Kia Optima: Installation - Injector. Repair procedures - Engine Control System - Engine Control/Fuel System - Kia Optima TF 2011-2018 Service ManualKia Optima: Installation

Do not reuse the injector retaining clip, O-ring, backup ring, washer seal or combustion sealring. Once an injector is removed, the five components must be replaced with new ones.

1. Combustion seal
2. Washer seal
3. Backup ring
4. O-ring
5. Retaining clip

Х Item 1,3 and 4 are supplied in a single kit.
Х Install the component with the specified torques.
Х Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.
Х Apply engine oil to the injector O-ring.
Х Do not reuse the delivery pipe mounting bolts. Once the delivery pipe is removed, the boltsmust be replaced with new ones.
Х When inserting the injector, be careful not to damage the injector tip.
Х When replacing the washer seal, the steal plate (A) part should be faced the cylinder installation part and the rubber plate (B) part should be faced the injector body part.

Х Do not reuse the combustion seal.
Х Be careful not to apply engine oil on the combustion seal ring.
Х Avoid dropping the fuel pipe (including injectors) or bumping it into any hard objects sincedamage to the internal components may occur. If necessary, visually inspect and confirmproper operation with performance tests prior to reuse.
Х Before installing the injector into the cylinder head, clean the injector hole and avoidcontaminants from entering inside the injector hole. When installing the injector, avoid bumpingthe injector tip into any of the surrounding components since the tip may become damagedfrom the impact.
Х When fastening the three fuel delivery pipemounting bolts, fully hand-tighten first, andthen tighten in the proper sequence (→ ) in several cycles up tothe specified→ ) in several cycles up tothe specifiedtorque. The delivery pipeshould move less than 1/8 inch (approx.3mm),) in several cycles up tothe specified torque. The delivery pipeshould move less than 1/8 inch (approx.3mm), whenever each bolt is tightened.

1. Installation is reverse of removal.


Removal
In case of removing the high pressure fuel pump, high pressure fuel pipe, delivery pipe, and injector, there may be injury caused by ...

Replacement
The injector combustion seal should be replaced new one to prevent leakage after removing the injector. 1. Remove the combustion seal (A) with a wire cutter. ...

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