Xe ô tô hyundai excel toàn tập hyundai excel - P12

Tài liệu xe ô tô hyundai excel toàn tập hyundai excel

S Y S T E M

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GENERAL 2 AIR CLEANER 3 MUFFLER 4

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 N m 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

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

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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

MUFFLER

COMPONENTS

REMOVAL

Main Muffler Assy

1 Disconnect the muffler from rear catalytic converter

2 Remove the muffler from hangers.

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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.

M U F F L E R

INSPECTION

1 Gas leaks at each connection If gas leaks are evident, locate the cause Retighten if necessary.

2 Corroded or damaged muffler and pipes.

3 Damaged rear catalytic converter.

4 Damaged gasket (front muffler assy-to-rear catalytic converter).

5 Cracked, damaged or loose hangers and clamps.

INSTALLATION

When installing the exhaust system, temporarily tighten all joints, and then tighten them up to specifications from engine side to rear side, ensuring that the joints and hangers are not stressed.

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