Oil Pump: Assembly

WARNING: This page is about a different car, the 2003 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Drive oil seal into oil pump housing.
- Apply ATF to outer periphery and lip surface.
  
  Fig 1: Driving Oil Seal Into Oil Pump Housing
  Courtesy of NISSAN MOTOR CO., U.S.A.
Install cam ring in oil pump housing by the following
1. Install side seal on control piston.
  - Pay attention to its direction - Black surface goes toward control piston.
  - Apply petroleum jelly to side seal.
2. Install control piston on oil pump.
  
  Fig 2: Installing Control Piston On Oil Pump
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Install O-ring and friction ring on cam ring.
  - Apply petroleum jelly to O-ring.
    
    Fig 3: Installing O-Ring And Friction Ring On Cam Ring
    Courtesy of NISSAN MOTOR CO., U.S.A.
4. Assemble cam ring, cam ring spring and spring seat. Install spring by pushing it against pump housing.
  
  Fig 4: Assembling Cam Ring, Cam Ring Spring And Spring Seat
  Courtesy of NISSAN MOTOR CO., U.S.A.
5. While pushing on cam ring install pivot pin.
  
  Fig 5: Installing Pivot Pin
  Courtesy of NISSAN MOTOR CO., U.S.A.
Install rotor, vanes and vane rings.
- Pay attention to direction of rotor.
  
  Fig 6: Installing Rotor, Vanes And Vane Rings
  Courtesy of NISSAN MOTOR CO., U.S.A.
Install oil pump housing and oil pump cover.
1. Wrap masking tape around splines of oil pump cover assembly to protect seal. Position oil pump cover assembly in oil pump housing assembly, then remove masking tape.
2. Tighten bolts in a criss-cross pattern.
  
  Fig 7: Tightening Sequence Of Oil Pump Housing Bolts
  Courtesy of NISSAN MOTOR CO., U.S.A.
Install new seal rings carefully after packing ring grooves with petroleum jelly. Press rings down into jelly to a close fit.
- Seal rings come in two different diameters. Check fit carefully in each groove.
  Small dia. seal ring: No mark
  
  Large dia. seal ring: Yellow mark in area shown by arrow
- Do not spread gap of seal ring excessively while installing. It may deform ring.
  
  Fig 8: Identifying Small And Large Dia Seal Ring
  Courtesy of NISSAN MOTOR CO., U.S.A.