Page 43 of 2053
M162 ENGINE MECHANICAL 1B1 -- 11
D AEW OO M Y_2000
17. Disconnect the terminals from starter motor and re-
move the starter motor.
18. Disconnect the engine main harness ground.
19. Disconnect the engine ground wire.
20. Disconnect following sensors connector.
DHFM sensor.
DCoolant temperature sensor.
D2 knock sensors.
DCamshaft and crankshaft sensors.
21. After removing the ignition coil cover, disconnect the
ignition coil connector.
22. Remove the harness cover and disconnect the 6 in-
jection valve connectors. Disconnect the main har-
ness.
Page 44 of 2053
1B1 -- 12 M162 ENGINE MECHANICAL
D AEW OO M Y_2000
23. Separate the hose toward engine from canister
purge solenoid valve.
24. Remove the canister. Refer toSection 1F1, Engine
Control.
25. Remove the automatic transmission oil cooler line
retaining bolts from the automatic transmission side
and oil pan side
26. Remove the automatic transmission oil cooler line
retaining bolts from engine side and oil pan side.
27. Separate the vacuum hose for brake booster.
28. Separate the other vacuum hoses.
29. By rotating the crankshaft from the front of engine,
remove the 6 torque converter mounting bolts from
the engine ring gear plate.
Installation Notice
Tightening Torque
42 NSm (31 lb-ft)
Page 46 of 2053
1B1 -- 14 M162 ENGINE MECHANICAL
D AEW OO M Y_2000
CRANKCASE VENTILATIONSYSTEM
1 Crankcase
2 Air Admission Port in Crankcase
3 Oil Drain Port
4 Filter
5 Gasket
6 A/C Bracket
7 Oil Drain Pipe
8OilPan
9 Air Admission Line
10 Vent Line
11 Restriction Hole (Diameter = 2 mm)
12 Intake Manifold13 Intake Air Duct (Cross Pipe)
14 Cylinder Head Cover
15 Oil Separator
16 Oil Separator
17 Air Admission and Vent Connection
18 Air Admission and Vent Connection
19 Throttle Valve
20 Vent Line
A Fresh Air
B Blowby Gas in Partial Load
C Blowby Gas in Full Load
Page 47 of 2053

M162 ENGINE MECHANICAL 1B1 -- 15
D AEW OO M Y_2000
Operation at Idling and Mid-Load
DIt show that the throttle valve (19) is closed or very
partially opened and the vacuum pressure in intake
manifold is high.
The blowby gas in the crankcase in partial load flows
into the intake manifold through the vent line (20) af-
ter passing the air conditioner bracket (6) and the fil-
ter (4). The air reentered into the intake manifoldwill
be dilluted on the flow through the restriction hole (11)
in the vent line (10).
The circulated engine oil is separated at the air condi-
tioner bracket (6) and then returns into the oil pan
through the drain pipe (7).
The vacuum pressure generated at the crankcase
sucks fresh air from intake air line (13) through the air
admission and vent connection (17,18).
The fresh air prevents engine oil from being contami-
nated and the air admission and vent connection
(17,18) is designed to control the rapid pressure
changes in intake air line (13).
Operation at Full-Load
DThe throttle valve (19) is fully opened.
All the blowby gases flow into the intake air duct (13)
after passing through the oil separator (15,16) of the
cylinder head cover (14) when fully loaded. This dil-
luted air will be supplied to the combustion chamber
through the intake manifold (12).
Page 57 of 2053
M162 ENGINE MECHANICAL 1B1 -- 25
D AEW OO M Y_2000
Removal & Installation Procedure
1. Remove the intake air duct.
Installation Notice
Tightening Torque
9--11NSm (80 -- 97 lb-in)
2. Remove the spark plug cover.
Installation Notice
Tightening Torque
9--11NSm (80 -- 97 lb-in)
Notice:Unscrew the seven (M6 x 60) bolts and remove
the spark plug cover.
3. Remove the spark plug connector and ignition cable.
4. Unscrew all the bolts (2,3) and remove the head cov-
er and the gasket.
Installation Notice
Tightening Torque
9--11NSm (80 -- 97 lb-in)
Notice:Replace the gasket with a new one if necessary.
5. Installation should follow the removal procedure in
the reverse order.
6. Check for oil leaks by operating the engine.
Page 62 of 2053
1B1 -- 30 M162 ENGINE MECHANICAL
D AEW OO M Y_2000
7. Remove the cylinder head bolts in numerical order
usingallenwrenchsocket617589001000.
Installation Notice
TihtiT
1st step: 55 NSm
(41 lb-ft)
Tightening Torque2nd step: 90°
3rd step: 90°
8. Check the length of the cylinder head bolt.
Installation Notice
Length(L)New 160±0.8 mmLength(L)Max. 162±0.7 mm
DReplace the bolt if the measured length exceed
the max. length.
DApply the oil to the thread surface of bolt.
9. Carefully remove the cylinder head and check the
mating surface.
10. Installation should follow the removal procedure in
the reverse order.
Page 64 of 2053

1B1 -- 32 M162 ENGINE MECHANICAL
D AEW OO M Y_2000
Removal & Installation Procedure
1. Put the alignment marks (arrows) on the timing chain
and camshaft sprocket.
2. Unscrew the A/C bracket bolts (1) and remove the
bracket.
Installation Notice
Tightening Torque
22.5 -- 27.5 NSm
(16.6 -- 20.3 lb-ft)
3. Remove the cooling fan and the viscous clutch. Un-
screw the three bolts from the cooling fan bracket and
remove the bracket (arrows).
Installation Notice
Tightening Torque
22.5 -- 27.5 NSm
(16.6 -- 20.3 lb-ft)
4. Remove the timing gear case cover after unscrewing
the bolts (3) and (4) from the timing gear case cover
and the bolt (9) from the oil pan.
Notice:Be careful not to damage the oil pan gasket.
Installation Notice
TighteningTorque
Bolt (3, 4): 22.5 -- 27.5 NSm
(16.6 -- 20.3 lb-ft)
TighteningTorqueBolt (9): 9 -- 11 NSm
(80 -- 97 lb-in)
DApply the sealant after cleaning the timing gear
case cover surface.
DBe careful not to stain the oil chamber of chain
tensioner with the sealant.
5. Installation should follow the removal procedure in
the reverse order.
6. Warm up the engine and check for oil leaks.
Page 66 of 2053

1B1 -- 34 M162 ENGINE MECHANICAL
D AEW OO M Y_2000
Tools Required
601 589 03 43 00 Crankshaft Rear Seal Installer
Removal & Installation Procedure
1. Unscrew the bolts (1) and (5) and remove the closing
cover by pulling the rear cover lug (arrows).
Notice:Be careful not to damage the oil pan gasket.
2. Clean the sealing surface of the crankcase and the
rear sealing cover.
3. Check the radial shaft seal and replace it if necessary.
4. Apply the Loctite 573 to the rear cover sealing sur-
face.
5. Apply the engine oil to the dust lip of the radial shaft
seal.
Notice:Do not use the grease.
6. Install the crankshaft rear radial seal and the crank-
shaft sealing rear cover, using crankshaft rear seal in-
staller 601 589 03 43 00.
7. Install the crankshaft sealing rear cover mounting
bolts and remove the crankshaft rear seal installer
601 589 03 43 00.
Installation Notice
Tightening Torque
9--11NSm (80 -- 97 lb-in)
8. Installation should follow the removal procedure in
the reverse order.