LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 417 (Engine Cooling System) >> Water Pump >> Removal and Installation >> Removal

Removal and Installation: Removal

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove undercover.
  2. Drain coolant from radiator. Refer to CHANGING ENGINE COOLANT .
    CAUTION: Perform when the engine is cold.
    Fig 1: Surfaces Requiring Genuine RTV Or Equivalent
    G00876678Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Remove right-hand side engine cover.
  4. Remove coolant reservoir. Refer to "Figure".
  5. Remove IPDM E/R mounting bolts and position aside. Refer to "Removal and Installation of IPDM E/R ".
  6. Remove right-hand tire and splash shield.
  7. Remove drive belts. Refer to "Removal and Installation ".
  8. Remove idler pulley, then power steering and generator adjusting bars.
  9. Support engine and remove front engine insulator and bracket. Refer to "Removal and Installation ".
  10. Remove water drain plug on water pump side of cylinder block.
  11. Remove chain tensioner cover and water pump cover.
  12. Remove the chain tensioner assembly.
    1. Pull the lever down and release the plunger stopper tab.
    2. Insert the stopper pin into the tensioner body hole to hold the lever and keep the stopper tab released.
      NOTE: An Allen wrench [(2.5 mm (0.098 in)] is used for a stopper pin as an example.
      Fig 2: Pull The Lever Down And Release The Plunger Stopper Tab
      G00876679Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Insert the plunger into the tensioner body by pressing the timing chain slack guide.
    4. Keep the slack guide pressed and hold the plunger in by pushing the stopper pin deeper through the lever and into the tensioner body hole.
    5. Make a gap between water pump gear and timing chain, by turning the crankshaft pulley approximately 20° clockwise.
      Fig 3: Make A Gap Between Water Pump Gear And Timing Chain, By Turning The Crankshaft Pulley Approximately 20° Clockwise
      G00876680Courtesy of NISSAN MOTOR CO., U.S.A.
  13. .
    CAUTION: Be careful not to drop mounting bolts inside chain case.
    Fig 4: Remove Chain Tensioner
    G00876681Courtesy of NISSAN MOTOR CO., U.S.A.
  14. Remove the three water pump mounting bolts. Make a maximum gap between water pump gear and timing chain, by turning crankshaft pulley counterclockwise until timing chain loosens on water pump sprocket.
    Fig 5: Remove The Three Water Pump Mounting Bolts
    G00876682Courtesy of NISSAN MOTOR CO., U.S.A.
  15. Screw M8 bolts [pitch: 1.25 mm (0.49 in) length: approx. 50 mm (1.97 in)] into water pumps upper and lower mounting bolt holes until they reach the timing chain case. Then, alternately tighten each bolt for a half turn, and pull out the water pump.
    • Pull straight out while preventing vane from contacting socket in installation area.
    • Remove water pump without causing sprocket to contact timing chain.
  16. Remove M8 bolts and O-rings from water pump.
Fig 6: Screw M8 Bolts [Pitch: 1.25 mm (0.49 in) Length: Approx. 50 mm (1.97 in)] Into Water Pumps Upper And Lower Mounting Bolt Holes Until They Reach The Timing Chain Case To Aid In Pulling Water Pump Free
G00876683Courtesy of NISSAN MOTOR CO., U.S.A.
scientia non olet · About LEMON Manuals