Removal and Installation: Installation
WARNING: This page is about a different car, the 2003 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The below figure shows the relationship between the mating mark on each timing chain and that on the corresponding sprocket, with the components installed.
- Install RH and LH secondary timing chain tensioners to cylinder head as follows if removed. Refer to
"INSTALLATION ".
- Install secondary timing chain tensioners with stopper pin attached and new O-ring.
- Install No. 1 camshaft brackets. Refer to "INSTALLATION ".
- Install O-rings onto cylinder block.
- Install O-rings to cylinder head.
- Apply liquid gasket to rear timing chain case back side as shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS .
- Align the rear timing chain case and water pump assembly with the dowel pins (RH and LH) on the cylinder block and install the case.
- Make sure the O-rings stay in place during installation to cylinder block and cylinder head.
- Tighten the mounting bolts in the numerical order as shown.
- There are two bolt lengths used. Follow the below for proper bolt length specifications.
- Bolt length: Bolt position
- 20 mm (0.79 in): 1, 2, 3, 6, 7, 8, 9, 10
- 16 mm (0.63 in): Except the above
- Bolt length: Bolt position
- There are two bolt lengths used. Follow the below for proper bolt length specifications.
- After all bolts are temporarily tightened, retighten them to the specification in the numerical order as shown.
- If the RTV Silicone Sealant protrudes, wipe it off immediately.
- After installing rear timing chain case, check surface height difference between following parts on oil pan mounting surface.
- Standard
- Rear timing chain case to cylinder block:
- -0.24 to 0.14 mm (-0.0094 to 0.0055 in)
- Rear timing chain case to cylinder block:
- If not within standard, repeat above installation procedure.
- Standard
- Install chain tension guide.
- Position the crankshaft so No. 1 piston is set at TDC on the compression stroke.
- Make sure that the dowel pin hole, dowel pin and crankshaft key are located as shown.
NOTE: Though camshafts are not stopped at the positions as shown in the figure for the cam nose locations, it is appropriate in this step that camshafts are stopped at the basically same direction of the figure.- Camshaft dowel pin hole (intake side)
- : At cylinder head upper face side in each bank.
- Camshaft dowel pin (exhaust side)
- : At cylinder head upper face side in each bank.
- Crankshaft key
- : At cylinder head side of RH bank.
CAUTION: Hole on small dia. side must be used for intake side dowel pin hole. Do not misidentify (ignore big dia. side). - Install the timing chains (secondary) and camshaft sprockets.CAUTION: Matching marks between the timing chain and sprockets slip easily. Confirm all matching mark positions repeatedly during the installation process.
- Push the plunger of the secondary timing chain tensioner and keep it pressed in with a stopper pin.
- Install secondary timing chains and camshaft sprockets.
- Align the mating marks on the secondary timing chain (gold link) with the ones on the intake and exhaust sprockets (stamped), and install them.
NOTE:- Mating marks for the intake sprocket are on the back side of the secondary camshaft sprocket.
- There are two types of mating marks, circle and oval types. They should be used for the RH and LH banks, respectively.
- RH bank: use circle type.
- LH bank: use oval type.
- Align the dowel pin and pin hole on the camshaft with the groove and dowel pin on the sprocket, and install them.
- On the intake side, align the pin hole on the small diameter side of the camshaft front end with the dowel pin on the back side of the camshaft sprocket, and install them.
- On the exhaust side, align the dowel pin on the camshaft front end with the pin groove on the camshaft sprocket, and install them.
- In cases that positions of each mating mark and each dowel pin are not fit on mating parts, make fine adjustment to the position holding the hexagonal part of camshaft with a wrench or the equivalent.
- Mounting bolts for the camshaft sprockets must be tightened in the next step. Tightening them by hand is enough to prevent the dislocation of the dowel pins.
- It may be difficult to visually check the dislocation of mating marks during and after installation. To make the matching easier, make a mating mark on the top of sprocket teeth and its extended line in advance with paint.
- After confirming the mating marks are aligned, tighten the camshaft sprocket mounting bolts.
- Secure the camshaft using a wrench at the hexagonal portion to tighten the mounting bolts.
- Pull the stopper pins out from the secondary timing chain tensioners.
- Install the primary timing chain as follows:
- Install the crankshaft sprocket.
- Make sure the mating marks on the crankshaft sprocket face the front of the engine.
- Install the primary timing chain.
- Install primary timing chain so the mating mark (punched) on camshaft sprocket is aligned with the yellow link on the timing chain, while the mating mark (notched) on the crankshaft sprocket is aligned with the orange one on the timing chain, as shown.
- When it is difficult to align mating marks of the primary timing chain with each sprocket, gradually turn the camshaft using a wrench on the hexagonal portion to align it with the mating marks.
- During alignment, be careful to prevent dislocation of mating mark alignments of the secondary timing chains.
- Install the crankshaft sprocket.
- Install the internal chain guide and slack guide.
- Do not overtighten the slack guide mounting bolts. It is normal for a gap to exist under the bolt seats when the mounting bolts are tightened to specification.
- Install chain tensioner for slack guide.
- When installing the chain tensioner, push in the sleeve and keep it pressed in with the stopper pin.
- Remove any dirt and foreign materials completely from the back and the mounting surfaces of the chain tensioner.
- After installation, pull out the stopper pin by pressing the slack guide.
- Reconfirm that the mating marks on the sprockets and the timing chain have not slipped out of alignment.
- Install new O-rings on the rear timing chain case.
- Install the front oil seal on the front timing chain case.
- Apply new engine oil to both oil seal lip and dust seal lip.
- Install it so that each seal lip is oriented as shown in figure.
- Using a suitable drift, press-fit oil seal until it becomes flush with front timing chain case end face.
- Make sure the garter spring is in position and seal lip is not inverted.
- Install the water pump cover and the chain tensioner cover to front timing chain case.
- Apply a continuous bead of liquid gasket with tube presser [special service tool: WS39930000 ( - )] to front timing chain case as shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS .
- Apply a continuous bead of liquid gasket with tube presser [special service tool: WS39930000 ( - )] to front timing chain case as shown in the figure.
- Install front timing chain case as follows:
- Apply a continuous bead of liquid gasket with tube presser [special service tool: WS39930000 ( - )] to front timing chain case back side as shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS .
- Install dowel pin on the rear timing chain case into dowel pin hole on front timing chain case.
- Tighten bolts to the specified torque in order shown in the figure.
- 8 mm (0.31 in) dia. bolts: 1, 2
- : 25.5 - 31.3 N.m (2.6 - 3.2 kg-m, 19 - 23 ft-lb)
- 6 mm (0.24 in) dia. bolts: Except the above
- : 11.7 - 13.7 N.m (1.2 - 1.4 kg-m, 9 - 10 ft-lb)
- 8 mm (0.31 in) dia. bolts: 1, 2
- After tightening, retighten them to specified torque in numerical order shown in figure.CAUTION: Be sure to wipe off any excessive liquid gasket leaking on surface mating with oil pan (upper).
- Apply a continuous bead of liquid gasket with tube presser [special service tool: WS39930000 ( - )] to front timing chain case back side as shown in the figure.
- After installing the front timing chain case, check the surface height difference between the following parts on the oil pan mounting surface.
- Standard
- Front timing chain case to rear timing chain case
- : -0.14 to 0.14 mm (-0.005 to 0.0055 in)
- Front timing chain case to rear timing chain case
- If not within specification, repeat the installation procedure.
- Standard
- Install RH and LH intake valve timing control covers as follows:
- Install seal rings in shaft grooves.
- Apply a continuous bead of liquid gasket with tube presser [special service tool: WS39930000 ( - )] to intake valve timing control covers as shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS .
- Install collared O-ring in the oil hole of the front timing chain case (LH and RH sides).
- Being careful not to move the seal ring from the installation groove, align the dowel pins on the front timing chain case with the holes to install the intake valve timing control covers.
- Tighten bolts in the numerical order as shown.
- Install crankshaft pulley as follows:
- Fix crankshaft using ring gear stopper [special service tool: KV10117700 (J44716)].
- Install crankshaft pulley, taking care not to damage front oil seal.
- When press-fitting crankshaft pulley with a plastic hammer, tap on its center portion (not circumference).
- Tighten bolt to 39.2 to 49.0 N.m (4.0 to 5.0 kg-m, 29 to 36 ft-lb)
- Put a paint mark on crankshaft pulley aligning with angle mark on crankshaft pulley bolt. Then, further retighten bolt by 60 to 66 degrees [Target: 60 degrees (equivalent to one graduation)].
- Rotate crankshaft pulley in normal direction (clockwise when viewed from front) to confirm it turns smoothly.
- For the following operations, perform steps in the reverse order of removal.
NOTE: If hydraulic pressure inside chain tensioner drops after removal/installation, slack in the guide may generate a pounding noise during and just after engine start. However, this does not indicate an unusualness. Noise will stop after hydraulic pressure rises.