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SECTION 1
ENGINE
SECTION 1A1(M162 ENGINE)
GENERAL ENGINE INFORMATION
Specifications . . . . . . . . . . . . . . . . . . . . . . . 1A1-1
Engine Specifications . . . . . . . . . . . . . . . . . . 1A1-1
Component Locator . . . . . . . . . . . . . . . . . . 1A1-3
Front View . . . . . . . . . . . . . . . . . . . . . . . . . . 1A1-3
Side View . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A1-4
Performance Curve . . . . . . . . . . . . . . . . . . 1A1-5
E32 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . 1A1-5
Special Tools . . . . . . . . . . . . . . . . . . . . . . . 1A1-6
Special Tools Table . . . . . . . . . . . . . . . . . . . . 1A1-6Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . .
1A1-7
Oil Leak Diagnosis . . . . . . . . . . . . . . . . . . . . 1A1-7
Engine Cranking at The Front of Crankshaft . . . . . . . . . . . . . . . . . . 1A1-8
Compression Pressure Test . . . . . . . . . . . . . 1A1-9
Cylinder Pressure Leakage Test . . . . . . . . . 1A1-11
General Information . . . . . . . . . . . . . . . . . 1A1-13
Cleanliness and Care . . . . . . . . . . . . . . . . . 1A1-13
On-Engine Service . . . . . . . . . . . . . . . . . . . 1A1-13
Application
Engine Model Displacement (CC) Cylinder (Bore x Stroke) (mm)Fuel Injection / Ignition SystemCompression RatioNumber of Cylinders
Camshaft Valve Arrangement
Camshaft Drive TypeMax. Output (ps/rpm)
Max. Torque (kg• m/rpm)Firing Order
Ignition Type
Ignition Timing
Valve Timing Intake Open/Close ExhaustOpen/Close
Valve Clearance Adjustment SPECIFICATIONS
ENGINE SPECIFICATIONS E32 EngineM162.990 3199
89.9 x 84.0
MSE 3.62S 10 : 1
6
DOHC
Chain-Driven
222 / 5500
31.6 / 3750
1-5-3-6-2-4
Distributorless Double Ignition BTDC 8° ± 2°
ATDC 11° / ABDC 34°
BBDC 31° / BTDC 14° Automatic Control
TABLE OF CONTENTS
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1A1-2 GENERAL ENGINE INFORMATION
Application
Idle Speed (rpm)
Fuel Injection Pressure (kg/cm²)Oil Capacity (liter)
Lubrication Type
Oil Filter TypeFuel ENGINE SPECIFICATIONS (Cont'd)
E32 Engine7 00 ± 5 0 3 - 48.2
Forced by Gear Pump
Full Flow with Paper Filter
Unleaded Gasoline
MSE 3.62S/3.53S (Motors teuer Elektronik : German)
MSE : Engine Control Electronic
3.62S : 6 Cylinder Version
3.53S : 4 Cylinder Version
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GENERAL ENGINE INFORMATION 1A1-3
COMPONENT LOCATOR
FRONT VIEW
1 HFM Sensor
2 Intake Air Duct
3 Resonance Flap
4 Cylinder Head Cover
5 Exhaust Camshaft
6 Intake Camshaft
7 Cylinder Head
8 Spark Plug Connector
9 Valve Tappet
1 0 Injector
11 Exhaust Valve 12 Intake Manifold
13 Connecting Rod
14 Exhaust Manifold
15 Crankshaft
16 Engine Mounting Bracket
17 Starter
18 Crankcase
19 Oil Pump Sprocket
20 Oil Strainer
21 Oil Pan
22 Drain Plug
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1A1-4 GENERAL ENGINE INFORMATION
23 Camshaft Adjuster
24 Cooling Fan and Viscous Clutch
25 Piston
26 Flywheel of Drive Plate27 Oil Pump Drive Chain
28 Oil Return Pipe
29 Timing Chain
30 Oil Pump
SIDE VIEW
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GENERAL ENGINE INFORMATION 1A1-7
OIL LEAK DIAGNOSIS Most fluid oil leaks are easily located and repaired by visually finding the leak and replacing or repairing thenecessary parts. On some occasions a fluid leak may
be difficult to locate or repair. The following proceduresmay help you in locating and repairing most leaks. Finding the Leak
1. Identify the fluid. Determine whether it is engine oil,automatic transmission fluid, power steering fluid, etc.
2. Identify where the fluid is leaking from. 2.1 After running the vehicle at normal operating temperature, park the vehicle over a large sheet
of paper.
2.2 Wait a few minutes.
2.3 You should be able to find the approximate location of the leak by the drippings on the
paper.
3. Visually check around the suspected component. Check around all the gasket mating surfaces forleaks. A mirror is useful for finding leaks in areas thatare hard to reach.
4. If the leak still cannot be found, it may be necessary to clean the suspected area with a degreaser, steamor spray solvent.
4.1 Clean the area well.
4.2 Dry the area.
4.3 Operate the vehicle for several miles at normal operating temperature and varying speeds.
4.4 After operating the vehicle, visually check the suspected component.
4.5 If you still cannot locate the leak, try using the powder or black light and dye method.
Powder Method
1. Clean the suspected area.
2. Apply an aerosol-type powder (such as foot powder) to the suspected area.
3. Operate the vehicle under normal operating conditoins.
4. Visually inspect the suspected component. You should be able to trace the leak path over the white powder surface to the source.
Black Light and Dye Method A dye and light kit is available for finding leaks, Refer to the manufacturer's directions when using the kit.
1. Pour the specified amount of dye into the engine oil fill tube. 2. Operate the vehicle normal operating conditions as
directed in the kit.
3. Direct the light toward the suspected area. The dyed fluid will appear as a yellow path leading to the source.
Repairing the Leak Once the origin of the leak has been pinpointed and traced back to its source, the cause of the leak must be
determined n order for it to be repaired properly. If agasket is replaced, but the sealing flange is bent, the new gasket will not repair the leak. The bent flange must be repaired also. Before attempting to repair a leak,check for the following conditions and correct them asthey may cause a leak. Gaskets
The fluid level/pressure is too high.
The crankcase ventilation system is malfunctioning.
The fasteners are tightened improperly or the threads are dirty or damaged.
The flanges or the sealing surface is warped.
There are scratches, burrs or other damage to thesealing surface.
The gasket is damaged or worn.
There is cracking or porosity of the component.
An improper seal was used (where applicable).
Seals
The fluid level/pressure is too high.
The crankcase ventilation system is malfunctioning.
The seal bore is damaged (scratched, burred or nicked).
The seal is damaged or worn.
Improper installation is evident.
There are cracks in the components.
The shaft surface is scratched, nicked or damaged.
A loose or worn bearing is causing excess seal wear.
DIAGNOSIS
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GENERAL ENGINE INFORMATION 1A1-11
CYLINDER PRESSURE LEAKAGE TEST
3 Engine Oil Filler Cap
4 Vibration Damper
Permissible Pressure Leakage 6 Cylinder Pressure Leakage T
ester with
Connecting Hose
Universal Tool
At Whole Engine
At Valve and Cylinder Head GasketAt Piston and Piston RingMax. 25 % Max. 10 %Max. 20 %
Cylinder Number By Mark On Vibration Damper At TDC
TDC Mark
Cylinder Numberb (240°)
3, 4a (120°)2, 5
OT (TDC)
1, 6
Cylinder Pressure Leakage Tester Bosch, EFAW 210A
Sun, CLT 228
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1A1-12 GENERAL ENGINE INFORMATION
Leakage Test1. Warm the engine up to normal operating temperature.
2. Disconnect the negative battery cable.
3. Remove the spark plugs.
4. Check the coolant level by opening the coolant surge tank cap and replenish if insufficient.
5. Open the engine oil filler cap.
6. Connect the tester to air pressure line and adjust the scale of tester.
7. Install the connecting hose to spark plug hole.
9. Connect the connecting hose to tester and measure the leakage volume after blowing up 5bar of compressed air. Notice Measure the leakage volume in the completely opening condition of throttle valve by pulling the acceleration cable.
10. Perform the pressure test according to the firing order.
Notice Firing Order : 1 - 5 - 3 - 6 - 2 - 4
11. Compare the leakage pressure with the specifications. 8. Position the piston of No.1 cylinder at TDC by rotating the
crankshaft.
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GENERAL ENGINE INFORMATION 1A1-13
GENERAL INFORMATION
CLEANLINESS AND CARE An automobile engine is a combination of many machined, honed, polished and lapped surfaces withtolerances that are measured in the ten-thousanths ofan inch. When any internal engine parts are serviced,care and cleanliness are important. A liberal coating of enigne oil should be applied to friction areas during
assembly, to protect and lubricate the surfaces on initialoperation. Proper cleaning and protection of machinedsurfaces and friction areas is part of the repairprocedure. This is considered standard shop practice even if not specifically stated. Whenever valve train components are removed for
service, they should be kept in order. They should beinstalled in the same locations, and with the same matingsurfaces, as when they were removed. Battery cables should be disconnected before any majorwork is performed on the engine. Failure to disconnectcables may result in damage to wire harness or other electrical parts. ON-ENGINE SERVICE 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 personalinjury and damage to the vehicle. The ignition mustalso be in LOCK unless otherwise noted. Notice:
Any time the air cleaner is removed, the intake
opening should be covered. This will protect against accidental entrance of foreign material, which could follow the intake passage into the cylinder and cause extensive damage when the engine is started.