Removal And Installation: Installation

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.

Fig 1: Identifying Timing Chain & Associated Parts

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

NOTE:

The above figure shows the relationship between the mating mark on each timing chain and that on the corresponding sprocket, with the components installed.
Parts with an identification mark (R or L) should be installed on the corresponding bank according to the mark.

Parts with an identification mark:

Camshaft sprocket (INT)
Dowel pin groove of camshaft sprocket (EXH) (camshaft sprocket is same part both banks)
Chain tension guide
Chain slack guide
To install timing chain and associated parts, start with those on right bank. The procedure for installing parts on left bank is omitted because it is the same as that for installation on right bank.

Check that the crankshaft key and dowel pin of each camshaft are facing in the direction indicated. (No. 1 cylinder at compression TDC)
NOTE: Though camshaft does not stop at the position as shown in the figure, for the placement of cam nose, it is generally accepted camshaft is placed for the same direction of the figure.

Fig 2: Identifying Dowel Pin & Crankshaft Key
Courtesy of NISSAN MOTOR CO., U.S.A.
Install camshaft sprockets.
- Install onto correct side by checking with identification mark on surface.
- Install camshaft sprocket (EXH) by selectively using the groove of dowel pin according to the bank. (Common part used for both banks.)
  
  Fig 3: Identifying Camshaft Sprocket
  Courtesy of NISSAN MOTOR CO., U.S.A.
- Lock the hexagonal part of camshaft in the same way as for removal, and tighten fixing bolts.
Install crankshaft sprockets for both banks.
- Install each crankshaft sprocket so that its flange side (the larger diameter side without teeth) faces in the direction shown in figure.
  NOTE: The same parts are used but facing directions are different.
Fig 4: Installing Crankshaft Sprocket For Both Banks
Courtesy of NISSAN MOTOR CO., U.S.A.
Install timing chains and associated parts.

Fig 5: Installing Timing Chains & Associated Parts
Courtesy of NISSAN MOTOR CO., U.S.A.
- Align the mating mark on each sprocket and the timing chain for installation.
  CAUTION: For the above reason, after the mating marks are aligned, keep them aligned by holding them with a hand.
Before installing chain tensioner, it is possible to change the position of mating mark on timing chain for that on each sprocket for alignment.
- Install chain slack guides and chain tension guides onto correct side by checking with identification mark on surface.
- Install chain tensioner with plunger fixed as described in its removal.
CAUTION:
- Before and after the installation of chain tensioner, make sure that the mating mark on timing chain is not out of alignment.
- After installing chain tensioner, remove stopper pin to release tensioner. Check that tensioner is released.
- To avoid chain-link skipping of timing chain, never move crankshaft or camshafts until front cover is installed.
In the same way as for right bank, install timing chain and associated parts on left side.
Install oil pump assembly.
Install oil pump drive spacer as follows:
1. Insert oil pump drive spacer according to the directions of crankshaft key and the two flat surfaces of oil pump inner rotor.
  
  Fig 6: Installing Oil Pump Drive Spacer
  Courtesy of NISSAN MOTOR CO., U.S.A.
  - If the positional relationship does not allow the insertion, rotate oil pump inner rotor with a finger to allow the spacer.
2. After confirming that the position of each part is in correct condition to allow for the spacer, force fit the spacer by lightly tapping with a plastic hammer until it contacts and does not go further.
Install front oil seal onto front cover.
- Install new oil seal in the direction shown in the figure.
  
  Fig 7: Identifying New Oil Seal For Front Cover
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  CAUTION: Be careful not to scratch or make burrs on circumference of oil seal.
- Using the front oil seal drift (commercial service tool) or drift with 54 mm (2.13 in) diameter, force fit front oil seal until it levels with the front end surface of front cover.
Fig 8: Using Front Oil Seal Drift To Force Fit Front Oil Seal
Courtesy of NISSAN MOTOR CO., U.S.A.
Install chain tensioner cover onto front cover.
- Apply liquid gasket as shown in the figure.
  Use Genuine RTV Silicone Sealant or equivalent. Refer to RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS .
Install front cover as follows:

Fig 9: Installing Chain Tensioner Cover Onto Front Cover
Courtesy of NISSAN MOTOR CO., U.S.A.
1. Install new O-rings onto right and left cylinder heads and cylinder block.
  
  Fig 10: Installing New O-Rings
  Courtesy of NISSAN MOTOR CO., U.S.A.
2. Apply liquid gasket as shown in the figure.
  
  Fig 11: Applying Liquid Gasket To Surface
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Use Genuine RTV Silicone Sealant or equivalent. Refer to RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS .
3. Check again that the timing mating mark on timing chain and that on each sprocket are aligned. Then, install front cover.
  CAUTION: Be careful to avoid interference with the front end of oil pump drive spacer. Such interference may damage front oil seal.
4. Tighten fixing bolts in the numerical order shown in the figure.
  
  Fig 12: Tightening Fixing Bolts In Numerical Order
  Courtesy of NISSAN MOTOR CO., U.S.A.
  - There are four types of mounting bolts.
    
    Fig 13: Identifying Four Types Of Mounting Bolts
    Courtesy of NISSAN MOTOR CO., U.S.A.
5. After tightening, re-tighten to the specified torque.
  CAUTION: Be sure to wipe off any excessive liquid gasket leaking onto surface mating with oil pan.
Install intake valve timing control cover as follows:
1. At the back of intake valve timing control cover, install new seal rings (three for each bank) to the area to be inserted into camshaft sprocket (INT).
  CAUTION: Do not spread seal ring excessively to avoid breaks and deformation.
2. On the side of front cover, install new O-ring (one for each bank).
  
  Fig 14: Installing New O-Ring On Each Bank
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Apply liquid gasket as shown in the figure.
  
  Fig 15: Applying Liquid Gasket & Replacing Seal Rings
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Use Genuine RTV Silicone Sealant or equivalent. Refer to RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS .
4. Tighten fixing bolts in the numerical order shown in the figure.
  
  Fig 16: Tightening Fixing Bolts In Numerical Order
  Courtesy of NISSAN MOTOR CO., U.S.A.
Install intake valve timing control position sensor, intake valve timing control solenoid valve and camshaft position sensor (PHASE) to intake valve timing control cover and front cover.
- Be sure to tighten bolts with flanges completely seated.
Install crankshaft pulley as follows:
1. Fix crankshaft with ring gear stopper (SST: J-45476).
2. Install crankshaft pulley, taking care not to damage front oil seal.
  - Install according to dowel pin of oil pump drive spacer.
  - Lightly tapping its center with plastic hammer, insert pulley.
    CAUTION: Do not tap pulley on the side surface where belt is installed (outer circumference).
3. Apply engine oil onto threaded parts of bolts and seating areas.
4. Tighten crankshaft pulley bolt.
  : 93.1 N.m (9.5 kg-m, 69 ft-lb)
5. Select one most visible notch of the four on bolt flange. Corresponding to the selected notch, put a mating mark (such as paint) on crankshaft pulley.
6. Tighten further by 90 degrees. (Angle tightening)
  - Check the tightening angle by referencing to the notches. The angle between two notches is 90 degrees.
    
    Fig 17: Locating Visible Notches On Bolt Flange
    Courtesy of NISSAN MOTOR CO., U.S.A.
Rotate crankshaft pulley in normal direction (clockwise when viewed from engine front) to check for interference among parts.
Install in the reverse order of removal.
NOTE: If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in guide may generate a pounding noise during and just after engine start. However, this does not indicate an unusual condition. Noise will stop after hydraulic pressure rises.