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Home >> Kia >> 2012 >> Optima SX >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel Delivery System - 2.0L >> Delivery Pipe >> Repair Procedures >> Installation
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Repair Procedures: Installation

CAUTION:
  • Install the component with the specified torques.
CAUTION:
  • Apply engine oil to the injector O-ring.
  • Do not use already used injector O-ring again.
CAUTION:
  • Do not reuse the bolts.
CAUTION:
  • When insert the injector, be careful not to damage the injector tip.
CAUTION:
  • Avoid dropping the fuel pipe (including injectors) or bumping it into any hard objects since damage to the internal components may occur. If necessary, visually inspect and confirm proper operation with performance tests prior to reuse.
  • Before installing the injector into the cylinder head, clean the injector hole and avoid contaminants from entering inside the injector hole. When installing the injector, avoid bumping the injector tip into any of the surrounding components since the tip may become damaged from the impact.
  • When fastening the three fuel delivery pipe mounting bolts, fully hand-tighten first, and then tighten in the proper sequence (1 → 2 → 3) in several cycles up to the specified torque. The delivery pipe should move less than 1/8 inch (approx. 3 mm), whenever each bolt is tightened.
Fig 1: Delivery Pipe Installation Bolts Tightening Sequence
G07385841Courtesy of KIA MOTORS AMERICA, INC.
  1. Installation is reverse of removal.

    Delivery pipe installation bolt: 

    18.6 ~ 23.5 N.m (1.9 ~ 2.4 kgf.m, 13.7 ~ 17.4 lb-ft)

    High pressure fuel pipe installation nut: 

    26.5 ~ 32.4 N.m (2.7 ~ 3.3 kgf.m, 19.5 ~ 23.9 lb-ft)