ENGINE UNIT > REASSEMBLY |
| 1. INSTALL OIL PAN SUB-ASSEMBLY |

Apply a continuous bead of seal packing to the oil pan as illustrated.
| Area | Bead Size mm (in.) |
| A - A | 2.0 to 3.0 (0.079 to 0.118) |
| B - B | Min. Width: 7.0 (0.2756) Min. Height: 3.0 (0.1181) |
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Using several steps, temporarily tighten the 12 bolts in the sequence shown in the illustration, and then tighten the bolts to the specified torque.
| Bolt | Length mm (in.) |
| A | 35 (1.378) |
| B | 143.7 (5.657) |
| C | 119 (4.685) |
| 2. INSTALL ENGINE REAR OIL SEAL |
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Apply MP grease to a new oil seal lip.
Using SST and a hammer, tap in the new oil seal until its surface is flush the cylinder block edge.
| 3. INSTALL ENGINE OIL LEVEL SENSOR |
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Temporarily tighten the oil level sensor with the 5 bolts.
Fully tighten the A bolts first, and then tighten bolt B.
| 4. INSTALL NO. 2 OIL PAN SUB-ASSEMBLY |
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Apply a continuous bead of seal packing (Diameter 2.5 to 3.5 mm (0.098 to 0.138 in.)) to the No. 2 oil pan as illustrated.
| *1 | Seal Packing |
Temporarily tighten the No. 2 oil pan with the 10 bolts and 2 nuts.
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Fully tighten the 10 bolts and 2 nuts, as shown in the illustration.
Install a new gasket and oil pan drain plug.
| 5. INSTALL OIL PAN COVER SILENCER |
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Install the oil pan cover silencer with the 3 clips.
| 6. SET OIL FILTER BRACKET SUB-ASSEMBLY |
Check and clean the oil filter bracket installation surface.
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Install 2 new O-rings to the oil pan.
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Set the oil filter bracket to the oil pan.
| 7. INSTALL OIL COOLER ASSEMBLY |
Check and clean the oil cooler installation surface.
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Install 2 new O-rings and a new gasket to the oil filter bracket.
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Temporarily tighten the oil cooler bracket and oil cooler with the spacer and 2 bolts and 2 nuts.
Fully tighten the 2 bolts and 2 nuts.
| 8. INSTALL OIL FILTER ELEMENT |
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Clean the inside of oil filter cap, threads, and O-ring groove.
Apply a small amount of engine oil to a new O-ring and install it to the oil filter cap.
Install a new oil filter element into the oil filter cap.
Remove any dirt or foreign matter from the contact surfaces of the oil filter cap (with oil filter element) and oil filter bracket.
Install the oil filter cap (with oil filter element) to the oil filter bracket.
| 9. INSTALL OIL FILTER CAP ASSEMBLY WITH ELEMENT |
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Using SST, tighten the oil filter cap.
| 10. INSTALL CYLINDER BLOCK WATER JACKET SPACER |
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Install the cylinder block water jacket spacer to cylinder block.
| 11. INSTALL CYLINDER HEAD GASKET |
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Inspect the protrusion height of the piston heads.
Place a dial indicator on the cylinder block as shown in the illustration.
Measure the protrusion height of the piston head of each cylinder at 2 places as shown in the illustration.
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Select a new cylinder head gasket.
Select the highest protrusion height among the 8 measurements records. It is used to select a new cylinder head gasket.
| Piston Protrusion mm (in.) | Gasket Cutout | Gasket Size |
| 0.525 to 0.575 (0.020 to 0.023) | 1 | A |
| 0.576 to 0.625 (0.023 to 0.025) | 2 | B |
| 0.626 to 0.675 (0.025 to 0.027) | 3 | C |
| 0.676 to 0.725 (0.027 to 0.029) | 4 | D |
| 0.726 to 0.775 (0.029 to 0.031) | 5 | E |
Install the cylinder head gasket.
Apply seal packing (Diameter 3.5 to 4.5 mm (0.138 to 0.177 in.)) to the cylinder block side as shown in the illustration.
Place a new cylinder head gasket on the cylinder block with the Lot No. stamp facing upward.
Apply seal packing (Diameter 3.5 to 4.5 mm (0.138 to 0.177 in.)) to the top surface of the cylinder head again as shown in the illustration.

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Install the cylinder head gasket onto the cylinder block.
| 12. INSTALL CYLINDER HEAD SUB-ASSEMBLY |
Apply a light coat of engine oil to the threads of the cylinder head bolts.
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Using several passes, uniformly install and tighten the 10 cylinder head bolts and plate washers in the sequence shown in the illustration. (*1)
| *1 | Paint Mark |
Mark the front of the cylinder head bolts with paint.
Using the same sequence as step (*1), retighten the cylinder head bolts by an additional 90° and one more additional 90°.
Repeat the step above 2 more times as shown in the illustration.
Check that each paint mark is now 270° from the front.
| 13. INSTALL NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY |
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Apply engine oil to the stem end caps, valve rocker arm pivot top surfaces and valve rocker arm roller portions.
Install the 8 valve rocker arms.
| 14. INSTALL CAMSHAFT |
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Turn the crankshaft to set the key in the 70° BTDC position.
| *1 | TDC Mark |
| *2 | Key |
Apply engine oil to the camshaft journal portion and cam portion.
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Examine the front marks and numbers and check that the sequence is as shown in the illustration. Then, temporarily tighten the camshaft with the camshaft bearing caps and bolts.
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Using several steps, temporarily tighten the bolts in the sequence shown in the illustration, and then tighten the bolts to the specified torque.
| 15. INSTALL CHAIN DAMPER SPRING |
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Install the chain damper spring to the chain tensioner plate.
| 16. INSTALL NO. 2 CHAIN SUB-ASSEMBLY |
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| *1 | TDC Mark |
| *2 | Key |
| *3 | Oil Pump Shaft |
| *4 | Flat Faces |
Align the crankshaft key with the TDC mark on the cylinder block.
Rotate the oil pump shaft so that the flat faces left when viewing the cylinder block from the front.
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Align the orange mark links with the timing marks of each gear as shown in the illustration.
| *1 | Timing Mark |
| *2 | Mark Link |
| *3 | Oil Pump Drive Gear |
| *4 | Oil Pump Drive Shaft Gear |
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Install the sprockets onto the crankshaft and oil pump shaft with the chain wrapped on the gears.
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Insert a 4 mm (0.157 in.) diameter bar into the adjusting hole on the oil pump drive shaft gear to lock the gear in position, and then tighten the nut.
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Install the chain tensioner plate with the chain damper spring to the pin.
| *1 | Tensioner Plate |
| *2 | Damper Spring |
| *3 | Pin |
| *4 | Pivot Hole |
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Check that the mark plate and timing mark are in the positions shown in the illustration.
| *1 | Timing Mark |
| *2 | Mark Link |
| *3 | TDC Mark |
| *4 | Key |
| 17. INSTALL CHAIN SUB-ASSEMBLY |
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Turn the camshaft to set the straight pin in the position shown in the illustration.
| *1 | Straight Pin |
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Turn the crankshaft to set the key in the position shown in the illustration.
| *1 | TDC Mark |
| *2 | Key |
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Align the chain's 2 orange mark plates with the timing mark on the camshaft timing sprocket, and the yellow mark plate with the timing mark on the crankshaft timing sprocket.
| *1 | Timing Mark |
| *2 | Orange Mark Plate |
| *3 | Yellow Mark Plate |
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Install the chain, camshaft timing sprocket and crankshaft sprocket together onto the engine.
| *1 | Timing Mark |
| *2 | Orange Mark Plate |
| *3 | Yellow Mark Plate |
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Using SST, fix the camshaft timing sprocket, and install the camshaft timing sprocket with the 3 bolts.
| 18. INSTALL NO. 1 CHAIN VIBRATION DAMPER |
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Install the chain vibration damper with the 2 bolts.
| 19. INSTALL CHAIN TENSIONER SLIPPER |
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Install the chain tensioner slipper onto the cylinder block.
| 20. INSTALL NO. 1 CHAIN TENSIONER ASSEMBLY |
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Push in the plunger until the groove is aligned with the tensioner hole, and then insert a 1.1 mm (0.043 in.) diameter bar.
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Install the chain tensioner with the 2 bolts.
Remove the 1.1 mm (0.043 in.) diameter bar from the chain tensioner.
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Check that the mark plate and timing mark are in the positions shown in the illustration.
| *1 | Timing Mark |
| *2 | Orange Mark Plate |
| *3 | Yellow Mark Plate |
| 21. INSTALL WATER INLET HOUSING |
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Install a new gasket to the water inlet housing.
Install the water inlet housing to the timing chain cover with the 3 bolts.
| 22. INSTALL TIMING CHAIN COVER SUB-ASSEMBLY |

Apply seal packing to the engine body and oil pump as shown in the illustration below.
Install the timing chain cover with the 20 bolts and 2 nuts, as shown in the illustration.

| Bolt | Length mm (in.) |
| A | 25 (0.984) |
| B | 35 (1.378) |
| C | 40 (1.575) |
| 23. INSTALL CRANKSHAFT DAMPER SUB-ASSEMBLY |
Align the key with the key groove of the crankshaft damper, and slide the crankshaft damper to the crankshaft.
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Using SST, secure the crankshaft damper.
Tighten the bolt to the specified torque.
| 24. INSTALL NO. 2 TIMING CHAIN COVER |
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Install the No. 2 timing chain cover with the clip.
| 25. INSTALL ENGINE MOUNTING BRACKET RH |
Temporarily tighten the engine mounting bracket with the 4 bolts.
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Fully tighten the 4 bolts, as shown in the illustration.
| 26. INSTALL ENGINE OIL PRESSURE SWITCH ASSEMBLY |
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| *1 | Adhesive |
Apply adhesive to 2 or 3 threads of the oil pressure switch.
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Using a 24 mm deep socket wrench, install the oil pressure switch.
| *1 | 24 mm Deep Socket Wrench |
| 27. INSTALL THERMOSTAT |
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Install a new gasket onto the thermostat.
Install the thermostat with the jiggle valve facing upward.
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Install the water inlet with the 3 bolts.
| 28. INSTALL WATER OUTLET SUB-ASSEMBLY |
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Install a new gasket to the cylinder head.
Install the water outlet with the 2 bolts and 2 nuts.
| 29. INSTALL WATER TEMPERATURE SENSOR |
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| *1 | 19 mm Deep Socket Wrench |
Install a new gasket to the water temperature sensor.
Using a 19 mm deep socket wrench, install the water temperature sensor.
| 30. CHECK VALVE CLEARANCE |
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Set the No. 1 cylinder to TDC/Compression.
| *1 | Timing Mark |
| *2 | TDC Mark |
Turn the crankshaft pulley until the grooves of the crankshaft damper and oil pump are aligned.
Check that the timing mark of the camshaft timing sprocket is in the position shown in the illustration.
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Check the valve clearance of the No. 1 cylinder exhaust valve and the No. 2 cylinder intake valve.
| *1 | No. 1 Exhaust |
| *2 | No. 2 Intake |
| *3 | Camshaft |
| *4 | Feeler Gauge |
Using a feeler gauge, measure the clearance between the camshaft and No. 1 valve rocker arm.
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Check the valve clearance of the No. 1 cylinder intake valve and the No. 3 cylinder exhaust valve.
| *1 | No. 1 Intake |
| *2 | No. 3 Exhaust |
| *3 | Camshaft |
| *4 | Feeler Gauge |
Turn the crankshaft by a further 180° clockwise.
Using a feeler gauge, measure the clearance between the camshaft and No. 1 valve rocker arm as shown in the illustration.
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Check the valve clearances of the No. 3 cylinder intake valve and No. 4 cylinder exhaust valve.
| *1 | No. 3 Intake |
| *2 | No. 4 Exhaust |
| *3 | Camshaft |
| *4 | Feeler Gauge |
Turn the crankshaft clockwise by a further 180°.
Using a feeler gauge, measure the clearance between the camshaft and No. 1 valve rocker arm as shown in the illustration.
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Check the valve clearances of the No. 2 cylinder intake valve and No. 4 cylinder intake valve.
| *1 | No. 2 Exhaust |
| *2 | No. 4 Intake |
| *3 | Camshaft |
| *4 | Feeler Gauge |
Turn the crankshaft clockwise by a further 180°.
Using a feeler gauge, measure the clearance between the camshaft and No. 1 valve rocker arm.
| 31. ADJUST VALVE CLEARANCE |
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Using SST and a screwdriver, loosen the valve adjusting nut while keeping the valve adjusting screw in position.
| *1 | Adjusting Screw |
| *2 | Lock Nut |
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Adjust valve clearance (intake side).
| *1 | Adjusting Screw |
| *2 | Lock Nut |
| *3 | Feeler Gauge |
Insert a feeler gauge (0.14 mm (0.006 in.)) between the camshaft and No. 1 valve rocker arm, and turn the valve adjusting screw to adjust it.
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Using SST and a screwdriver, tighten the valve adjusting nut while keeping the valve adjusting screw in position.
| *1 | Adjusting Screw |
| *2 | Lock Nut |
Adjust the valve clearance (exhaust side).
| 32. INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY |
Install the cylinder head gasket onto the cylinder head cover.
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Apply seal packing to the 4 locations shown in the illustration, and then install the cylinder head cover.
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Temporarily tighten the cylinder head cover with the 12 bolts.
Fully tighten the 12 bolts, as shown in the illustration.
| 33. INSTALL OIL FILLER CAP SUB-ASSEMBLY |
Install the oil filler cap gasket onto the oil filler cap.
Install the oil filler cap onto the cylinder head cover.