SsangYong Rexton. Service manual — part 36
DI02-35
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AFFECTED VIN
ENGINE HOUSING
DI ENG SM - 2004.4
Selection of Upper Main Bearing Shell
Selection of Lower Main Bearing Shell
Y220_02096
Y220_02097
Punch Mark
•
• •
• • •
Color
Blue
Yellow
Red
Mark
B
Y
R
W
V
Color
Blue
Yellow
Red
White
Violet
DI02-36
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AFFECTED VIN
ENGINE HOUSING
DI ENG SM - 2004.4
Y220_02099
Y220_02098
Crankshaft Position Sensor
The crankshaft position sensor is located near to flywheel on the rear of cylinder block. It generates AC voltage between
increment type driven plate that fixed on flywheel inside. The sensor consists of soft iron core that winded copper wire
on permanent magnet and generates sign wave AC voltage when magnetism on the sensor wheel passes the sensor.
When the crankshaft rotates, ‘+’ signal will be generated from near the front edge and ‘-’ signal will be generated from
near the rear edge among teeth on the driven plate near to crankshaft position. The AC voltage increases as the engine
speed increases, however, no signal occurs from the 2-missing-tooth on the increment type driven plate. By using these
teeth, ECU recognizes TDC of No. 1 and 5 cylinders.
ECU converts the alternative signals into digital signals to recognize crankshaft position, piston position and engine
speed. The piston position that coupled with crankshaft is main factor in calculating injection timing. By analyzing the
reference position and camshaft position sensor, can recognize No. 1 cylinder and calculate the crankshaft speed.
A. Distance between ‘+’ max. voltage and ‘-’ max.
voltage
a. Front edge
b. Rear edge
c . 2-missing-tooth
<Location of crankshaft position sensor>
<Drive plate>
<Structure of crankshaft position sensor>
Permanent
magnet
Ring gear
Iron
coil
Standard
position
DI02-37
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ENGINE HOUSING
DI ENG SM - 2004.4
Y220_02100
<Circuit diagram of crankshaft position sensor>
Output voltage
( 1 ~ 150 V)
Sensor unit coil resistance (
Ω
)
Sensor air gap
Operating temperature
Tightening torque
Min. voltage: 1.0 V (40 rpm, air gap: 1.3 mm)
Max voltage: 150 V (7000 rpm, air gap: 0.3 mm)
1,090 ± 15 %
0.3 ~ 1.5 mm
- 40 ~ 150°C
6 ~ 8 Nm
Drive plate
Crankshaft position
sensor
Ground
Signal
DI02-38
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EFFECTIVE DATE
AFFECTED VIN
ENGINE HOUSING
DI ENG SM - 2004.4
Y220_02101
TORSIONAL VIBRATION DAMPER
System Description
• Components: Hub, inertia mass, cover, bearing, bushing, silicon oil
• Functions: The crankshaft pulley optimizes the drive system by reducing the amount of torsional vibration in crankshaft.
Conventional rubber damper is limited in changing materials (rubbers) to absorb vibration, but this crankshaft
pulley (viscous damper), using silicon oil, takes advantage of less changing viscosity according to the
temperature.
Laser welding
Hub
Pin
Silicone oil
Inertia ring
Bushing
Cover
Bearing
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