CAUTION / NOTICE / HINT
Tech Tips
Perform "Inspection After Repair" after replacing the camshaft, No. 2 camshaft, camshaft timing gear assembly or camshaft timing exhaust gear assembly.
PROCEDURE
INSTALL CAMSHAFT BEARING CAP SETTING RING PIN
Tech Tips
It is not necessary to remove the camshaft bearing cap setting ring pins unless they are being replaced.
| *a | Camshaft Housing Sub-assembly Top Side |
| *b | Protrusion Height |
Using a plastic hammer, tap 10 new camshaft bearing cap setting ring pins into the camshaft housing sub-assembly.
| Standard Protrusion Height |
|---|
| 2.5 to 3.5 mm (0.0984 to 0.138 in.) |
INSTALL STIFFENING CRANKCASE ASSEMBLY
| *a | Seal Packing (2.0 to 3.0 mm (0.0787 to 0.118 in.)) |
| *b | Width: 6.0 to 8.0 mm (0.236 to 0.315 in.) Thickness: 2.5 to 3.5 mm (0.0984 to 0.138 in.) |
| *c | 47 mm (1.85 in.) |
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 surfaces.
Install the stiffening crankcase assembly within 3 minutes and tighten the bolts within 15 minutes of applying seal packing.
Do not start the engine for at least 2 hours after installing the stiffening crankcase assembly.
| *a | Adhesive |
Apply adhesive to 2 or 3 threads at the end of the bolt (A).
| Adhesive |
|---|
| Toyota Genuine Adhesive 1324, Three bond 1324 or equivalent |
Note
Tighten the bolt within 3 minutes of applying adhesive.
Install the stiffening crankcase assembly with the 10 bolts in the order shown in the illustration.
Wipe off any excess seal packing with a clean piece of cloth.
INSTALL REAR ENGINE OIL SEAL
INSTALL SENSOR BRACKET
Install the sensor bracket to the stiffening crankcase assembly with the 2 bolts.
INSTALL ENGINE OIL LEVEL SENSOR
INSTALL OIL PUMP ASSEMBLY
INSTALL STUD BOLT
| *a | 9 mm (0.354 in.) |
| *b | 19 mm (0.748 in.) |
Using an E6 "TORX" socket wrench, install the 2 stud bolts to the stiffening crankcase assembly.
INSTALL NO. 2 OIL PAN SUB-ASSEMBLY
Remove any remaining seal packing.
Note
Remove any oil from the contact surfaces.
Install the No. 2 oil pan sub-assembly within 3 minutes and tighten the bolts within 10 minutes of applying seal packing.
Do not add engine oil for at least 2 hours after installing the No. 2 oil pan sub-assembly.
Do not drop any oil on the contact surfaces of the stiffening crankcase assembly or No. 2 oil pan sub-assembly.
| *a | Seal Packing |
| *b | 6.0 mm (0.236 in.) |
| *c | 3.0 to 4.5 mm (0.118 to 0.177 in.) |
Apply seal packing in a continuous line as shown in the illustration.
| Seal Packing |
|---|
| Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent |
| *a | Nut |
Install the No. 2 oil pan sub-assembly with the 10 bolts and 2 nuts in several steps in the order shown in the illustration.
INSTALL OIL PAN DRAIN PLUG
Install a new oil pan drain plug gasket and the oil pan drain plug to the No. 2 oil pan sub-assembly.
INSTALL CYLINDER HEAD GASKET
INSTALL CYLINDER HEAD SUB-ASSEMBLY
Tech Tips
The cylinder head set bolts are tightened in 3 progressive steps.
Clean the cylinder block sub-assembly and cylinder head sub-assembly with solvent.
Place the cylinder head sub-assembly on the cylinder block sub-assembly.
Note
Remove any oil from the contact surface of the cylinder head sub-assembly.
Place the cylinder head sub-assembly on the cylinder block sub-assembly gently in order not to damage the cylinder head gasket with the bottom of the cylinder head sub-assembly.
Install the 10 cylinder head set plate washers to the 10 cylinder head set bolts.
Apply a light coat of engine oil to the threads and under the heads of the cylinder head set bolts.
Step 1:
Using a 10 mm bi-hexagon socket wrench, install and uniformly tighten the 10 cylinder head set bolts in several steps in the order shown in the illustration.
Note
Do not drop the cylinder head set plate washers for the cylinder head set bolts into the cylinder head sub-assembly.
Step 2:
| *a | Paint Mark |
| *b | 90° |
|
Front of Engine |
Mark each cylinder head set bolt head with paint as shown in the illustration.
Tighten the cylinder head set bolts 90° in the order shown in step 1.
Step 3:
Tighten the cylinder head set bolts another 90° in the order shown in step 1.
Check that the paint marks are now at a 180° angle to the front.
Note
Do not add engine oil for at least 2 hours after installing the cylinder head sub-assembly.
| *1 | Cylinder Head Sub-assembly |
| *2 | Cylinder Block Sub-assembly |
| *3 | Cylinder Head Gasket |
| *a | Direction to wipe off |
| *b | Before Wiping Off |
| *c | After Wiping Off |
| *d | After Wiping by Cloth |
| *e | Seal Packing |
| *f | Chamfer of Cylinder Head Sub-assembly |
| *g | Chamfer of Cylinder Block Sub-assembly |
After tightening the cylinder head set bolts, wipe off any seal packing that seeped out from the contact surfaces between the cylinder head sub-assembly and cylinder block sub-assembly.
Note
Be sure to wipe off the seal packing from inside to outside, parallel to the joint line.
Be sure to avoid clogging the bolt holes when wiping off the seal packing.
Using a cloth, wipe off any seal packing from the chamfers of the cylinder head sub-assembly and cylinder block sub-assembly.
Note
Be sure to wipe off the seal packing from inside to outside, parallel to the joint line.
Be sure to avoid clogging the bolt holes when wiping off the seal packing.
Do not wipe off the seal packing to the extent that the end of the cylinder head gasket is exposed.
Do not leave any seal packing on the chamfers of the cylinder block sub-assembly or cylinder head sub-assembly.
INSTALL VALVE STEM CAP
Apply a light coat of engine oil to the valve stem ends.
Install the 16 valve stem caps to the cylinder head sub-assembly.
Note
Install the same parts to their original positions.
Do not drop the valve stem caps into the cylinder head sub-assembly.
INSTALL VALVE LASH ADJUSTER ASSEMBLY
Inspect the 16 valve lash adjuster assemblies before installing them.
Install the 16 valve lash adjuster assemblies to the cylinder head sub-assembly.
Note
Install the same parts to their original positions.
INSTALL NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
| *1 | Valve Lash Adjuster Assembly |
| *2 | No. 1 Valve Rocker Arm Sub-assembly |
| *3 | Valve Stem Cap |
Apply engine oil to the tips of the valve lash adjuster assemblies and valve stem caps.
Install the 16 No. 1 valve rocker arm sub-assemblies as shown in the illustration.
Note
Install the same parts to their original positions.
INSTALL CAMSHAFT HOUSING SUB-ASSEMBLY
INSTALL OIL CONTROL VALVE FILTER
Install the oil control valve filter to the camshaft housing sub-assembly.
INSTALL NO. 2 CAMSHAFT
INSTALL CAMSHAFT
INSTALL CAMSHAFT BEARING CAP
Set the camshaft and No. 2 camshaft as shown in the illustration.
Install the 5 camshaft bearing caps to the camshaft housing sub-assembly.
Install and uniformly tighten the 22 bolts in the order shown in the illustration.
Note
After installing the camshaft housing sub-assembly, make sure that the cam lobes are positioned as shown in the illustration.
If any of the bolts are loosened during installation, remove the camshaft housing sub-assembly, clean the installation surfaces, and reapply seal packing.
If the camshaft housing sub-assembly is removed because any of the bolts are loosened during installation, make sure that the previously applied seal packing does not enter any oil passages.
After installing the camshaft housing sub-assembly, wipe off any seal packing that seeped out from between the camshaft housing sub-assembly and the cylinder head sub-assembly.
INSTALL WATER OUTLET GASKET
Install the water outlet gasket to the water outlet.
INSTALL WATER OUTLET
Install the water outlet to the cylinder head sub-assembly with the 3 bolts.
INSTALL ENGINE COOLANT TEMPERATURE SENSOR
INSTALL NO. 5 ENGINE WIRE
Engage the wire harness clamp and install the No. 5 engine wire to the water outlet.
Connect the engine coolant temperature sensor connector.
INSTALL NO. 7 WATER BY-PASS HOSE
Install the No. 7 water by-pass hose to the water outlet and slide the clip to secure it.
INSTALL WATER VALVE
Install the water valve to the No. 7 water by-pass hose and slide the clip to secure it.
Connect the water valve to the camshaft housing sub-assembly with the bolt.
INSTALL CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
Note
There are several different types of camshaft timing gear bolt. Make sure to check the identification mark to determine the tightening torque.
| *a | Identification Mark |
| Item | Identification Mark |
|---|---|
| Type A | B |
| Type B | G |
| *a | Knock Pin |
| *b | Knock Pin Hole |
Align and fit the knock pin of the No. 2 camshaft to the knock pin hole of the camshaft timing exhaust gear assembly.
Note
Do not forcibly push in the camshaft timing exhaust gear assembly. This may cause the knock pin tip to damage the installation surface of the camshaft timing exhaust gear assembly.
Tech Tips
Fit the No. 2 camshaft and camshaft timing exhaust gear assembly together by pushing camshaft timing exhaust gear assembly lightly against the No. 2 camshaft and rotating it to the left (counterclockwise).
| *1 | Camshaft Timing Exhaust Gear Assembly |
| *2 | No. 2 Camshaft Flange |
| *a | No Gap |
Check that there is no gap between the camshaft timing exhaust gear assembly and No. 2 camshaft flange.
Apply engine oil to the areas of the camshaft timing gear bolt (for exhaust side) shown in the illustration.
Tighten the camshaft timing gear bolt (for exhaust side) while holding the camshaft timing exhaust gear assembly.
Note
If the camshaft timing gear bolt (for exhaust side) has been struck or dropped, replace it.
Do not use an impact wrench.
INSTALL CAMSHAFT TIMING GEAR ASSEMBLY
Note
There are several different types of camshaft timing gear bolt. Make sure to check the identification mark to determine the tightening torque.
| Item | Identification Mark |
|---|---|
| Type A | A |
| Type B | C |
| *a | Identification Mark |
| *a | Knock Pin |
| *b | Knock Pin Hole |
Align and fit the knock pin of the camshaft to the knock pin hole of the camshaft timing gear assembly.
Note
Do not forcibly push in the camshaft timing gear assembly. This may cause the knock pin tip to damage the installation surface of the camshaft timing gear assembly.
Tech Tips
Fit the camshaft and camshaft timing gear assembly together by pushing camshaft timing gear assembly lightly against the camshaft and rotating it to the left (counterclockwise).
| *1 | Camshaft Timing Gear Assembly |
| *2 | Camshaft Flange |
| *a | No Gap |
Check that there is no gap between the camshaft timing gear assembly and camshaft flange.
Apply engine oil to the areas of the camshaft timing gear bolt (for intake side) shown in the illustration.
Tighten the camshaft timing gear bolt (for intake side) while holding the camshaft timing gear assembly.
Note
If the camshaft timing gear bolt (for intake side) has been struck or dropped, replace it.
Do not use an impact wrench.
INSTALL NO. 2 CHAIN SUB-ASSEMBLY
Temporarily install the crankshaft pulley set bolt to the crankshaft.
| *a | Crankshaft Timing Gear Key |
Set the crankshaft timing gear keys as shown in the illustration.
Turn the oil pump drive shaft so that the flat face upward.
Remove the crankshaft pulley set bolt from the crankshaft.
| *1 | Oil Pump Drive Gear |
| *2 | Oil Pump Drive Shaft Gear |
| *a | Mark Plate (Gold) |
| *b | Timing Mark |
| *c | Crankshaft Timing Gear Key Groove |
|
Front of Engine |
Align the mark plates (gold) with the timing mark of the oil pump drive gear and oil pump drive shaft gear as shown in the illustration.
Tech Tips
Make sure the mark plates (gold) of the No. 2 chain sub-assembly are facing away from the engine assembly.
With the No. 2 chain sub-assembly placed around the oil pump drive gear and oil pump drive shaft gear, install the oil pump drive gear to the crankshaft and temporarily install the oil pump drive shaft gear to the oil pump drive shaft.
Temporarily install the oil pump drive shaft gear nut.
| *1 | Chain Tensioner Plate |
| *2 | Chain Damper Spring |
| *a | Bolt |
Install the chain damper spring to the chain tensioner plate, and then install the chain tensioner plate with the bolt.
Temporarily install the crankshaft pulley to the crankshaft with the crankshaft pulley set bolt.
Using SST, hold the crankshaft pulley. Then tighten the oil pump drive shaft gear nut.
Remove SST, the crankshaft pulley set bolt and crankshaft pulley.
INSTALL CRANKSHAFT TIMING SPROCKET
|
Front of Engine |
Install the crankshaft timing sprocket to the crankshaft.
SET NO. 1 CYLINDER TO TDC/COMPRESSION
Temporarily install the crankshaft pulley set bolt to the crankshaft.
| *a | Crankshaft Timing Gear Key |
Turn the crankshaft clockwise until the crankshaft timing gear key is facing upward.
| *a | Timing Mark |
Check that the timing marks on the camshaft timing exhaust gear assembly and camshaft timing gear assembly are aligned as shown in the illustration.
Remove the crankshaft pulley set bolt from the crankshaft.
INSTALL CHAIN SUB-ASSEMBLY
INSTALL CHAIN TENSIONER SLIPPER
Install the chain tensioner slipper to the cylinder block sub-assembly.
INSTALL NO. 1 CHAIN TENSIONER ASSEMBLY
| *a | Pin |
Install the No. 1 chain tensioner assembly to the cylinder head sub-assembly with the 2 bolts.
Remove the pin from the stopper plate hole.
CHECK NO. 1 CYLINDER TDC/COMPRESSION
Check that each timing mark is at TDC/compression.
| *a | Timing Mark | *b | Mark Plate (Gold) |
INSTALL THERMOSTAT (for Cylinder Block)
INSTALL WATER INLET
INSTALL WATER INLET PIPE
Apply water to 2 new water inlet O-rings, and install the water inlet O-rings to the water inlet pipe.
Install the water inlet pipe to the water inlet.
INSTALL TIMING CHAIN COVER OIL SEAL
INSTALL TIMING CHAIN COVER ASSEMBLY
Install a new water pump gasket to the engine water pump assembly.
Tech Tips
Be sure to clean the contact surfaces.
Temporarily install the engine water pump assembly to the timing chain cover assembly with the 4 bolts.
Remove any remaining seal packing.
Clean the contact surfaces of the timing chain cover assembly, camshaft housing sub-assembly, cylinder head sub-assembly, cylinder block sub-assembly and stiffening crankcase assembly, and confirm that no oil, moisture, or other foreign matter is on the surfaces.
| *a | Engine Side | *b | Timing Chain Cover Assembly Side |
|
Clean | - | - |
Apply seal packing to the engine unit as shown in the illustration.
| Seal Packing |
|---|
| Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent |
| Standard Seal Packing Diameter |
|---|
| 5.0 mm (0.197 in.) |
Note
Install the timing chain cover assembly within 3 minutes and tighten the bolts within 10 minutes of applying seal packing.
| *a | Seal Packing |
| *b | Thickness: 2.5 to 3.5 mm (0.0984 to 0.138 in.) Width: 6.0 to 8.0 mm (0.236 to 0.315 in.) |
| *c | Thickness: 2.5 to 3.5 mm (0.0984 to 0.138 in.) Width: 14.0 to 16.0 mm (0.551 to 0.630 in.) |
| *d | 9.1 mm (0.358 in.) |
| *e | 19.9 mm (0.783 in.) |
| *f | 7.9 mm (0.311 in.) |
| *g | 8.3 mm (0.327 in.) |
| *h | 20.0 mm (0.787 in.) |
| *i | 8.1 mm (0.319 in.) |
Apply seal packing to the timing chain cover assembly as shown in the illustration.
| Seal Packing |
|---|
| Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent |
| Standard Seal Packing Diameter |
|---|
| 2.5 to 3.5 mm (0.0984 to 0.138 in.) |
Note
Install the timing chain cover assembly within 3 minutes and tighten the bolts within 10 minutes of applying seal packing.
Install the timing chain cover assembly.
Temporarily install the engine mounting bracket RH with the 3 bolts.
Note
Make sure that there is no oil on the threads of the bolts.
| *a | Adhesive |
Apply adhesive to the threads of the 2 bolts (B).
| Adhesive |
|---|
| Toyota Genuine Adhesive 1324, Three bond 1324 or equivalent |
Note
Make sure that there is no oil on the threads of the bolts.
Tighten the 26 bolts in the order shown in the illustration.
| *a | Torque | *b | Bolt Tightening Order |
Note
Tighten the bolts within 10 minutes of applying seal packing.
Do not add engine oil for at least 2 hours after installation.
Do not start the engine for at least 2 hours after installation.
Make sure that there is no oil on the threads of the bolts.
INSTALL STUD BOLT
Note
If a stud bolt is deformed or its threads are damaged, replace it.
Install the stud bolt to the engine mounting bracket RH.
INSTALL NO. 2 WATER INLET HOUSING GASKET
INSTALL WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
INSTALL CRANKSHAFT PULLEY
INSTALL OIL FILTER UNION
Using a 12 mm hexagon socket wrench, install the oil filter union to the timing chain cover assembly.
INSTALL OIL FILTER SUB-ASSEMBLY
INSTALL SPARK PLUG TUBE GASKET
Install 4 new spark plug tube gaskets to the cylinder head cover sub-assembly.
INSTALL CYLINDER HEAD COVER GASKET
Install a new cylinder head cover gasket to the cylinder head cover sub-assembly.
Note
Remove any oil from the contact surfaces.
ADD ENGINE OIL
Tech Tips
Before installing the cylinder head cover sub-assembly, pour engine oil into the oil hole shown in the illustration until the oil hole is filled with engine oil.
INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY
Install 3 new gaskets to the locations shown in the illustration.
| *a | 18.0 mm (0.709 in.) |
| *b | 17.0 mm (0.669 in.) |
| *c | 21.0 mm (0.827 in.) |
Apply seal packing as shown in the illustration.
| Seal Packing |
|---|
| Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent |
| Standard Seal Packing Diameter |
|---|
| 2.0 to 3.0 mm (0.0787 to 0.118 in.) |
Note
Remove any oil from the contact surfaces.
Install the cylinder head cover sub-assembly within 3 minutes and tighten the bolts within 15 minutes of applying seal packing.
Do not start the engine for at least 2 hours after installation.
| *1 | Cylinder Head Cover Seal Washer |
Install the cylinder head cover sub-assembly to the camshaft housing sub-assembly with the 17 bolts and 2 new cylinder head cover seal washers in the order shown in the illustration.
Using a 10 mm deep socket wrench, install the cover joint to the cylinder head cover sub-assembly.
INSTALL OIL PUMP RELIEF VALVE HOUSING ASSEMBLY
| *1 | Oil Pump Relief Valve Housing Assembly |
| *2 | Oil Regulator Body Gasket |
| *a | Bolt |
Install a new oil regulator body gasket to the oil pump relief valve housing assembly as shown in the illustration.
Install the oil pump relief valve housing assembly to the cylinder block sub-assembly with the 2 bolts.
INSTALL OIL PRESSURE SWITCHING VALVE ASSEMBLY
INSTALL OIL PRESSURE SENDER GAUGE ASSEMBLY
INSTALL ENGINE OIL TEMPERATURE SENSOR
INSTALL CRANKSHAFT POSITION SENSOR
INSTALL KNOCK CONTROL SENSOR
INSTALL GENERATOR BRACKET
Install the generator bracket to the cylinder block sub-assembly with the bolt.
INSTALL ENGINE OIL LEVEL DIPSTICK GUIDE
Apply a light coat of engine oil to a new engine oil level dipstick guide O-ring and install it to the engine oil level dipstick guide.
Install the engine oil level dipstick guide to the camshaft housing sub-assembly with the bolt.
Install the engine oil level dipstick to the engine oil level dipstick guide.
INSTALL CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Exhaust Side)
INSTALL CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side)
INSTALL CAMSHAFT POSITION SENSOR (for Exhaust Side)
INSTALL CAMSHAFT POSITION SENSOR (for Intake Side)
INSTALL SPARK PLUG
INSTALL OIL FILLER CAP GASKET
Install the oil filler cap gasket to the oil filler cap sub-assembly.
INSTALL OIL FILLER CAP SUB-ASSEMBLY
Install the oil filler cap sub-assembly to the cylinder head cover sub-assembly.