ENGINE UNIT REASSEMBLY
PROCEDURE
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INSTALL RING PIN
Note
It is not necessary to remove a ring pin unless it is being replaced.
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Using a plastic-faced hammer, tap in new ring pins to the camshaft housing.
Standard protrusion height 2.7 to 3.3 mm (0.106 to 0.130 in.) 
*a LH Side *b RH Side *c Protrusion Height - -
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INSTALL NO. 1 STRAIGHT PIN
Note
It is not necessary to remove a No. 1 straight pin unless it is being replaced.
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Using a plastic-faced hammer, tap in new No. 1 straight pins to the camshaft housing.
Standard protrusion height 7.7 to 8.3 mm (0.303 to 0.327 in.) 
*a LH Side *b RH Side *c Protrusion Height - -
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INSTALL REAR ENGINE OIL SEAL
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Place the rear engine oil seal retainer on wooden blocks.
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Using SST, tap in a new rear engine oil seal until its surface is flush with the rear engine oil seal retainer edge.
- SST
- 09223-15030 ( 09951-07150 )
Oil Seal Protrusion Height -0.5 to 0.5 mm (-0.0197 to 0.0197 in.) Note
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Keep the lip free of foreign matter.
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Do not tap on the rear engine oil seal at an angle.
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INSTALL REAR ENGINE OIL SEAL RETAINER
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Apply MP grease to the lip of the rear engine oil seal.
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*a Seal Packing Apply seal packing in a continuous line as shown in the illustration.
Seal packing Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent Seal diameter 2.0 to 3.0 mm (0.0787 to 0.118 in.) Note
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Remove any oil from the contact surface.
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Install the engine rear engine oil seal retainer within 3 minutes after applying seal packing.
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Do not start the engine for at least 2 hours after installation.
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Install the rear engine oil seal retainer with the 6 bolts.
- Torque:
- 10 N*m { 102 kgf*cm, 7 ft.*lbf }
Note
Be sure to apply adhesive 1324 to the bolts in the places indicated by A before installing them.
Adhesive Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent
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INSTALL CYLINDER BLOCK WATER JACKET SPACER
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Front Side Install the 2 water jacket spacers as shown in the illustration.
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INSTALL NO. 1 WATER OUTLET PIPE
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Install the No. 1 water outlet pipe with the 2 bolts.
- Torque:
- 10 N*m { 102 kgf*cm, 7 ft.*lbf }
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INSTALL KNOCK CONTROL SENSOR
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INSTALL SENSOR WIRE
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Install the No. 5 engine wire with the 2 connectors and clamp.
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INSTALL CYLINDER HEAD GASKET
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INSTALL CYLINDER HEAD SUB-ASSEMBLY
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INSTALL NO. 2 CYLINDER HEAD GASKET
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INSTALL CYLINDER HEAD LH
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INSTALL VALVE STEM CAP
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INSTALL VALVE LASH ADJUSTER ASSEMBLY
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INSTALL NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
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INSTALL CAMSHAFT BEARING CAP OIL HOLE GASKET
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Install the camshaft bearing cap oil hole gasket to the No. 6 camshaft bearing cap.
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Install the camshaft bearing cap oil hole gasket to the No. 7 camshaft bearing cap.
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INSTALL OIL CONTROL VALVE FILTER LH
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*a Camshaft Installation Surface Install the oil control valve filter LH to the camshaft bearing cap.
Note
Make sure the oil control valve filter does not protrude past the camshaft installation surface shown in the illustration.
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INSTALL OIL CONTROL VALVE FILTER RH
Tech Tips
Use the same procedure described for the LH side.
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INSTALL NO. 3 CAMSHAFT SUB-ASSEMBLY
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INSTALL NO. 4 CAMSHAFT SUB-ASSEMBLY
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INSTALL CAMSHAFT BEARING CAP (for Bank 2)
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INSTALL CAMSHAFT HOUSING SUB-ASSEMBLY LH
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INSTALL CAMSHAFT
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INSTALL NO. 2 CAMSHAFT
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INSTALL FUEL PUMP LIFTER HOUSING
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INSTALL CAMSHAFT BEARING CAP (for Bank 1)
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INSTALL CAMSHAFT HOUSING SUB-ASSEMBLY RH
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INSTALL NO. 2 CHAIN TENSIONER ASSEMBLY
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INSTALL CAMSHAFT TIMING GEARS AND NO. 2 CHAIN (for Bank 1)
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TEMPORARILY INSTALL CAMSHAFT TIMING GEAR BOLT (for Intake Side of Bank 1)
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TEMPORARILY INSTALL CAMSHAFT TIMING GEAR BOLT (for Exhaust Side of Bank 1)
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TIGHTEN CAMSHAFT TIMING GEAR BOLT (for Bank 1)
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INSTALL NO. 3 CHAIN TENSIONER ASSEMBLY
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INSTALL CAMSHAFT TIMING GEARS AND NO. 2 CHAIN (for Bank 2)
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TEMPORARILY INSTALL CAMSHAFT TIMING GEAR BOLT (for Intake Side of Bank 2)
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TEMPORARILY INSTALL CAMSHAFT TIMING GEAR BOLT (for Exhaust Side of Bank 2)
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TIGHTEN CAMSHAFT TIMING GEAR BOLT (for Bank 2)
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INSTALL NO. 1 CHAIN VIBRATION DAMPER
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Install the No. 1 chain vibration damper with the 2 bolts.
- Torque:
- 22.5 N*m { 229 kgf*cm, 17 ft.*lbf }
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INSTALL NO. 2 CHAIN VIBRATION DAMPER
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Install the 2 No. 2 chain vibration dampers.
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INSTALL CRANKSHAFT TIMING GEAR OR SPROCKET
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Install the 2 timing gear set keys and camshaft timing gear or sprocket to the crankshaft.
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INSTALL IDLE SPROCKET ASSEMBLY
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*1 No. 1 Idle Gear Shaft *2 Idle Sprocket *3 No. 2 Idle Gear Shaft *a Knock Pin Apply Engine Oil Apply a light coat of engine oil to the rotating surface of the No. 1 idle gear shaft.
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Temporarily install the No. 1 idle gear shaft and idle sprocket with the No. 2 idle gear shaft while aligning the knock pin of the No. 1 idle gear with the knock pin groove of the cylinder block.
Note
Make sure that the idle gear is facing the correct direction.
Tech Tips
Check that no foreign objects are on the No. 1 and No. 2 idle gear shafts.
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Using a 10 mm hexagon wrench, tighten the No. 2 idle gear shaft.
- Torque:
- 60 N*m { 612 kgf*cm, 44 ft.*lbf }
Tech Tips
After installing the idle sprocket assembly, check that the idle sprocket turns smoothly.
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INSTALL CHAIN SUB-ASSEMBLY
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Check that the camshaft timing gear position on the RH bank and the timing marks on the LH bank and crankshaft are positioned as shown in the illustration.
*a Timing Mark *b Center Line -
*a Mark Plate (Yellow) *b Timing Mark Align the mark plates and timing marks as shown in the illustration and install the chain sub-assembly.
Tech Tips
The camshaft mark plates are yellow.
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Rest the chain sub-assembly on top of the crankshaft.
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*a When idle sprocket is reused *b Mark *c Align *d Chain Plate Turn Turn the camshaft timing gear assembly on the RH bank counterclockwise to tighten the chain sub-assembly between the banks.
Note
When the idle sprocket is reused, align the chain plate with the mark where the plate had been in order to tighten the chain sub-assembly between the banks.
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*a Mark Plate (Pink) *b Timing Mark Align the mark plate and timing mark as shown in the illustration and install the chain sub-assembly onto the crankshaft timing sprocket.
Tech Tips
The crankshaft mark plate is pink.
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Temporarily install the pulley set bolt.
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*a Timing Mark *b Center Line Turn Turn the crankshaft clockwise 10° to set it to the RH block bore center line (TDC/compression).
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INSTALL CHAIN TENSIONER SLIPPER
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Install the chain tensioner slipper.
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INSTALL NO. 1 CHAIN TENSIONER ASSEMBLY
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*a Stopper Plate *b Plunger *c Pin Move the stopper plate upward to release the lock, and push the plunger deep into the No. 1 chain tensioner assembly.
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Move the stopper plate downward to set the lock, and insert a pin of 1.27 mm (0.0500 in.) diameter into the hole of the stopper plate.
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Install the No. 1 chain tensioner assembly with the 2 bolts.
- Torque:
- 10 N*m { 102 kgf*cm, 7 ft.*lbf }
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Remove the lock pin of the No. 1 chain tensioner assembly.
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INSPECT VALVE TIMING
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Check the camshaft timing marks.
Note
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Check each timing mark from a viewpoint directly inline with the center of the camshaft and the timing mark on each camshaft timing gear.
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If the timing marks are checked from any other viewpoint, the valve timing may appear misaligned.
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Check that each camshaft timing mark is positioned as shown in the illustration.
*a Timing Mark *b Viewpoint Tech Tips
For the 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.
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If the valve timing is misaligned, reinstall the timing chain.
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Remove the pulley set bolt.
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INSTALL ENGINE WATER PUMP ASSEMBLY
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INSTALL TIMING CHAIN COVER ASSEMBLY
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INSTALL TIMING CHAIN CASE OIL SEAL
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INSTALL NO. 1 OIL PAN BAFFLE PLATE
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for 2WD:
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Install the No. 1 oil pan baffle plate with the 8 bolts.
- Torque:
- 10 N*m { 102 kgf*cm, 7 ft.*lbf }
Tech Tips
Temporarily install the 8 bolts. Tighten the 2 bolts A shown in the illustration before tightening the other bolts.
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for AWD:
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Install the No. 1 oil pan baffle plate with the 7 bolts.
- Torque:
- 10 N*m { 102 kgf*cm, 7 ft.*lbf }
Tech Tips
Temporarily install the 8 bolts. Tighten the 2 bolts A shown in the illustration before tightening the other bolts.
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INSTALL OIL STRAINER SUB-ASSEMBLY
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INSTALL OIL PAN SUB-ASSEMBLY
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INSTALL OIL LEVEL SENSOR BRACKET
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INSTALL ENGINE OIL LEVEL SENSOR
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INSTALL NO. 2 OIL PAN SUB-ASSEMBLY
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INSTALL OIL PAN DRAIN PLUG
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Install a new gasket and the oil pan drain plug.
- Torque:
- 40 N*m { 408 kgf*cm, 30 ft.*lbf }
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INSTALL SPARK PLUG TUBE GASKET
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Install 6 new spark plug tube gaskets to the cylinder head cover sub-assembly.
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INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY
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INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY LH
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INSTALL FUEL PUMP SPACER GASKET
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Install a new fuel pump spacer gasket to the cylinder head cover.
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INSTALL REAR WATER BY-PASS JOINT
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Install a new O-ring to the No. 1 water outlet pipe.
Tech Tips
Apply water to the O-ring.
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Install 2 new gaskets to the rear water by-pass joint.
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Install the rear water by-pass joint with the 4 bolts and 2 nuts.
- Torque:
- 10 N*m { 102 kgf*cm, 7 ft.*lbf }
Note
Be careful that the O-ring does not get caught between the parts.
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INSTALL ENGINE COOLANT TEMPERATURE SENSOR
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INSTALL WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
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Install a new gasket to the water inlet with thermostat sub-assembly.
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Install the water inlet with thermostat sub-assembly with the 2 bolts and nut.
- Torque:
- 10 N*m { 102 kgf*cm, 7 ft.*lbf }
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INSTALL WATER OUTLET
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Install a new O-ring to the water outlet pipe sub-assembly.
Tech Tips
Apply water to the O-ring.
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Install the water outlet with the 2 bolts.
- Torque:
- 21 N*m { 214 kgf*cm, 15 ft.*lbf }
Note
Be careful that the O-ring does not get caught between the parts.
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INSTALL CRANKSHAFT PULLEY
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INSTALL OIL FILTER BRACKET SUB-ASSEMBLY
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INSTALL OIL FILTER CAP ASSEMBLY
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INSTALL OIL COOLER ASSEMBLY (w/ Oil Cooler)
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INSTALL ENGINE OIL PRESSURE SWITCH ASSEMBLY
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INSTALL CYLINDER BLOCK WATER DRAIN COCK SUB-ASSEMBLY
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Apply adhesive to the cylinder block water drain cock sub-assembly and taper screw plug.
Adhesive Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent Note
Install the cylinder block water drain cock sub-assembly and taper screw plug within 3 minutes of applying adhesive.
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*a RH Side *b LH Side Install the cylinder block water drain cock sub-assembly as shown in the illustration.
- Torque:
- 25 N*m { 255 kgf*cm, 18 ft.*lbf }
Note
Do not rotate the cylinder block water drain cock sub-assembly more than 1 revolution (360°) after tightening the cylinder block water drain cock sub-assembly to the specified torque.
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Install the cylinder block water drain cock plug to the cylinder block water drain cock sub-assembly.
- Torque:
- 12.7 N*m { 130 kgf*cm, 9 ft.*lbf }
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Install the taper screw plug.
- Torque:
- 25 N*m { 255 kgf*cm, 18 ft.*lbf }
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INSTALL CRANKSHAFT POSITION SENSOR
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INSTALL CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side of Bank 1)
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INSTALL CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Exhaust Side of Bank 1)
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INSTALL CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side of Bank 2)
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INSTALL CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Exhaust Side of Bank 2)
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INSTALL PCV VALVE
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INSTALL NO. 1 FUEL TUBE SUB-ASSEMBLY
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INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY
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INSTALL SPARK PLUG