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Tài liệu xe ô tô hyundai excel toàn tập hyundai excel
EXHAUSTSYSTEMReturn To Main Table of ContentsGENERAL 2AIR CLEANER 3MUFFLER .4 GENERALGENERALSPECIFICATIONSAir cleanerTemperature of thermo sensor Intake manifold vacuumShutter (heated air side)Below 30°C (86°F)Over 190 mm HgUnder 70 mm HgFully openFully closedAbove 45°C (113°F)Under 550 mm HgFully closedRated air flowFor engine airFor secondary airMufflerType3.7 m3/min0.1 m3/minExpansion resonance typeTIGHTENING TORQUENmkg.cmIb.ftAir cleaner wing nutAir cleaner flange nutFront muffler assy-to-manifold nutsFront muffler assy clamp-to-pipe mounting bracket boltsFront muffler assy-to-rear catalytic converter boltRear catalytic converter-to-main muffler assyHanger boltsBand3302.216-19 160-19012-1429-39300-40022-2929-39300-40022-2939-59400-600 29-4329-39 300-40022-2910-15 100-1507-115-1050-100 3.6-7.3TROUBLESHOOTINGSymptomExhaust gas leakageLoose jointsBroken pipe or mufflerAbnormal noiseDetached baffle plate in mufflerBroken hangersPipe of muffler interfering with bodyBroken pipe or mufflerLoose protectorProbable causeRemedyRetightenRepair or replaceReplaceReplaceCorrectRepair or replaceCorrect28-2 AIR CLEANERAIR CLEANERCOMPONENTSINSPECTION1.Check body and cover for deformation, corrosion or damage andcorrect 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 frominside of element.5. Check to see that heated air control valve operates properly.Temperature ofIntake manifoldShutterthermo sensorvacuumpositionbelow 30°COver 190 mm HgFully open(86°F)Under 70 mm HgFully closedabove 45°C(113°F)Under 550 mm HgFully closed28-3 MUFFLERMUFFLERCOMPONENTSREMOVALMain Muffler Assy1. Disconnect the muffler from rear catalytic converter2. Remove the muffler from hangers.28-4 MUFFLERRear Catalytic Converter1. Disconnect the muffler from rear catalytic converter.2. Remove the O-ring from hanger bracket, holding up the frontmuffler assy.3. Remove the rear catalytic converter from front muffler assy.Front Muffler Assy1. Remove the engine under cover.2. Remove the O-ring from hanger bracket.3.Remove the front muffler assy-to-rear catalytic converter boltsand hanger bracket.4. Loosen the exhaust pipe clamp bolts and remove the exhaustpipe clamp-to-exhaust pipe mounting bracket bolts.5. Remove the front muffler assy-to-exhaust manifold nuts.NOTEWhen loosening the nuts, apply a small amount of oil to thethreaded portion of bolts for easy removal.6. Remove the front muffler assy from hanger.28-5 MUFFLERINSPECTION1.Gas leaks at each connection. If gas leaks are evident, locate thecause. 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.INSTALLATIONWhen installing the exhaust system, temporarily tighten alljoints, and then tighten them up to specifications from engineside to rear side, ensuring that the joints and hangers are notstressed.28-6 . boltsBand3302.21 6-1 9 16 0-1 901 2-1 42 9-3 930 0-4 002 2-2 92 9-3 930 0-4 002 2-2 93 9-5 940 0-6 00 2 9-4 32 9-3 9 30 0-4 002 2-2 91 0-1 5 10 0-1 50 7-1 1 5-1 05 0-1 00 3. 6-7 .3TROUBLESHOOTINGSymptomExhaust. assy-to-manifold nutsFront muffler assy clamp-to-pipe mounting bracket boltsFront muffler assy-to-rear catalytic converter boltRear catalytic converter-to-main