SsangYong Rexton. Manual - part 31

DI02-15

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

ENGINE HOUSING

DI ENG SM - 2004.4

Special Tools and Equipment

Y220_02050

Y220_02049

Y220_02048

Y220_02047

Y220_02046

Y220_02045

Y220_02044

Y220_02043

Name and Part Number

Application

Compression pressure measur-
ing adapter and gauge

Pressure plate (cylinder head
pressure leakage test)

Pressure plate (intake camshaft
pressure leakage test

Pressure plate (exhaust camshaft
pressure leakage test)

DI02-16

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

ENGINE HOUSING

DI ENG SM - 2004.4

Y220_02058

Y220_02057

Y220_02056

Y220_02055

Y220_02053

Y220_02052

Y220_02051

Name and Part Number

Application

Cylinder head hanger

Supporting bar and lever

Guide pin extractor

Intake manifold guide pin

Y220_02054

DI02-17

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

ENGINE HOUSING

DI ENG SM - 2004.4

Y220_02059

CAMSHAFT ASSEMBLY

Preceding Work: Removal of cylinder head cover

Finger follower and HLA

Intake camshaft and

exhaust camshaft

Camshaft position sensor

Chain tensioner

Camshaft sprockets

Cylinder head

DI02-18

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

ENGINE HOUSING

DI ENG SM - 2004.4

<Circuit diagram of camshaft position sensor>

Y220_02061

Y220_02060

Camshaft Position Sensor

The camshaft position sensor uses hall-effect to set the camshaft position and metallic-magnetic-material sensor end is
attached on the camshaft and then rotates with it. If sensor protrusion passes camshaft position sensor’s semi-conduc-
tor wafer, magnetic field changes direction of electron on the semi-conductor wafer to the current flow direction that
passes through wafer from the right angle. When operation power is supplied from camshaft position sensor, camshaft
hall sensor generates signal voltage. The signal voltage will be 0V if protrusion and camshaft position sensor are near
and 5 V if apart.

ECU can recognize that the No. 1 cylinder is under compression stroke by using this voltage signal (hall voltage).

The rotating speed of camshaft is half of the crankshaft and controls engine’s intake and exhaust valves. By installing
sensor on the camshaft, can recognize specific cylinder’s status, compression stroke or exhaust stroke, by using
camshaft position when the piston is moving toward TDC (OT). Especially when started first, it is difficult to calculate the
stroke of a specific cylinder with only crankshaft position sensor.

Accordingly, camshaft position sensor is necessary to identify the cylinders correctly during initial starting. However,
when engine is started, ECU learns every cylinder of the engine with crankshaft position sensor signals so can run the
engine even though the camshaft position sensor is defective during engine running.

<Location of camshaft position sensor>

<Operation principle of hall sensor>

Gap

Hall voltage

Pulse generation

Sensor air gap

Tightening torque

Operating temperature

Cam angle ± 6°

0.2 ~ 1.8 mm

10 ~ 14 Nm

- 40 ~ 130°C

Camshaft sensor

Ground