SSANGYONG Rexton Y200 Manual page 103

1B1-62 M162 ENGINE MECHANICAL
"Advanced" Position
12 Seal Cover
13 Camshaft Sprocket
14 Adjust Piston (Stops Towards The Front)
16 Flange Shaft
17 Compression Spring
18 Control Piston (Stops Towards The Rear)
19 Circlip
22 Intake Camshaft
23 Oil Outlet Drilling
A Working Chamber (Oil Pressure)
Y49 Electromagnetic Actuator (Not Functioning)
3. From 1000 - 2000 to 4000 rpm ('advanced')
The control piston (18) is pulled forward as far as
the stop in the flanged shaft (16) by the actuator
(Y49) against the force of the compression spring
(17).
The control piston (18) closes the oil feed to the
working chamber 'A' and at the same time allows
oil to flow to the working chamber 'B' through 2
drillings each in the flanged shaft (16) and adjusting
piston (14). The engine oil pressure moves the
adjusting piston (14) as for as the stop on the
flanged shaft (16). As a result of the axial movement
of the flanged shaft (16) is turned into the 'advanced'
position. The turning action is achieved as a result
YAD1B0D0
of the effect of the helical teeth on the camshaft
sprocket (13), positioning piston (14) and flanged
shaft (16). The engine oil in working chamber 'A'
flows off, assisted by the pushing action of the
adjusting piston (14), over the flanged shaft (16)
and through 2 drillings (23) in the camshaft flange.
4. From 4000 rpm ('retarded')
The electromagnetic actuator (Y49) is not actuated
and allows the control piston to move. The
compression spring (17) pushes the control piston
(18) against the circlip (19). The oil feed to the
working chamber 'B' is closed off and oil is able to
flow to working chamber 'A' along 2 drillings in the
flanged shaft (16). As a result of the engine oil
pressure, the control piston (18) is moved as far as
the cover (12).
This axial movement of the adjusting piston (14)
rotates the camshaft (22) bolted to the flanged shaft
(16) in to the 'retarded' position.
The rotational movement is a result of the screw
effect of the helical teeth on the camshaft sprocket
(13), positioning piston (14) and flanged shaft (16).
The engine oil in the working chamber (B) flows off,
assisted by the pushing action of the adjusting
piston (14), through 2 drillings each in the adjusting
piston (14), flanged shaft (16) and control piston
(18) through the control piston (18) and 2 drillings
in the camshaft flange (23).
Leak oil flows off over the control and adjusting
piston surfaces through the control piston drilling
and 2 drillings in the camshaft flange (23).
SSANGYONG Y200