ENGINE UNIT > REASSEMBLY |
| 1. INSTALL OIL STRAINER SUB-ASSEMBLY |
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Install the oil strainer to the oil pan with the 2 bolts.
| 2. INSTALL NO. 1 OIL PAN BAFFLE PLATE |
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Install the No. 1 oil pan baffle plate to the oil pan with the 6 bolts.
| 3. INSTALL OIL PAN SUB-ASSEMBLY |
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Install a new gasket to the cylinder block.
Apply seal packing to the places shown in the illustration.

| *a | Continuous Line Aria | *b | Dashed Line Aria |
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Install the oil pan with the 10 bolts.
| Item | Length |
| Bolt A | 55 mm (2.165 in.) |
| Bolt B | 30 mm (1.181 in.) |
| Bolt C | 30 mm (1.181 in.) |
Wipe off any excess seal packing with a clean piece of cloth.
| 4. INSTALL NO. 2 OIL PAN SUB-ASSEMBLY |
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Apply seal packing in a continuous bead to a new No. 2 oil pan as shown in the illustration.
| *1 | Seal Packing |
| *a | Bead Diameter |
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Install the No. 2 oil pan with the 9 bolts.
Install a new gasket and the oil pan drain plug.
| 5. INSTALL CYLINDER BLOCK WATER JACKET SPACER |
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Install the cylinder block water jacket spacer to the cylinder block as shown in the illustration.
| 6. INSTALL CYLINDER HEAD GASKET |
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Apply seal packing to a new cylinder head gasket as shown in the illustration.
| *1 | Bead |
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Place the gasket on the cylinder block surface with the Lot No. stamp facing upward.
| *a | Lot No. |
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| 7. INSTALL CYLINDER HEAD SUB-ASSEMBLY |
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Apply a light coat of engine oil to the bolt threads and the area beneath the bolt heads that come in contact with the washers.
Install the bolts and plate washers to the cylinder head.
Using several steps, uniformly install and tighten the 10 cylinder head bolts and 10 plate washers with a 10 mm bi-hexagon wrench in the order shown in the illustration.
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Mark the front side of the cylinder head bolts with paint.
Retighten the cylinder head bolts an additional 90°, and then once more 90° as shown in the illustration.
| *a | Paint Mark |
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Check that the paint mark is now at a 180° angle to the front.
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After tightening the cylinder head bolts, wipe off the seal packing material that seeped out from the contact surface between the cylinder head and cylinder block.
| *a | Direction to wipe off |
| *b | Before wiping off |
| *c | After wiping off |
| 8. INSTALL VALVE LASH ADJUSTER ASSEMBLY |
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Place the lash adjuster into a container filled with engine oil.
| *1 | Plunger |
| *2 | Check Ball |
| *3 | Low Pressure Chamber |
| *4 | High Pressure Chamber |
| *a | Correct |
| *b | Incorrect |
| *c | Taper Part |
Insert the tip of SST into the lash adjuster plunger and use the tip to press down on the check ball inside the plunger.
Squeeze SST and the lash adjuster together to move the plunger up and down 5 to 6 times.
Check the movement of the plunger and bleed it.
After bleeding, remove SST. Then, try to press the plunger quickly and firmly by hand.
Install the lash adjusters.
| 9. INSTALL NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY |
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Apply engine oil to the lash adjuster tip and valve stem cap end.
Make sure that the valve rocker arms are installed as shown in the illustration.
| *1 | Valve Rocker Arm |
| *2 | Lash Adjuster |
| *3 | Valve Stem |
| *4 | Valve Stem Cap |
| 10. INSTALL CAMSHAFT |
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Clean the camshaft journals.
Apply a light coat of engine oil to the camshaft journals and camshaft housing.
Install the camshaft to the camshaft housing.
| 11. INSTALL NO. 2 CAMSHAFT |
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Clean the camshaft journals.
Apply a light coat of engine oil to the camshaft journals and camshaft housing.
Install the No. 2 camshaft to the camshaft housing.
| 12. INSTALL CAMSHAFT BEARING CAP |
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Apply engine oil to the bearing caps.
Install the 5 bearing caps to the camshaft housing.
Tighten the 5 bolts in the order shown in the illustration.
| 13. INSTALL CAMSHAFT HOUSING SUB-ASSEMBLY |
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Apply seal packing in a continuous bead as shown in the illustration.
| *1 | Seal Packing |
| *a | Bead Diameter |
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Set the crankshaft in the position (40° BTDC) shown in the illustration.
| *1 | Timing Mark |
| *a | TDC |
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Set the camshaft and No. 2 camshaft as shown in the illustration.
| *1 | Knock Pin |
Install the camshaft housing and tighten the 18 bolts in the order shown in the illustration.
| 14. INSTALL CAMSHAFT TIMING GEAR ASSEMBLY |
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Check that the knock pin is installed on the camshaft.
Put the camshaft timing gear and camshaft together by aligning the key groove and straight pin.
| *1 | Straight Pin |
| *2 | Key Groove |
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Tighten the flange bolt with the camshaft timing gear secured in place.
| *a | Hold |
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Check that the camshaft timing gear can move in the retard direction (clockwise) and locks in the most retarded position.
| *a | Lock |
| 15. INSTALL CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY |
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Check that the knock pin is installed on the No. 2 camshaft.
Put the camshaft timing exhaust gear and No. 2 camshaft together by aligning the key groove and straight pin.
| *1 | Straight Pin |
| *2 | Key Groove |
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Tighten the flange bolt with the camshaft timing exhaust gear secured in place.
| *a | Hold |
Make sure that the camshaft timing exhaust gear is locked.
| 16. INSTALL TIMING CHAIN GUIDE |
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Install the timing chain guide with the 2 bolts.
| 17. INSTALL CHAIN SUB-ASSEMBLY |
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Set the crankshaft in the position (90° ATDC) shown in the illustration.
| *1 | Timing Mark |
| *a | TDC |
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Set the camshaft timing gear and camshaft timing exhaust gear in the positions (20° ATDC) shown in the illustration.
| *1 | Timing Mark |
| *a | TDC |
Set the crankshaft in the position (20° ATDC) shown in the illustration.
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Align the timing marks of the camshaft with the mark plates of the timing chain and install the timing chain.
| *1 | Mark Plate |
| *2 | Timing Mark |
| 18. INSTALL TIMING CHAIN TENSION ARM |
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Install the timing chain tension arm with the bolt.
| 19. INSTALL NO. 1 CHAIN TENSIONER ASSEMBLY |
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Install a new gasket to the cylinder head.
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Install the No. 1 chain tensioner with the 2 nuts.
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Install the No. 2 chain vibration damper with the 2 bolts.
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Remove the bar from the No. 1 chain tensioner.
| *1 | Bar |
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Turn the crankshaft approximately 20° counterclockwise to set it to TDC. Make sure that the timing marks and mark plates are correctly positioned and that the chain is securely fit into the tension arm, guide and vibration damper.
| *1 | Mark Plate |
| *2 | Timing Mark |
| *a | TDC |
| *b | Turn |
| 20. INSTALL TIMING CHAIN COVER OIL SEAL |
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Using SST and a hammer, tap in a new oil seal until its surface is flush with the timing chain cover edge.
Apply a light coat of MP grease to the timing chain cover oil seal lip.
| 21. INSTALL NO. 2 WATER INLET HOUSING GASKET |
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Install a new gasket to the water inlet.
| 22. INSTALL WATER INLET |
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Temporarily install the water inlet with the 3 bolts.
Fully tighten the 3 bolts in the order shown in the illustration.
| 23. INSTALL TIMING CHAIN COVER SUB-ASSEMBLY |
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Apply adhesive to 2 or 3 threads of the plug.
| *1 | Adhesive |
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Using an 8 mm socket hexagon wrench, install the plug.
Remove any old packing material remaining on the sealing surfaces before applying seal packing.
Clean and degrease the contact surfaces of the timing chain cover, camshaft housing, cylinder head, cylinder block and oil pan and confirm that no oil, moisture, or other foreign matter remains on the surfaces.

| *a | Clean and degrease | - | - |
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Install 2 new O-rings.
Apply seal packing to the timing chain cover as shown in the following illustration.

| *a | Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent | *b | Toyota Genuine Seal Packing Black 1282B, Three Bond 1282B or equivalent |
| Area | Seal Packing Diameter | Seal Packing |
| Continuous Line Area Except A - A and B - B | 3.5 to 4.5 mm (0.138 to 0.177 in.) | Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent |
| Dashed Line Area | 2.0 to 3.0 mm (0.0787 to 0.118 in.) | Toyota Genuine Seal Packing Black 1282B, Three Bond 1282B or equivalent |
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Align the oil pump drive rotor the crankshaft as shown in the illustration.
Install the spline and chain cover to the crankshaft.
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Temporarily install the engine mounting bracket RH with the 3 bolts.
| Item | Length |
| Bolt A | 80 mm (3.150 in.) |
| Bolt B | 40 mm (1.575 in.) |
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Temporarily install the water pump and a new water pump gasket to the timing chain cover with the 5 bolts.
| Item | Length |
| Bolt A | 40 mm (1.575 in.) |
| Bolt B | 40 mm (1.575 in.) |
| Bolt F | 18 mm (0.709 in.) |
Fully tighten the 2 F bolts shown in the illustration.
Temporarily tighten the timing chain cover with the 21 bolts and a seal washer.

| *1 | Seal Washer | - | - |
| Item | Length |
| Bolt A | 40 mm (1.575 in.) |
| Bolt B | 40 mm (1.575 in.) |
| Bolt C | 35 mm (1.378 in.) |
| Bolt D, E | 25 mm (0.984 in.) |
Fully tighten the timing chain cover with the 27 bolts as shown in the illustration.
| 24. INSTALL CRANKSHAFT PULLEY |
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Align the pulley set key with the key groove of the crankshaft pulley, and then slide on the crankshaft pulley.
Using SST, install the crankshaft pulley bolt.
| 25. INSTALL WATER PUMP PULLEY |
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Using SST, install the water pump pulley with the 4 bolts.
| 26. INSTALL OIL FILTER ELEMENT |
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Clean the inside of the oil filter cap, the threads and O-ring groove.
| *1 | O-ring |
| *2 | Oil Filter Element |
Apply a small amount of engine oil to a new O-ring and install it to the oil filter cap.
Set a new oil filter element to the oil filter cap.
Remove any dirt or foreign matter from the installation surface of the engine.
Apply a small amount of engine oil to the O-ring again and temporarily tighten the oil filter cap.
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Using SST, tighten the oil filter cap.
| *a | No Clearance |
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Apply a small amount of engine oil to a new drain plug O-ring, and install it to the oil filter cap.
| *1 | Oil Filter Drain Plug |
| *2 | O-ring |
Install the oil filter drain plug.
| 27. INSTALL ENGINE COOLANT TEMPERATURE SENSOR |
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Install a new gasket to the engine coolant temperature sensor.
Using a 19 mm deep socket wrench, install the engine coolant temperature sensor.
| 28. INSTALL KNOCK SENSOR |
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Install the knock sensor with the bolt.
| 29. INSTALL ENGINE OIL PRESSURE SWITCH ASSEMBLY |
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Apply adhesive to 2 or 3 threads of the oil pressure switch.
| *1 | Adhesive |
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Using a 24 mm deep socket wrench, install the oil pressure switch.
| 30. INSTALL CRANKSHAFT POSITION SENSOR |
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Apply a light coat of engine oil to the O-ring of the sensor.
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Install the crankshaft position sensor with the bolt.
| 31. INSTALL CAMSHAFT BEARING CAP OIL HOLE GASKET |
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Install the 2 new camshaft bearing cap oil hole gaskets to the No. 1 camshaft bearing cap.
| 32. INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY |
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Install a new gasket to the cylinder head cover.
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Apply seal packing as shown the illustration.
| *1 | Seal Packing |
| *a | Bead Diameter |
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Temporarily install the cylinder head cover with 2 new seal washers and the 18 bolts.
| *1 | Seal Washer |
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Apply a light coat of engine oil to the O-rings of the No. 1 crankshaft position sensors.
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Temporarily install the 2 No. 1 crankshaft position sensors with the 2 bolts.
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Fully tighten the 20 bolts in the order shown in the illustration.
| 33. INSTALL VENTILATION SYSTEM GROMMET |
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Install the ventilation system grommet to the cylinder head cover.
| 34. INSTALL VENTILATION VALVE SUB-ASSEMBLY |
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Install the ventilation valve.
| 35. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY |
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Apply a light coat of engine oil to 2 new O-rings, and then install them onto the camshaft timing oil control valves.
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Install the 2 camshaft timing oil control valves with the 2 bolts.
| 36. INSTALL SPARK PLUG |
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Using a 14 mm spark plug wrench, install the 4 spark plugs.
| *1 | 14 mm Spark Plug Wrench |
| 37. INSTALL OIL FILLER CAP GASKET |
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Install the gasket to the cap.
| 38. INSTALL OIL FILLER CAP SUB-ASSEMBLY |
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Install the oil filler cap.
| 39. INSTALL CRANKSHAFT BEARING (w/ Stop and Start System) |
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Visually check the crankshaft bearing installation surface for damage, deformation, and cracks.
If damaged, smooth the surface with 400-grit sandpaper.
Using a vernier caliper, measure the diameter as shown in the illustration.
Install the snap ring to the crankshaft bearing.
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Using SST, hold the crankshaft.
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Using SST, uniformly tighten the 4 bolts through several steps in the order shown in the illustration to install a new bearing to the crankshaft.
| *1 | Snap Ring |
| 40. INSTALL REAR ENGINE OIL SEAL |
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Apply seal packing in a continuous bead as shown in the illustration.
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Wipe off the excess seal packing, leaving only the specified amount in the areas shown in the illustration.
| *1 | Seal Packing |
Apply MP grease to the lip of a new rear engine oil seal.
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Using SST and a hammer, tap in the rear engine oil seal until its surface is flush with the cylinder block and oil pan.