Removal And Installation

Fig 1: Removing Fuel Tube Assemblies In Numerical Sequence

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Removing Injector

Courtesy of NISSAN MOTOR CO., U.S.A.

Extract fuel injectors straight from fuel tubes.
- Be careful not to damage injector nozzles during removal.
- Do not bump or drop fuel injectors.
Carefully install O-rings.
- Lubricate O-rings with a smear of engine oil.
- Be careful not to damage O-rings with service tools, finger nails or clips. Do not expand or twist O-rings.
- Discard old clips; replace with new ones.
Position clips in grooves on fuel injectors.
- Make sure that protrusions of fuel injectors are aligned with cutouts of clips after installation.
  
  Fig 3: Removing Fuel Damper
  Courtesy of NISSAN MOTOR CO., U.S.A.
Align protrusions of fuel tubes with those of fuel injectors. Insert fuel injectors straight into fuel tubes.
After properly inserting fuel injectors, check to make sure that fuel tube protrusions are engaged with those of fuel injectors, and that flanges of fuel tubes are engaged with clips.
Tighten fuel tube assembly mounting nuts in numerical sequence (indicated in Fig 4 ) and in two stages.

Fig 4: Tightening Order Of Fuel Tube Mounting Bolt
Courtesy of NISSAN MOTOR CO., U.S.A.

: Tightening torque N.m (kg-m, ft-lb)

1st stage:

9.3 - 10.8 (1.0 - 1.1, 6.9 - 7.9)

2nd stage:

20.6 - 26.5 (2.1 - 2.7, 16 - 19)
Install all parts removed in reverse order of removal.
CAUTION: After properly connecting fuel tube assembly to injector and fuel hose, check connection for fuel leakage.