Xe ô tô hyundai excel toàn tập hyundai excel - P12
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EXHAUST
SYSTEM
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GENERAL
.......................................... 2
AIR CLEANER ............................................
3
MUFFLER
.......................................
4
GENERAL
GENERAL
SPECIFICATIONS
Air cleaner
Temperature of thermo sensor Intake manifold vacuum
Shutter (heated air side)
Below 30°C (86°F)
Over 190 mm Hg
Under 70 mm Hg
Fully open
Fully closed
Above 45°C (113°F)
Under 550 mm Hg
Fully closed
Rated air flow
For engine air
For secondary air
Muffler
Type
3.7 m
3
/min
0.1 m
3
/min
Expansion resonance type
TIGHTENING TORQUE
Nm
kg.cm
Ib.ft
Air cleaner wing nut
Air cleaner flange nut
Front muffler assy-to-manifold nuts
Front muffler assy clamp-to-pipe mounting bracket bolts
Front muffler assy-to-rear catalytic converter bolt
Rear catalytic converter-to-main muffler assy
Hanger bolts
Band
3
30
2.2
16-19 160-190
12-14
29-39
300-400
22-29
29-39
300-400
22-29
39-59
400-600 29-43
29-39 300-400
22-29
10-15 100-150
7-11
5-10
50-100 3.6-7.3
TROUBLESHOOTING
Symptom
Exhaust gas leakage
Loose joints
Broken pipe or muffler
Abnormal noise
Detached baffle plate in muffler
Broken hangers
Pipe of muffler interfering with body
Broken pipe or muffler
Loose protector
Probable cause
Remedy
Retighten
Repair or replace
Replace
Replace
Correct
Repair or replace
Correct
28-2
AIR CLEANER
AIR CLEANER
COMPONENTS
INSPECTION
1.
Check body and cover for deformation, corrosion or damage and
correct or replace if necessary.
2. Check for dust in body.
3. Check element for clogging, contamination or damage.
4. If element is slightly clogged, remove dust by blowing air from
inside of element.
5. Check to see that heated air control valve operates properly.
Temperature of
Intake manifold
Shutter
thermo sensor
vacuum
position
below 30°C
Over 190 mm Hg
Fully open
(86°F)
Under 70 mm Hg
Fully closed
above 45°C
(113°F)
Under 550 mm Hg
Fully closed
28-3
MUFFLER
MUFFLER
COMPONENTS
REMOVAL
Main Muffler Assy
1. Disconnect the muffler from rear catalytic converter
2. Remove the muffler from hangers.
28-4
MUFFLER
Rear Catalytic Converter
1. Disconnect the muffler from rear catalytic converter.
2. Remove the O-ring from hanger bracket, holding up the front
muffler assy.
3. Remove the rear catalytic converter from front muffler assy.
Front Muffler Assy
1. Remove the engine under cover.
2. Remove the O-ring from hanger bracket.
3.
Remove the front muffler assy-to-rear catalytic converter bolts
and hanger bracket.
4. Loosen the exhaust pipe clamp bolts and remove the exhaust
pipe clamp-to-exhaust pipe mounting bracket bolts.
5. Remove the front muffler assy-to-exhaust manifold nuts.
NOTE
When loosening the nuts, apply a small amount of oil to the
threaded portion of bolts for easy removal.
6. Remove the front muffler assy from hanger.
28-5
