INSTALL CAMSHAFT TIMING GEAR ASSEMBLY
Clamp the camshaft in a vise.
Note
Be careful not to damage the camshaft in the vise.
| *1 | Pin Hole |
| *2 | Straight Pin |
Put the camshaft timing gear assembly and camshaft together by aligning the pin hole and straight pin.
Lightly press and turn the camshaft timing gear assembly against the camshaft, and press harder after the pin enters the hole.
Note
Be sure not to turn the camshaft timing gear assembly in the retard direction.
Check that there is no clearance between the camshaft timing gear assembly flange and camshaft.
Install the flange bolt while holding the camshaft.
Check the lock of the camshaft timing gear assembly.
Secure the camshaft in place and confirm that the camshaft timing gear assembly is locked.
Note
Be careful not to damage the camshaft.
INSTALL CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
Clamp the camshaft in a vise.
Note
Be careful not to damage the camshaft in the vise.
| *1 | Pin Hole |
| *2 | Straight Pin |
Put the camshaft timing exhaust gear assembly and camshaft together by aligning the pin hole and straight pin.
Lightly press and turn the camshaft timing gear assembly against the camshaft, and press harder after the pin enters the hole.
Note
Be sure not to turn the camshaft timing exhaust gear in the advanced direction.
Check that there is no clearance between the gear flange and camshaft.
Install the flange bolt while holding the camshaft.
Check the camshaft timing exhaust gear lock.
Make sure that the camshaft timing exhaust gear assembly locks.
INSTALL NO. 3 CAMSHAFT SUB-ASSEMBLY
Check that the notch is aligned with the "0" timing mark of the timing chain cover.
| *1 | Timing Mark |
| *2 | Mark Plate (yellow) |
Align the mark plate (yellow) with the timing mark of the camshaft timing gear as shown in the illustration and install the No. 2 chain to the camshaft timing gear.
Clean the camshaft housing LH and camshaft journals, and apply engine oil to them.
| *1 | Valve Rocker Arm |
| *2 | Lash Adjuster |
| *3 | Valve Stem |
| *4 | Valve Stem Cap |
Make sure that the No. 1 valve rocker arm sub-assembly is installed as shown in the illustration.
| *a | Place on camshaft timing gear |
Install the chain to the No. 3 camshaft, and then install the camshaft to the camshaft housing LH.
Tech Tips
Place the chain on the camshaft timing gear but do not engage the teeth of the sprocket and the chain.
Install the camshaft so that the timing mark is facing upward.
INSTALL NO. 4 CAMSHAFT SUB-ASSEMBLY
Clean the camshaft housing LH and camshaft journals, and apply engine oil to them.
| *1 | Mark Plate (yellow) |
| *2 | Timing Mark |
Pass the No. 4 camshaft through the No. 2 chain from the front of the vehicle, align the mark plate (yellow) with the timing mark and install the No. 2 chain to the camshaft timing exhaust gear.
While lifting up the No. 4 camshaft, pass the No. 3 chain tensioner assembly through the No. 2 chain and set it in place.
Install the No. 4 camshaft to the camshaft housing LH, and then install the No. 3 chain tensioner assembly with the bolt.
INSTALL CAMSHAFT BEARING CAP (for Bank 2)
Clean the camshaft bearing caps and apply engine oil to them.
| *1 | Valve Rocker Arm |
| *2 | Lash Adjuster |
| *3 | Valve Stem |
| *4 | Valve Stem Cap |
Make sure that the No. 1 valve rocker arm sub-assembly is installed as shown in the illustration.
| *1 | Service Bolts and Washers (used to temporarily secure the camshaft housing) |
| *a | Remove the service bolts and washers used to temporarily secure the camshaft housing |
| *b | Part to be Installed |
|
Bolt A |
|
Bolt B |
Check the marks and numbers on the camshaft bearing caps, and then remove the service bolts and washers in the order shown in the illustration. Immediately after removing the service bolts and washers in the locations for the bearing caps, install the bearing caps with the bolts in the order shown in the illustration.
Note
Be sure to follow the numerical order when performing this procedure.
Do not drop the service bolts and washers into the cylinder head.
Check the torque of each bolt again.
INSTALL CHAIN SUB-ASSEMBLY
| *1 | Paint Mark |
Align the paint marks on the camshaft timing gear and No. 1 chain, and install the No. 1 chain to the camshaft timing gear.
Tech Tips
If the paint marks are not aligned, align them by turning the camshaft slightly.
INSTALL CAMSHAFT
| *a | 5 to 10° |
Turn the crankshaft clockwise until it is in the position shown in the illustration so that the chain can be installed easily.
Tech Tips
When turning the crankshaft, engine oil may spray out of the oil holes.
| *1 | Timing Mark |
| *2 | Mark Plate (yellow) |
Align the mark plate (yellow) with the timing mark of the camshaft timing gear as shown in the illustration and install the No. 2 chain to the camshaft timing gear.
Clean the camshaft housing RH and camshaft journals and apply engine oil to them.
| *1 | Valve Rocker Arm |
| *2 | Lash Adjuster |
| *3 | Valve Stem |
| *4 | Valve Stem Cap |
Make sure that the No. 1 valve rocker arm sub-assembly is installed as shown in the illustration.
| *a | Place on camshaft timing gear |
Install the chain to the camshaft, and then install the camshaft to the camshaft housing RH.
Tech Tips
Place the chain on the camshaft timing gear but do not engage the teeth of the sprocket and the chain.
Install the camshaft so that the timing mark is facing upward.
INSTALL NO. 2 CAMSHAFT
Clean the camshaft housing RH and camshaft journals, and apply engine oil to them.
| *1 | Mark Plate (yellow) |
| *2 | Timing Mark |
Pass the No. 2 camshaft through the No. 2 chain from the front of the vehicle, align the mark plate (yellow) with the timing mark and install the No. 2 chain to the camshaft timing exhaust gear.
While lifting up the No. 2 camshaft, pass the No. 2 chain tensioner assembly through the No. 2 chain and set it in place.
Install the No. 2 camshaft to the camshaft housing RH, and then install the No. 2 chain tensioner assembly with the bolt.
INSTALL CAMSHAFT BEARING CAP (for Bank 1)
Clean the camshaft bearing caps and apply engine oil to them.
| *1 | Valve Rocker Arm |
| *2 | Lash Adjuster |
| *3 | Valve Stem |
| *4 | Valve Stem Cap |
Make sure that the No. 1 valve rocker arm sub-assembly is installed as shown in the illustration.
| *1 | Service Bolt and Washers (used to temporarily secure the camshaft housing) |
| *a | Remove the service bolts and washers to temporarily secure the camshaft housing |
| *b | Part to be Installed |
|
Bolt A |
|
Bolt B |
Check the marks and numbers on the camshaft bearing caps, and then remove the service bolts and washers in the order shown in the illustration. Immediately after removing the service bolts and washers in the locations for the bearing caps, install the bearing caps with the bolts in the order shown in the illustration.
Note
Be sure to follow the numerical order when performing this procedure.
Do not drop the service bolts and washers into the cylinder head.
Check the torque of each bolt again.
INSTALL CHAIN SUB-ASSEMBLY
| *1 | Paint Mark |
Align the paint marks on the camshaft timing gear and chain, and install the chain to the camshaft timing gear.
Tech Tips
If the paint marks are not aligned, align them by turning the camshaft slightly.
INSTALL NO. 1 CHAIN TENSIONER ASSEMBLY
Turn the crankshaft counterclockwise 30° past the "0" timing mark, and then turn it clockwise to align the notch with the "0" timing mark.
Turn the crankshaft slightly to eliminate the slack in the chain.
Tech Tips
Make sure there is some slack in the chain around the area where the chain tensioner is installed.
| *1 | Stopper Plate |
| *a | Push |
While turning the stopper plate of the tensioner clockwise, push in the plunger of the tensioner as shown in the illustration.
While turning the stopper plate of the tensioner counterclockwise, insert a pin of 1.27 mm (0.0500 in.) diameter into the holes in the stopper plate and tensioner to secure the stopper plate in place.
Install the chain tensioner with the 2 bolts.
Remove the pin from the No. 1 chain tensioner.
INSPECT VALVE TIMING
Check the camshaft timing marks.
Note
Check each timing mark from a viewpoint directly in line with the center of the camshaft and the timing mark on each camshaft timing gear.
If the timing marks are checked from any other viewpoint, the valve timing may appear misaligned.
Check that each camshaft timing mark is positioned as shown in the illustration.
| *1 | Timing Mark | - | - |
| *a | Viewpoint | - | - |
Tech Tips
For Intake Camshaft: Be sure to check mark A at the point when marks B, C and D are positioned in line. If the marks are checked from any other viewpoint, they cannot be checked correctly.
If the valve timing is misaligned, reinstall the timing chain.
Turn the crankshaft 2 revolutions, set the No. 1 cylinder to TDC/compression and check the timing marks again.
INSTALL TIMING CHAIN COVER PLATE
Install a new gasket and the timing chain cover plate with the 4 bolts.
INSTALL SPARK PLUG TUBE GASKET
| *a | Before cutting off |
| *b | After cutting off |
|
Area to be cut off |
Using a cutter, cut off the sealing part of the removed plug tube gasket.
| *1 | Plug tube gasket without sealing part |
| *2 | New plug tube gasket |
| *3 | Claw |
Using a plug tube gasket which has had the sealing part cut off, uniformly press in a new plug tube gasket all the way.
Note
Keep the lip free of foreign matter.
Do not tap on the oil seal at an angle.
Tech Tips
If a plug tube gasket that will be used to install a new gasket is deformed, and cannot be positioned on a new gasket, correct the deformation using pliers.
Return the claws of the ventilation baffle plate to their original positions.
POUR ENGINE OIL
Tech Tips
Before installing the cylinder head cover, pour engine oil into the locations shown in the illustration.
INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY
| *a | 2.0 to 3.0 mm |
|
Seal Packing |
Apply seal packing as shown in the illustration.
| Seal packing |
|---|
| Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent |
Note
Remove any oil from the contact surface.
Install the head cover within 3 minutes after applying seal packing.
Do not start the engine for at least 2 hours after installation.
Install 3 new gaskets to the camshaft bearing caps.
Install a new gasket to the head cover.
Apply adhesive to the threads of the 11 cylinder head cover bolts indicated by the black arrows in the illustration.
| Adhesive |
|---|
| Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent. |
|
Apply adhesive to these bolts |
Install the head cover with the 14 bolts.
Attach the clamps and connect the connectors to connect the cylinder head cover.
INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY LH
| *a | 2.0 to 3.0 mm |
|
Seal Packing |
Apply seal packing as shown in the illustration.
| Seal packing |
|---|
| Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent |
Note
Remove any oil from the contact surface.
Install the head cover within 3 minutes after applying seal packing.
Do not start the engine for at least 2 hours after installation.
Install 3 new gaskets to the camshaft bearing caps.
Install a new gasket to the head cover.
Apply adhesive to the threads of the 11 cylinder head cover bolts indicated by the black arrows in the illustration.
| Adhesive |
|---|
| Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent. |
|
Apply adhesive to these bolts |
Install the head cover with the 12 bolts.
Attach the clamps and connect the connectors to connect the cylinder head cover LH.
INSTALL NO. 2 OIL PIPE
Make sure that there is no foreign matter on the mesh of the oil control valve filter RH.
Note
Do not touch the mesh when installing the oil control valve filter.
| *1 | Oil Pipe Union |
| *2 | Oil Check Valve Bolt |
Install the oil control valve filter RH to the oil pipe union. Install new gaskets and temporarily install the oil pipe (on the head cover side).
Install a new gasket and temporarily install the oil pipe (on the cylinder head side) with the oil check valve bolt.
Tighten the oil pipe union (on the head cover side).
Tighten the oil check valve bolt (on the cylinder head side).
Note
If the link that connects the gaskets is broken, remove the connecting link by using nippers or similar tools.
INSTALL NO. 1 OIL PIPE
Make sure that there is no foreign matter on the mesh of the oil control valve filter LH.
Note
Do not touch the mesh when installing the oil control valve filter.
| *1 | Oil Pipe Union |
| *2 | Oil Check Valve Bolt |
Install the oil control valve filter LH to the oil pipe union. Install new gaskets and temporarily install the oil pipe (on the head cover side).
Install a new gasket and temporarily install the oil pipe (on the cylinder head side) with the oil check valve bolt.
Tighten the oil pipe union (on the head cover side).
Tighten the oil check valve bolt (on the cylinder head side).
Note
If the link that connects the gaskets is broken, remove the connecting link by using nippers or similar tools.
INSTALL NO. 2 ENGINE OIL LEVEL DIPSTICK GUIDE
Install a new O-ring to the No. 2 oil level dipstick guide.
Install the No. 2 oil level dipstick guide with the bolt.
Install the oil level dipstick.
INSTALL SPARK PLUG
Install the 6 spark plugs.
INSTALL IGNITION COIL ASSEMBLY
Install the 6 ignition coils with the 6 bolts.
Connect the 6 ignition coil connectors.
Connect the wire harness bracket with the 2 bolts.
Connect the wire harness with the 2 nuts.
INSTALL INJECTOR DRIVER
Note
Be careful not to drop or strike the injector driver.
The injector driver is grounded at the bolt and nut. To ensure that it is grounded, clean all oil and foreign matter from the installation areas of the injector driver and engine before installing the injector driver.
Install the injector driver with the bolt and 2 nuts.
| *1 | Lock Lever |
Connect the 4 connectors to the injector driver. Move the lock levers in the direction indicated by the arrow to lock the 3 connectors.
INSTALL NO. 1 ENGINE COVER
Install the No. 1 engine cover with the 3 clips.
INSTALL GENERATOR ASSEMBLY
INSTALL FUEL PUMP ASSEMBLY
INSTALL BATTERY