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1G-2 ENGINE INTAKE & EXHAUST
EXHAUST SYSTEM
Notice: When you are inspecting or replacing exhaust
system components, make sure there is adequate
clearance from all points on the underbody to avoid
possible overheating of the floor panel and possible
damage to the passenger compartment insulation and
trim materials.
Check the complete exhaust system and the nearby
body areas and trunk lid for broken, damaged, missing
or mispositioned parts, open seams, holes, loose
connections, or other deterioration which could permit
exhaust fumes to seep into the trunk may be an
indication of a problem in one of these areas. Any
defects should be corrected immediately.
MUFFLER
Aside from the exhaust manifold connection, the
exhaust system uses a flange and seal joint design
rather than a slip joint coupling design with clamp and
U-bolts. If hole, open seams, or any deterioration is
discovered upon inspection of the front muffler and
pipe assembly, the complete assembly should be
replace, the complete assembly should be replaced.
The same procedure is applicable to the rear muffler
assembly.
Heat shields for the front and rear muffler assembly
and catalytic converter protect the vehicle and the
environment from the high temperatures that the
exhaust system develops.
CATALYTIC CONVERTER
(GASOLINE ENGINE)
Notice: When jacking or lifting the vehicle from the
body side rails, be certain that the lift pads do not
contact the catalytic converter, as this could damage
the catalytic converter.
Notice: Use of anything other than unleaded fuel will
damage the catalyst in the catalytic converter.
The catalytic converter are emission-control devices
added to the exhaust system to reduce pollutants from
the exhaust pipes.
The oxidation catalyst is coated with a catalytic material
containing platinum and palladium, which reduces
levels of hydrocarbon (HC) and carbon monoxide (CO)
from the exhaust gas. The three-way catalyst has
coatings which contain platinum and rhodium, which
additionally lower the levels of oxides of nitrogen
(NOx).
DESCRIPTION AND OPERATION
DOC (DIESEL OXIDATION
CATALYST)
System and Principle
Oxidation catalytic technology for diesel engine is
basically the same with it of gasoline engine used
before development of 3 primary catalyst (2 primary
catalyst), and its effect and performance were already
proved.
DOC (Diesel Oxidation Catalyst) reduces HO and CO
contained exhaust gas over 80%, and removes SOF
(Soluble Organic Fraction) over 50~80%, but because
its portion in total PM is low, it reduces approx, 20~40%
of TPM (Total Particulate Material).
Because of low reducing rate for PM of DOC, in order
to guarantee safety rate of PM regulation, this
technology is being used mainly.
And it should keep over 80% of PM reducing rate, and
at present it plays a role as a transition stage.
And also it reduces diesel odor and black smoke,
platinum or palladium are being used as a catalyst.
On the other hand, it is a problem that it makes the
reaction of oxidation, which SO
H
SO
by reacting to oxygen in exhaust gas, if
2
4
temperature of exhaust gas becomes over 300°C, and
this produced gas is very harmful to human body. To
prevent is, previously it is requested that the sulfur
content rate of fuel should be below 0.05%, and in the
future it is being expected to keep it below 0.01%.
produce SO
and
2
3
SSANGYONG Y200
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