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Home >> Infiniti >> 2004 >> QX56 RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1200 (Engine Mechanical) >> Timing Chain >> Removal and Installation >> Removal

Removal and Installation: Removal

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the engine assembly from the vehicle. Refer to "REMOVAL ".
  2. Remove the following components and related parts:
  3. Remove the chain case cover (right bank) and (left bank).
    1. Loosen and remove the bolts in the reverse of order shown.
    2. Cut the liquid gasket and remove the covers using Tool.
      1. Tool number: KV10111100 (J-37228) 
      CAUTION: Do not damage mating surfaces.
    Fig 1: Removal Sequence Of Rocker Cover Bolts
    G02384435Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Obtain compression TDC of No. 1 cylinder as follows:
    1. Turn the crankshaft pulley clockwise to align the TDC identification notch (without paint mark) with the timing indicator on the front cover.
      Fig 2: Turning Crankshaft Pulley Clockwise To Align TDC Identification Notch (Without Paint Mark) With The Timing Indicator On Front Cover
      G02384436Courtesy of NISSAN MOTOR CO., U.S.A.
    2. At this time, make sure both intake and exhaust cam lobes of No. 1 cylinder (top front on left bank) point outside.
      • If they do not point outside, turn crankshaft pulley once more.
    Fig 3: Verifying Both Intake And Exhaust Cam Lobes Of No. 1 Cylinder (Top Front On Left Bank) Point Outside
    G02384437Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Remove the crankshaft pulley.
    1. Loosen the bolts using suitable tool.
      Fig 4: Loosening Bolts Using Suitable Tool
      G02384438Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Remove the crankshaft pulley from the crankshaft.
      • Remove the crankshaft pulley using suitable tool. Set the bolts in the two bolt holes [M6 x 1.0 mm (0.04 in)] on the front surface.
        NOTE: The dimension between the centers of the two bolt holes is 61 mm (2.40 in).
    Fig 5: Removing Crankshaft Pulley Using Suitable Tool, And Setting Bolts Into Bolt Holes On Front Surface
    G02384439Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Remove the front cover.
    1. Loosen and remove the bolts in the reverse of order shown.
    2. Cut the liquid gasket and remove the covers using Tool.
      1. Tool number: KV10111100 (J-37228) 
      CAUTION: Do not damage mating surfaces.
    Fig 6: Removal Sequence Of Front Cover Bolts
    G02384440Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Remove the front oil seal using suitable tool.
    CAUTION: Do not damage front cover.
  8. Remove the oil pump drive spacer.
    • Hold and remove the flat space of the oil pump drive spacer by pulling it forward.
    Fig 7: Holding And Removing The Flat Space Of Oil Pump Drive Spacer By Pulling Forward
    G02384441Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Remove the oil pump. Refer to "REMOVAL AND INSTALLATION ".
  10. Remove the chain tensioner on the left bank using the following steps.
    NOTE: To remove the timing chain and associated parts, start with those on the left bank. The procedure for removing parts on the right bank is omitted because it is the same as that for the left bank.
    1. Squeeze the return-proof clip ends using suitable tool and push the plunger into the tensioner body.
    2. Secure the plunger using stopper pin.
      • Stopper pin is made from hard wire approximately 1 mm (0.04 in) in diameter.
    3. Remove the bolts and chain tensioner.
      WARNING: Plunger, spring, and spring seat pop out when (squeezing) return-proof clip without holding plunger head. It may cause serious injuries. Always hold plunger head when removing.
      Fig 8: Removing Chain Tensioner
      G02384442Courtesy of NISSAN MOTOR CO., U.S.A.
      NOTE:
      • Stop the plunger in the fully extended position by using the return-proof clip 1 if the stopper pin is removed.
      • Push the plunger 2 into the tensioner body while squeezing the return-proof clip 1. Secure it using stopper pin 3.
    Fig 9: Pushing Plunger 2 Into Tensioner Body While Squeezing Return-Proof Clip 1, And Securing With Stopper Pin 3
    G02384443Courtesy of NISSAN MOTOR CO., U.S.A.
  11. Remove the chain tension guide and slack guide.
  12. Remove the timing chain and crankshaft sprocket.
  13. Loosen the camshaft sprocket bolts as shown and remove the camshaft sprocket.
    CAUTION: To avoid interference between valves and pistons, do not turn crankshaft or camshaft when timing chain is disconnected.
  14. Repeat the same procedure to remove the right timing chain and associated parts.
    Fig 10: Loosening Camshaft Sprocket Bolts And Removing Camshaft Sprocket
    G02384444Courtesy of NISSAN MOTOR CO., U.S.A.