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Removal And Installation: Removal

WARNING: This page is about a different car, the 2004 Infiniti M45 and 2003 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove engine assembly from vehicle. Refer to REMOVAL AND INSTALLATION .
  2. Remove the following components and related parts:
  3. If necessary, remove intake valve timing control position sensor (right and left) and camshaft position sensor (PHASE) from intake valve timing control cover and front cover.
    Fig 1: Identifying Intake Valve Timing Control Sensor & Camshaft Position Sensor
    G00796858Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • Handle components and parts carefully to avoid dropping and shocks.
    • Do not disassemble.
  4. If necessary, remove intake valve timing control solenoid valve from intake valve timing control cover.
    CAUTION:
    • Handle components and parts carefully to avoid dropping and shocks.
    • Do not disassemble.

  5. Remove intake valve timing control cover as follows:
    1. Loosen and remove fixing bolts in reverse order of that shown in figure.
      Fig 2: Removing Intake Valve Control Cover Fixing Bolts
      G00796859Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Use the seal cutter [SST: KV10111100 (J37228)] or the equivalent to cut liquid gasket for removal.
      CAUTION:
      • Be careful not to damage mating surfaces.
      • Pull out cover keeping levelness without an angle, as inner part of cover is engaged with the center of camshaft sprocket (INT).
  6. Remove O-rings from front cover.
    Fig 3: Removing O-Rings From Front Cover
    G00796860Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Obtain compression TDC of No. 1 cylinder as follows:
    1. Turn crankshaft pulley clockwise to align the TDC identification notch (without paint mark) with timing indicator on front cover.
      Fig 4: Identifying TDC Identification Marks
      G00796861Courtesy of NISSAN MOTOR CO., U.S.A.
    2. At this time, make sure the both intake and exhaust cam noses of No. 1 cylinder (top front on left bank) face outside.
      • If they do not face outside, turn crankshaft pulley by 360 degrees once more.
        Fig 5: Ensuring Both Intake & Exhaust Cam Noses Face Outside
        G00796862Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Remove crankshaft pulley as follows:
    1. Remove rear plate cover. Refer to OIL PAN AND OIL STRAINER .
    2. Set the ring gear stopper (SST).
    3. Loosen crankshaft pulley bolt.
    4. Pull crankshaft pulley with both hands to remove it.
      CAUTION:
      • Do not remove fixing bolts. Keep loosened fixing bolts in place to protect removed crankshaft pulley from dropping.
      • Do not remove balance weight (inner hexagon bolt) at the front of crankshaft pulley.
    Fig 6: Setting Ring Gear Stopper (SST)
    G00796863Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Remove oil pan and oil strainer. Refer to OIL PAN AND OIL STRAINER .
  10. Remove front cover as follows:
    1. Loosen and remove fixing bolts in reverse order of that shown in figure.
      Fig 7: Loosening Fixing Bolts In Reverse Order
      G00796864Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Use the seal cutter [SST: KV10111100 (J37228)] or the equivalent to cut liquid gasket for removal.
      CAUTION: Be careful not to damage mating surfaces.
  11. Remove front oil seal from front cover using suitable tool.
  12. Remove O-rings from cylinder heads (right and left bank) and cylinder block.
    Fig 8: Removing O-Rings From Cylinder Heads & Cylinder Block
    G00796865Courtesy of NISSAN MOTOR CO., U.S.A.
  13. Remove chain tensioner cover from front cover.
    • Use seal cutter [SST: KV10111100 (J37228)] or equivalent tool to cut liquid gasket for remove.
  14. Remove oil pump drive spacer.
      Fig 9: Removing Oil Pump Drive Spacer
      G00796866Courtesy of NISSAN MOTOR CO., U.S.A.
    • Install bolts into two bolt holes [M6 x pitch 1.0 mm (0.04 in.)] on front surface. Using a small puller, pull spacer off from crankshaft.
      NOTE:
      • The center-to-center dimension between the two bolt holes is 33 mm (1.30 in).
  15. Remove oil pump. Refer to REMOVAL AND INSTALLATION .
  16. Remove chain tensioner (left bank) as follows:

    To remove timing chain and associated parts, start with those on left bank. The procedure for removing parts on right bank is omitted because it is the same as that for left bank.

    1. Press tab in the direction of arrow (or turn lever in the direction of arrow) to unlock the locking with the groove that stops tensioner plunger from returning.
      • Lightly press tensioner plunger to release the tension of spring for this operation.
    2. Push in tensioner plunger to align the hole on lever and that on pump main body.
      • Pushing in tensioner plunger too far does not allow the holes to align. Therefore, push in the tensioner plunger to the degree at which the start of stopper groove and tab engages.
    3. Insert stopper pin [hard wire with approx. 0.5 mm (0.020 in) diameter or a similar tool] to fix plunger. With the plunger fixed, remove chain tensioner.
    Fig 10: Preparing To Remove Timing Chain & Associated Parts
    G00796867Courtesy of NISSAN MOTOR CO., U.S.A.
  17. Remove chain tension guide and chain slack guide.
  18. Remove timing chain and crankshaft sprocket.
    CAUTION: To avoid interference between valves and pistons, do not turn crankshaft or camshaft with timing chain is disconnected.
  19. With hexagonal part of camshaft locked with wrench, loosen bolts securing camshaft sprocket to remove camshaft sprocket.
    Fig 11: Using Camshaft Hexagon Part To Loosen Bolts
    G00796868Courtesy of NISSAN MOTOR CO., U.S.A.
  20. Using the same procedure as for left bank, remove timing chain and associated parts on right side.
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