Page 185 of 1463
1B1-112 M162 ENGINE MECHANICAL
Service Data Standard
Measurement of Cylinder Bore
1. Clean the cylinder wall.
2. Using a internal diameter gauge, measure the bore size in
axial and transverse direction at three points (1,2,3).
1,2,3. Measuring Points
A . Axial Direction
B. Transverse Direction
a. Location of the No.1 Piston Ring at TDC
b. Location of the Piston BDC
c. Location of the Oil Ring at BDC
Chamfer Angle
Wear Limit in Longitudinal and Transverse Direction
Permissible Deviation of Cylinder Out-of-round
Permissible Deviation of Rectangular Cylinder Height (Except Chamfered Area)
Basic Peak-to-valley Height After Final Honing and Brushing
Chamfer Angle
Honing AngleWhen new
Wear limit0.1 mm
0.007 mm
0.05 mm
0.05 mm
0.003 - 0.006 mm
60°
50° ± 10°
Page 186 of 1463
M162 ENGINE MECHANICAL 1B1-113
CRANKCASE MATING SURFACE
Service Data Standard
Height of The Crankcase “H” (When new)
Minimum Height After Milling
Flatness
Permissible Deviation of Parallelism of The
Upper to Lower Mating Surface
Peak-to-valley HeightCrankcase Upper Mating Surface
Crankcase Lower Mating Surface
Axial Direction
Transverse Direction
Crankcase Upper Mating Surface
Crankcase Lower Mating Surface282.25 - 282.35mm
281.95mm
0.03mm
0.04mm
0.1mm
0.05mm
0.005 - 0.020mm
0.025mm
Page 187 of 1463
1B1-114 M162 ENGINE MECHANICAL
Chamfering Procedure
1. Chamfer angle : 60°
2. Polish the lower chamfered area evenly with a grinder after
finishing the chamfering with a suitable tool (e.g., hand milling
cutter).
Page 188 of 1463
M162 ENGINE MECHANICAL 1B1-115
CYLINDER HEAD MATING SURFACE
Preceding Work : Removal of valves
Service Data Standard
Notice
Do not exceed 0.4mm for the milling of the mating surface of crankcase and cylinder head.Overall Height of Cylinder Head
Minimum Height After Machining
Flatness
Distance ‘T’
(Between Camshaft Bearing
and Valve Stem)Axial Direction
Transverse Direction
Standard Size
Repair Size135.9 - 136.0 mm
135.5 mm
0.08 mm
0.0 mm
24.21 - 24.75 mm
22.21 - 22.75 mm
23.96 - 24.51 mm
21.96 - 22.51 mm
Intake
Exhaust
Intake
Exhaust
Page 189 of 1463
1B1-116 M162 ENGINE MECHANICAL
Measurement of Mating Surface
1. Measure the height (H) of the cylinder head (refer to Service
data standard
).
2. Check the mating surface of the cylinder head.
3. Mill the sharp edge of the combustion chamber.
4. Re-measure the height (H) of the cylinder head.
5. Seal the intake and exhaust valves.
6. Measure the dimension (T) between the camshaft bearing
and the valve system (refer to
Service data standard).
7. Mill the cylinder head valve seat (refer to
Service data
standard
).
Universal Tool
Surface Grinding Machine
Sceledum, Type RTY
Roaro
Schio/Italy
Page 190 of 1463

SECTION 1B2
M161 ENGINE MECHANICAL
CAUTION: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable
will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwise
noted.
Specifications . . . . . . . . . . . . . . . . . . . . . . . 1B2-2
Fastener Tightening Specifications . . . . . . . . 1B2-2
Special Tools . . . . . . . . . . . . . . . . . . . . . . . 1B2-4
Special Tools Table . . . . . . . . . . . . . . . . . . . . 1B2-4
Maintenance and Repair . . . . . . . . . . . . . . 1B2-9
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 1B2-9
Engine Assembly . . . . . . . . . . . . . . . . . . . . . 1B2-9
Crankcase Ventilation System . . . . . . . . . . 1B2-17
Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . 1B2-21
Power Steering Pump and A/C Bracket . . . 1B2-22
Hydraulic Engine Mounting Insulator . . . . . . 1B2-25
Poly V-Belt . . . . . . . . . . . . . . . . . . . . . . . . . 1B2-28
Tensioning Deivce . . . . . . . . . . . . . . . . . . . . 1B2-30
Tensioning Device Shock Absorber . . . . . . 1B2-31
Poly V-Belt Inspection . . . . . . . . . . . . . . . . . 1B2-32
Cylinder Head Cover . . . . . . . . . . . . . . . . . 1B2-35
Cylinder Head Front Cover . . . . . . . . . . . . . 1B2-37
Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . 1B2-39
Timing Gear Case Cover . . . . . . . . . . . . . . 1B2-44
Crankshaft Sealing Rear Cover . . . . . . . . . 1B2-47
Belt Pulley and Vibration Damper . . . . . . . . 1B2-49
Crankshaft Front Radial Seal . . . . . . . . . . . 1B2-52
Crankshaft Rear Radial Seal . . . . . . . . . . . 1B2-53
Crankshaft . . . . . . . . . . . . . . . . . . . . . . . . . 1B2-54
Flywheel/Driven Plate . . . . . . . . . . . . . . . . . 1B2-60
Camshaft Adjuster . . . . . . . . . . . . . . . . . . . 1B2-62
TABLE OF CONTENTS
Camshaft Sprocket Bolt . . . . . . . . . . . . . . . 1B2-65
Camshaft . . . . . . . . . . . . . . . . . . . . . . . . . . 1B2-66
Camshaft Timing Position . . . . . . . . . . . . . . 1B2-69
Valve Spring . . . . . . . . . . . . . . . . . . . . . . . . 1B2-72
Valve Stem Seal . . . . . . . . . . . . . . . . . . . . . 1B2-76
Chain Tensioner . . . . . . . . . . . . . . . . . . . . . 1B2-77
Timing Chain . . . . . . . . . . . . . . . . . . . . . . . . 1B2-80
Tensioning Rail . . . . . . . . . . . . . . . . . . . . . . 1B2-85
Cylinder Head Guide Rail . . . . . . . . . . . . . . 1B2-86
Crankcase Guide Rail . . . . . . . . . . . . . . . . . 1B2-87
Crankshaft Sprocket . . . . . . . . . . . . . . . . . . 1B2-88
Piston . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1B2-90
Connecting Rod . . . . . . . . . . . . . . . . . . . . . 1B2-93
Piston Ring . . . . . . . . . . . . . . . . . . . . . . . . . 1B2-95
Oil Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1B2-97
Engine Oil and Oil Filter Element . . . . . . . . 1B2-99
Oil Pump . . . . . . . . . . . . . . . . . . . . . . . . . 1B2-101
Oil Pressure Relief Valve . . . . . . . . . . . . . 1B2-103
Oil Non-Return Valve . . . . . . . . . . . . . . . . 1B2-104
Oil Dipstick Guide Tube . . . . . . . . . . . . . . 1B2-105
Unit Repair . . . . . . . . . . . . . . . . . . . . . . . 1B2-106
Core Plugs in Crankcase . . . . . . . . . . . . . 1B2-106
Cylinder Bore . . . . . . . . . . . . . . . . . . . . . . 1B2-108
Crankcase Mating Surface . . . . . . . . . . . . 1B2-110
Cylinder Head Mating Surface . . . . . . . . . 1B2-112
Page 191 of 1463

1B2-2 M161 ENGINE MECHANICAL
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
N
· ·· ·
·m
35 - 40
10 - 15
5 - 10
21 - 25
30
56 - 66
50 - 60
22.5 - 27.5
41.5 - 49.5
22.5 - 27.5
22.5 - 27.5
9 - 11
9 - 11
9 - 11
9 - 11
22.5 - 27.5
10
+90°
55
+90°
+90°
22.5 - 27.5
22.5 - 27.5
9 - 10
9 - 10
200
+90°
40
+90°
45
+90°
35
9 - 11
20
+90°
20
+90°
20 / + 90°
20 / + 90°
22.5 - 27.5Application
Power Steering Hydraulic Lines
A/C High Pressure and Liquid Hose
Radiator Support Menber Bolt
Fuel Supply and Return Hose to Fuel Distributor
Exhaust Manifold and Pipe
Propeller Shaft to Transmission
Engine Mounting Nut
Alternator Carrier Bolt
Belt Pulley Bolt
Steering Pump Bolt
A/C Bracket Bolt
Intake Air Duct Bolt
Ignition Cable Cover Bolt
Cylinder Head Cover Bolt
Camshaft Adjuster Bolt
Cylinder Head Front Cover Bolt
Flange Bolt in Exhaust Camshaft Sprocket
Cylinder Head Bolt
Cooling Fan Bracket Bolt
Timing Gear Case Cover Bolt M8
M6
Crankshaft Rear Cover Bolt
Vibration Damper Center Bolt
Connecting Rod Bearing Cap Bolt
Flywheel Stretch Bolt
Amarture Bolt in Flywheel
Ring and Seal Cover Nut in Flywheel
Sprocket Bolt to Exhaust Camshaft
Camshaft Adjuster Flange Bolt
Intake Flange Shaft Bolt
Exhaust Camshaft Sprocket Bolt
Camshaft Bearing Cap Bolt
Page 192 of 1463
M161 ENGINE MECHANICAL 1B2-3
N
· ·· ·
·m
20 / + 90°
40
72 - 88
20 / + 90°
25 - 35
22.5 - 27.5
22.5 - 27.5
22.5 - 27.5
22.5 - 27.5
30
26 - 34
30
8 - 10
25
25
22.5 - 27.5
29 - 35
22.5 - 27.5
9 - 11
50
9 - 11
15Application
Exhaust Camshaft Sproket Bolt
Chain Tensioner Screw Plug
Chain Tensioner Assembly
Exhaust Camshaft Sprocket to Camshaft
Oil Pump Sprocket Bolt
Tensioning Device Bolt
Water Pump Pulley
Upper Intake Manifold Bolt
Lower Intake Mainfold Bolt
Flange Bolt to Exhaust Mainfold
Exhaust Mainfold Nut to Stud Bolt
Rivet Nut in Exhuast Mainfold Hole
Pre-Silencer Bolt
Oil Drain Plug
Oil Filter Cover
Oil Filter Bolt
Oil Pump Drive Sprocket Bolt
Oil Pump Mounting Bolt
Oil Strainer Bracket Bolt
Oil Pressure Relief Valve Screw Plug
Oil Dipstick Guide tube Bolt
Oil Gallery Screw Plug
FASTENER TIGHTENING SPECIFICATIONS (Cont’d)