Tech Tips
Perform "Inspection After Repair" after replacing the camshaft, No. 2 camshaft, camshaft timing gear assembly or camshaft timing exhaust gear assembly Click here.
INSTALL NO. 2 CAMSHAFT BEARING
Clean the No. 2 camshaft bearing.
Install the camshaft bearing to the camshaft housing.
| *1 | Vernier Caliper |
Using a vernier caliper, measure the distance between the camshaft housing edge and the camshaft bearing edge.
| Standard distance |
|---|
| 1.15 to 1.85 mm (0.0453 to 0.0728 in.) |
INSTALL NO. 1 CAMSHAFT BEARING
| *1 | Vernier Caliper |
Clean the No. 1 camshaft bearing.
Install the camshaft bearing to the No. 1 camshaft bearing cap.
Using a vernier caliper, measure the distance between the camshaft bearing cap edge and the camshaft bearing edge.
| Standard dimension A - B or B - A |
|---|
| 0 to 0.7 mm (0 to 0.0276 in.) |
INSTALL OIL CONTROL VALVE FILTER
Install the oil control valve filter to the No. 1 camshaft bearing cap.
INSTALL CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
| *a | Knock Pin Hole |
| *b | Knock Pin |
Align and attach the knock pin of the No. 2 camshaft with the pin hole of the camshaft timing exhaust gear assembly.
| *1 | Camshaft Timing Exhaust Gear Assembly |
| *a | Incorrect |
| *b | Correct |
| *c | Clearance |
| *d | No Clearance |
| *e | Camshaft Flange |
Check that there is no clearance between the camshaft timing exhaust gear assembly and camshaft flange.
Fix the camshaft timing exhaust gear assembly with the bolt.
Note
Do not disassemble the camshaft timing exhaust gear assembly.
Tech Tips
Perform "Inspection After Repair" after replacing the camshaft timing exhaust gear assembly Click here.
SET TDC/COMPRESSION
| *a | Timing Notch |
Turn the crankshaft pulley until its timing notch (groove) and the timing mark "0" of the timing chain cover sub-assembly are aligned.
INSTALL NO. 2 CAMSHAFT
Make sure that the No. 1 valve rocker arm sub-assemblies are installed as shown in the illustration.
| *A | Type A | *B | Type B |
| *1 | No. 1 Valve Rocker Arm Sub-assembly | *2 | Valve Lash Adjuster Assembly |
| *3 | Valve Stem Cap | - | - |
Clean the camshaft journals.
Apply a light coat of engine oil to the camshaft journals, camshaft housing sub-assembly and camshaft bearing caps.
| *a | Paint Mark |
| *b | Timing Mark |
Hold up the chain sub-assembly and align the timing mark and the paint mark, and install the No. 2 camshaft.
Tech Tips
Perform "Inspection After Repair" after replacing the No. 2 camshaft Click here.
INSTALL CAMSHAFT
Make sure that the No. 1 valve rocker arm sub-assemblies are installed as shown in the illustration.
| *A | Type A | *B | Type B |
| *1 | No. 1 Valve Rocker Arm Sub-assembly | *2 | Valve Lash Adjuster Assembly |
| *3 | Valve Stem Cap | - | - |
Clean the camshaft journals.
Apply a light coat of engine oil to the camshaft journals and camshaft housing sub-assembly.
| *a | Approximately 17° |
| *b | Knock Pin |
Install the camshaft to the camshaft housing sub-assembly as shown in the illustration.
Tech Tips
Perform "Inspection After Repair" after replacing the camshaft Click here.
INSTALL CAMSHAFT BEARING CAP
Confirm the marks and numbers on the No. 1 camshaft bearing cap, No. 2 camshaft bearing cap and 3 No. 3 camshaft bearing caps and place them in their proper positions and directions.
Using several steps, uniformly tighten the 10 bolts in the sequence shown in the illustration.
Using several steps, uniformly tighten the 11 bolts in the sequence shown in the illustration.
Check the torque of each bolt again.
INSTALL CAMSHAFT TIMING GEAR ASSEMBLY
| *a | Advanced Position |
| *b | Retarded Position |
| *c | Knock Pin Hole |
| *d | Alignment Mark |
Check the camshaft timing gear assembly position.
Note
If the camshaft timing gear assembly is set to the advanced position, do not let the camshaft timing gear assembly rotate clockwise during installation.
If the camshaft timing gear assembly has rotated to the most retarded position, make sure to release the lock pin and set the camshaft timing gear assembly to the most advanced position before tightening the camshaft timing gear assembly.
| *a | Narrow |
| *b | Wide |
Install the camshaft timing gear assembly as shown in the illustration.
| *a | Narrow |
| *b | Wide |
Turn the camshaft timing gear assembly approximately 180° counterclockwise.
| *a | Paint Mark |
| *b | Timing Mark |
Align the paint mark with the timing mark to install the chain sub-assembly.
Tech Tips
"A" is not a timing mark.
| *a | Knock Pin Hole |
| *b | Knock Pin |
Align and attach the knock pin of the camshaft with the pin hole of the camshaft timing gear assembly.
| *1 | Camshaft Timing Gear Assembly |
| *a | Incorrect |
| *b | Correct |
| *c | Clearance |
| *d | No Clearance |
| *e | Camshaft Flange |
Check that there is no clearance between the camshaft timing gear assembly and camshaft flange.
Secure the camshaft in place by hand, and then temporarily install the installation bolt to the camshaft timing gear assembly by hand.
Note
Do not use any tools to install the bolt. If the bolt is installed using a tool, the lock pin will be damaged.
If the lock pin has not been released, release it.
| *a | Make a Hole |
| *b | Adhesive Tape Sealing Area |
After cleaning and degreasing the intake side VVT oil hole on the No. 1 camshaft bearing cap, completely seal the oil hole with adhesive tape or equivalent as shown in the illustration to prevent air from leaking.
Note
Be sure to seal the oil hole completely because air leaks due to insufficient sealing will prevent the lock pin from being released.
Make a hole in the adhesive tape covering the oil hole as shown in the illustration. (Procedure A)
Apply approximately 200 kPa (2.0 kgf/ cm2, 29 psi) of air pressure to the hole made in procedure A to release the lock pin.
Note
If air leaks out, reattach the adhesive tape.
Cover the oil hole with a piece of cloth when applying air pressure to prevent oil from spraying.
Forcibly turn the camshaft timing gear assembly in the advance direction (counterclockwise).
Tech Tips
Depending on the air pressure applied, the camshaft timing gear assembly may turn in the advance direction without assistance by hand.
Remove the adhesive tape from the No. 1 camshaft bearing cap.
Using a wrench to hold the hexagonal portion of the camshaft, tighten the bolt.
Note
Be careful not to damage the cylinder head sub-assembly or spark plug tube with the wrench.
| *a | Paint Mark |
| *b | Timing Mark |
Check that both timing marks on the camshaft timing gear assembly and camshaft timing exhaust gear assembly are facing upward as shown in the illustration.
Tech Tips
"A" is not a timing mark.
Perform "Inspection After Repair" after replacing the camshaft timing gear assembly Click here.
ADD ENGINE OIL
Add 50 cc (3.1 cu. in.) of engine oil into the oil hole shown in the illustration.
Note
Oil must be added if the valve lash adjuster assemblies were removed.
Make sure that the low pressure chamber and oil paths of the valve lash adjuster assemblies are full of engine oil.
INSTALL TIMING CHAIN GUIDE
Install the timing chain guide with the bolt.
INSTALL NO. 1 CHAIN TENSIONER ASSEMBLY
Turn the crankshaft pulley approximately 10° clockwise.
Install a new gasket and the No. 1 chain tensioner assembly with the 2 bolts.
Note
Make sure not to drop the gasket inside the timing chain cover sub-assembly.
Remove the pin from the stopper plate.
CHECK NO. 1 CYLINDER TO TDC/COMPRESSION
Turn the crankshaft pulley until its timing notch (groove) and the timing mark "0" of the timing chain cover sub-assembly are aligned.
| *a | Timing Mark | *b | Timing Notch |
| *c | Approximately 7° | *d | Approximately 32° |
Check that both timing marks on the camshaft timing gear assembly and camshaft timing exhaust gear assembly are facing upward as shown in the illustration. If not, turn the crankshaft 1 revolution (360°) to align the timing marks as shown in the illustration.
Tech Tips
"A" is not a timing mark.
INSTALL TIMING CHAIN COVER PLATE
Install a new gasket and the timing chain cover plate with the 4 bolts.
INSTALL TIMING CHAIN COVER TIGHT PLUG
Using a 14 mm hexagon wrench, install a new gasket and the plug.
INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY
Apply a light coat of engine oil to 3 new gaskets.
Install the 3 gaskets to the camshaft bearing caps.
Install a new gasket to the cylinder head cover.
Note
Remove any oil from the contact surface.
| *1 | Seal Packing |
| *2 | Timing Chain Cover |
| *3 | Camshaft Housing |
Apply seal packing as shown in the illustration.
| Seal packing |
|---|
| Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent |
| Standard seal diameter |
|---|
| 3.0 to 6.0 mm (0.118 to 0.236 in.) |
| Application width A |
|---|
| 5.0 mm (0.197 in.) |
Note
Remove any oil from the contact surface.
Install the cylinder head cover within 3 minutes and tighten the bolts within 15 minutes after applying seal packing.
Align the cylinder head cover with pin A. Then align the cylinder head cover with pin B and install the cylinder head cover.
Install 3 new seal washers and the 16 bolts, and then tighten the bolts in the order shown in the illustration.
Note
Do not apply oil for at least 4 hours after the installation.
INSTALL IGNITION COIL ASSEMBLY
Install the 4 ignition coil assemblies with the 4 bolts.
Tech Tips
Perform "Inspection After Repair" after replacing the ignition coil assembly Click here.
Connect the 4 ignition coil assembly connectors.
CONNECT ENGINE WIRE
Connect the engine wire to the engine assembly with the bolts and nuts.
Connect the connectors and clamps.
INSTALL NO. 2 ENGINE ROOM RELAY BLOCK (w/ No. 2 Engine Room Relay Block)
Engage the 2 clamps and install the No. 2 engine room relay block with the bolt.
Install the front fender liner RH with the screw.
INSTALL ENGINE MOVING CONTROL ROD BRACKET
INSTALL EARTH WIRE
INSTALL NO. 2 ENGINE MOUNTING STAY RH
INSTALL AIR CLEANER CASE SUB-ASSEMBLY
INSTALL AIR CLEANER FILTER ELEMENT
INSTALL AIR CLEANER CAP SUB-ASSEMBLY
Install the air cleaner cap sub-assembly with the 2 clamps.
Install the air cleaner hose with the hose clamp.
Connect the ventilation hose to the cylinder head cover.
Install the fuel vapor feed hose to the air cleaner hose.
Connect the mass air flow meter connector and 2 wire harness clamps to the air cleaner cap sub-assembly.
Connect the vacuum switching valve assembly to the air cleaner hose.
INSTALL INLET AIR CLEANER ASSEMBLY
CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
Note
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.
INSPECT FOR OIL LEAK
INSTALL FRONT FENDER APRON SEAL RH
INSTALL ENGINE UNDER COVER RH
INSTALL FRONT WHEEL OPENING EXTENSION PAD RH
INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY
INSTALL COOL AIR INTAKE DUCT SEAL (for TMC, TMMR Made)
INSTALL COOL AIR INTAKE DUCT SEAL (for TMMK Made)
Install the cool air intake duct seal with the 9 clips.
INSTALL FRONT WHEEL RH