奥迪全系自学手册（SSP）：SSP260_GB.pdf

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1、Service.Self-StudyProgramme260The1.2ltr.3-cylinderpetrolenginesDesignandFunctionThetwo1.2ltr.enginesmarktheintroductionofThefollowingobjectiveswereparamountinthe3-cylinderpetrolenginesatVolkswagen.developmentprogramme:Thispairofentry-levelenginesroundsofftherangeofenginesofth

2、e2002Polo.–goodfueleconomy–compliancewithemissionstandardEU4Theoneenginefeaturing2valvespercylinder–lowlevelofservicinghasapoweroutputof40kWwhilethesecond–lowweightenginefeaturing4valvespercylinderproduces–samesmoothrunningasa4-cylinderengine47kW.260_011Weshallpresentthedesig

3、nandfunctionofthetwo1.2ltr.petrolenginestoyouonthepageswhichfollow.Becausethebaseengineofbothpowerplantsisidentical,withtheexceptionofthecylinderhead,thedescriptionforthemostpartpresentsthe1.2ltr./47kWengine.NEWImportantNoteTheSelf-StudyProgrammedescribesthedesignandPleasealw

4、aysrefertotherelevantservicefunctionofnewdevelopments!literatureforup-to-dateinspection,Thecontentsarenotupdated.adjustmentandrepairinstructions.2AtaglanceIntroduction..........................................4Technicaldata..............................................5Engine

5、mechanics.....................................6Driveofcamshaftsandofoilpump............................6Cylinderheadandcamshafthousing..........................8Valvegear.................................................9Cylinderblock...........................................

6、...10Crankassemblywithbalancershaft...........................11Oilfilterandoilpump.......................................12Coolingsystem.............................................13Fuelsystemwithoutreturnflow................................14Fuelfilterwithfuelpressureregul

7、ator..........................15Enginecoverwithairfilter...................................16Crankcaseventilation.......................................17Enginemanagementsystem............................20Systemoverview...........................................20Enginecontr

8、olunit.........................................22Single-sparkignitio