, ignition switch, inhibitor switch (A/T), clutch pedal switch (M/T), ignition l ...

Other information:

Kia Rio 2017-2024 YB Owners Manual: Explanation of scheduled maintenance items


Engine oil and filter The engine oil and filter should be changed at the intervals specified in the maintenance schedule. If the vehicle is being driven in severe conditions, more frequent oil and filter changes are required. Drive belts Inspect all drive belts for evidence of cuts, cracks, e ...

Kia Rio 2017-2024 YB Owners Manual: Instrument panel overview


1. Instrument cluster 2. Horn 3. Driver’s front air bag 4. Light control/Turn signals 5. Wiper/Washer 6. Ignition switch ENGINE START/STOP button 7. Hazard warning flasher switch 8. Audio 9. Central door lock switch 10. Climate control system 11. AUX, USB port 12. Manual Transmission ...

Copyright © www.krioyb.com 2017-2024