Page 689 of 2000
EM–522GR-FE ENGINE MECHANICAL – ENGINE UNIT
EM
DISASSEMBLY
1. REMOVE OIL FILLER CAP SUB-ASSEMBLY
2. REMOVE SPARK PLUG
3. REMOVE CAMSHAFT TIMING CONTROL VALVE
ASSEMBLY (See page ES-440)
4. REMOVE VVT SENSOR (See page ES-443)
5. REMOVE WATER OUTLET
(a) Remove the 2 bolts, 4 nuts and water outlet.
(b) Remove the 2 gaskets and O-ring.
6. REMOVE OIL PIPE
(a) Remove the bolt, 2 union bolts and oil pipe.
(b) Remove the oil control valve filter RH and gaskets.
7. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
(for Bank 1)
(a) Remove the 12 bolts, cylinder head cover and
gasket.
HINT:
Make sure the removed parts are returned to the
same places they were remove a from.
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2GR-FE ENGINE MECHANICAL – ENGINE UNITEM–55
EM
(b) Set the timing mark on the crank angle sensor plate
to the RH block bore center line (TDC /
compression).
(c) Check that the timing marks of the camshaft timing
gears are aligned with the timing marks of the
bearing cap as shown in the illustration. If not, turn
the crankshaft 1 revolution (360
) and align the
timing marks as above.
23. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY
(a) Move the stopper plate upward to release the lock,
and push the plunger deep into the tensioner.
(b) Move the stopper plate downward to set the lock,
and insert a hexagon wrench into the stopper plate
hole.
(c) Remove the 2 bolts and chain tensioner.
24. REMOVE CHAIN TENSIONER SLIPPER
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A132113E01
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Page 698 of 2000

2GR-FE ENGINE MECHANICAL – ENGINE UNITEM–61
EM
39. REMOVE VALVE LASH ADJUSTER ASSEMBLY
(a) Remove the 24 valve lash adjusters from the
cylinder head.
HINT:
Arrange the removed parts in the correct order.
40. REMOVE CYLINDER HEAD SUB-ASSEMBLY (for
Bank 1)
(a) Using a 10 mm bi-hexagon wrench, uniformly
loosen the 8 bolts in the sequence shown in the
illustration. Remove the 8 cylinder head bolts and
plate washers.
NOTICE:
• Be careful not to drop washers into the
cylinder head.
• Head warpage or cracking could result from
removing bolts in an incorrect order.
HINT:
Be sure to keep the removed parts separate for
each installation position.
(b) Remove the cylinder head and gasket.
41. REMOVE CYLINDER HEAD SUB-ASSEMBLY (for
Bank 2)
(a) Uniformly loosen and remove the 2 bolts in the
sequence shown in the illustration.
(b) Using a 10 mm bi-hexagon wrench, uniformly
loosen the 8 bolts in the sequence shown in the
illustration. Remove the 8 cylinder head bolts and
plate washers.
NOTICE:
• Be careful not to drop washers into the
cylinder head.
• Head warpage or cracking could result from
removing bolts in an incorrect order.
HINT:
Be sure to keep the removed parts separate for
each installation position.
(c) Remove the cylinder head and gasket.
42. REMOVE WATER INLET PIPE
(a) Disconnect the knock sensor wire.
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2GR-FE ENGINE MECHANICAL – ENGINE UNITEM–63
EM
(a) Using a 10 mm hexagon wrench, remove the 4
screw plugs and 4 gaskets.
49. REMOVE NO. 2 STRAIGHT SCREW PLUG
(a) Using a 14 mm hexagon wrench, remove the 2
screw plugs and 2 gaskets.
NOTICE:
If water leaks from the No. 2 screw plug or the
plug is corroded, replace it.
50. REMOVE CRANKSHAFT POSITION SENSOR
(a) Remove the bolt and crankshaft position sensor.
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2GR-FE ENGINE MECHANICAL – ENGINE UNITEM–113
EM
(h) Step 2
(1) Mark the front side of each connecting cap bolt
with paint.
(2) Tighten the cap bolts another 90
as shown in
the illustration in the order in step 1.
(3) Check that the painted mark is now at a 90
angle to the front.
(i) Check that the crankshaft turns smoothly.
9. INSTALL CRANKSHAFT POSITION SENSOR
(a) Install the crankshaft position sensor with the bolt.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
10. INSTALL NO. 2 STRAIGHT SCREW PLUG
(a) Using a 14 mm hexagon wrench, install 2 new
gaskets and the 2 straight screw plugs.
Torque: 80 N*m (816 kgf*cm, 59 ft.*lbf)
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A129663
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Page 767 of 2000
EM–1302GR-FE ENGINE MECHANICAL – ENGINE UNIT
EM
54. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE
ASSEMBLY
(a) Install the 4 camshaft timing oil control valves with
the 4 bolts.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
55. INSTALL VVT SENSOR
(a) Install the 4 VVT sensors with the 4 bolts.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
56. INSTALL SPARK PLUG
(a) Install the 6 spark plugs.
Torque: 18 N*m (184 kgf*cm, 13 ft.*lbf)
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Page 831 of 2000

EC–222AZ-FE EMISSION CONTROL – AIR FUEL RATIO SENSOR
EC
REMOVAL
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
2. REMOVE AIR FUEL RATIO SENSOR (for Bank 1
Sensor 1)
(a) Disconnect the sensor connector.
(b) Using SST, remove the sensor from the exhaust
manifold.
SST 09224-00010
INSPECTION
1. INSPECT AIR FUEL RATIO SENSOR (for Bank 1
Sensor 1)
(a) Measure the resistance of the sensor.
Standard resistance
If the resistance is not as specified, replace the
sensor.
INSTALLATION
1. INSTALL AIR FUEL RATIO SENSOR (for Bank 1
Sensor 1)
(a) Using SST, install the sensor to the exhaust
manifold.
SST 09224-00010
Torque: 40 N*m (408 kgf*cm, 30 ft.*lbf) for use
with SST
44 N*m (449 kgf*cm, 32 ft.*lbf) for use
without SST
HINT:
• Use a torque wrench with a fulcrum length of 30
cm (11.81 in.).
• Make sure SST and wrench are connected in a
straight line.
(b) Connect the sensor connector.
2. CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL
3. CHECK FOR EXHAUST GAS LEAKS
A124797E01
A133069E01
Tester Connection Specified Condition
1 (HA1A) - 2 (+B) 1.8 to 3.4
at 20C (68F)
1 (HA1A) - 4 (A1A-) 10 k
or higher
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Page 838 of 2000
EC–242GR-FE EMISSION CONTROL – AIR FUEL RATIO SENSOR
EC
INSTALLATION
1. INSTALL AIR FUEL RATIO SENSOR (for Sensor 1)
(a) Using SST, install the sensor to the exhaust
manifold.
SST 09224-00010
Torque: 40 N*m (408 kgf*cm, 30 ft.*lbf) for use
with SST
44 N*m (449 kgf*cm, 32 ft.*lbf) for use
without SST
HINT:
• Use a torque wrench with a fulcrum length of 30
cm (11.81 in.).
• Make sure SST and a wrench are connected in a
straight line.
(b) Connect the sensor connector.
2. CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL
3. CHECK FOR EXHAUST GAS LEAKS
A136120E01