Solution Manual For Automotive Engines Diagnosis, Repair, and Rebuilding 9th Edition Tim Gilles, Tim LeVan Chapter 1-19

Solution Manual For c c


AutomotivecEnginescDiagnosis,cRepair,candcRebuildingc9thcEditioncTimcGilles,cTimcLeVan
Chapterc1-19

Chapterc1:cEnginecOperation


TABLE OF CONTENTSC C




PurposecandcPerspectivecofcthecChapter .................................................................................................... 2
ChaptercObjectives ...................................................................................................................................... 2
CompletecListcofcChaptercActivitiescandcAssessments............................................................................... 2
KeycTerms .................................................................................................................................................... 3
What’scNewcincThiscChapter....................................................................................................................... 3
ChaptercOutline ........................................................................................................................................... 3
LessoncHints ................................................................................................................................................. 5
ReadingcAssignment .................................................................................................................................... 5
WrittencAssignments ................................................................................................................................... 5
Chapterc1cAnswerscTocStudycQuestions ...................................................................................................... 5
Chapterc1cAnswerscTocASE-StylecReviewcQuestions .................................................................................... 6




©c2024cCengage.cAllcRightscReserved.cMaycnotcbecscanned,ccopiedcorcduplicated,corcpostedctocacpublicl 1
yc accessiblecwebsite,cincwholecorcincpat.

, InstructorcManual:cChapterc1:cEnginecOperation




PURPOSE AND PERSPECTIVE OF THE CHAPTER
C C C C C




cThecpurposecofcthiscchaptercisctocintroducecstudentsctocthecbasiccconstructioncandcoperationcofcancinternalcco
mbustioncengine.cItcdescribescthecmanycengineccomponentscandchowctocidentifycthecvariouscpieces.cAlsocexp
lainedcarecthecdifferentcenginecclassificationscalongcwithcthecdifferentcsystemscandchowctheycworkctogetherct
ockeepcthecenginecoperatingceffectively.




CHAPTER OBJECTIVES C




Uponccompletioncofcthiscchapter,cthecstudentcshouldcbecablecto:

 Explaincthecprinciplescofcinternalccombustioncenginecoperation.
 Identifycinternalccombustioncenginecpartscbycname.
 Explaincvariouscenginecclassificationscandcsystems.


COMPLETE LIST OF CHAPTER ACTIVITIES AND ASSESSMENTS
C C C C C C




Forcadditionalcguidance,creferctocthecTeachingcOnlinecGuide.

Chapter Activity/Assessment Sourcec(i.e.,cPPT Duration
Objective slide,cWorkbook)
Explaincthecprinc Icebreaker PPTcslidec2 10–15cmins
iplescofcinternalcc
ombustioncengin
ecoperation.


Identifycinternal Activity PPTcslidec27 10–20cminutes
ccombustionceng

inecpartscbycnam
e.


Explaincvarious Self-Assessment PPTcslidec29 5–10cminutes
cenginecclassific

ationscand
systems.




[returnctoctop]




©c2024cCengage.cAllcRightscReserved.cMaycnotcbecscanned,ccopiedcorcduplicated,corcpostedctocacpublicl 2
yc accessiblecwebsite,cincwholecorcincpart.

, InstructorcManual:cChapterc1:cEnginecOperation




KEY TERMS C




BDC:cBottomcDeadcCenter,creferringctoctheclocationcofcthecpistoncatcthecbottomcofcthecstroke
bimetalcengine:c Enginesccomposedcofccastcironcblockcandcaluminumcheads
blowby:c Gassescthatcescapecpastcpistoncrings
companionccylinders:c termcgivenctocpairscofccylinderscfoundcincenginescwithcevencnumbercofccylinders
compressioncratio:c thecratiocatcwhichcthecaircfuelcgascmixturecisccompressedcdisp
lacement:crefersctocthecvolumecthatcthecpistoncdisplacescinctheccylindercfiringcor
der:cThecsequencecincwhichcthecsparkcplugscfirecinceachccylinder
lowercend:c Refersctoctheclocationcatcthecbottomcofcthecblockcwherectheccrankshaftcandcbearingscareclocate
d

TDC:cTopcDeadcCenter,creferringctoctheclocationcofcthecpistoncatcthectopcofcthecstroke
transversecengine:c termcgivenctocthecenginescincfrontcwheelcdrivecvehicles

[returnctoctop]




WHAT’S NEW IN THIS CHAPTER
C C C C




[Informationctocbecaddedclatercbycauthor]

The following elements are improvements in this chapter from the previous edition:
c c c c c c c c c c c




[returnctoctop]


CHAPTER OUTLINE C




 Incacsimplecone-cylindercengine,cthecreciprocatingc(up-and-
down)cmotioncofcthecpistonciscchangedctocusablecrotarycmotioncbycthecconnectingcrodcandccrankshaft
.cAcflywheelcgivescmomentumctoctheccrankshaftcbetweencpowercstrokes.cValvesccontrolcthecengine’
scintakecandcexhaust.c(PPTcSlidec4)

 Duringconecfour-
strokeccycle,cthecintake,ccompression,cpower,candcexhaustcstrokescareccompleted.cThiscactionctakesc
720° ,corctwoccrankshaftcrevolutions.c(PPTcSlidec5)


©c2024cCengage.cAllcRightscReserved.cMaycnotcbecscanned,ccopiedcorcduplicated,corcpostedctocacpublicl 3
yc accessiblecwebsite,cincwholecorcincpart.

, InstructorcManual:cChapterc1:cEnginecOperation



 Theccompressioncratiocischowcthecenginecmakescthecmostcefficientcusecofctheccombustionceventcince
achccylinder.c Thechigherctheccompressioncratiocthecmorecpotentialcoutputcaccylinderchas.c(PPTcSlid
ec6)

 Cylinderscarecarrangedcin-line,cincacV-
type,corcopposedctoceachcother.cThecmostcpopularcautomotivecengineschavecfour,csix,corce
ightccylinders.c(PPTcSlidec7)

 Theccamshaftccontrolscthecopeningcandcclosingcofcthecvalvescand,cthus,cthecwaycthatcthecenginecb
reathes.cDifferentccamcgrindscprovidecbetterclow-speedcorcbetterchigh-
speedcoperation.c(PPTcSlidesc8,c9)

 Theccamshaftciscdrivencbycacchain,cacbelt,corcgears.c(PPTcSlidec8)

 Camshaftscarecdrivencbycactimingcchaincorcactimingcbelt.c(PPTcSlidesc8,c9)


 Cylindercrows,ccalledcbanks,carecdeterminedcfromcthecflywheelcendcofcthecengine.cAccompletece
nginecassemblycincludingcthecheadscisccalledcaclongcblock;cwithoutcheadscitcisccalledcacshortcblo
ck.c(PPTcSlidec12,c13)

 Theccrankcasechousesctheccrankshaftcandcbearings.cItciscenclosedcbycthecoilcpan.cTheccrankshaftch
ascacflywheelconconecendcandcacvibrationcdampercorcpulleyconcthecothercend.cThecpartcthatcthecbea
ringcridescagainstcisccalledcthecmaincorcrodcbearingcjournal.cCrankpinsconcfourccylinderscarecoffse
tcfromceachcothercbyc180° ,cin-linecsixccylinderscbyc120° ,candcV8scbyc90° .c(PPTcSlidesc14)

 Enginecsizescarecdescribedcbyctheirccylindercdisplacement,cusuallycincliters.cEnginecbreathingcd
eterminescthecpowercthatcthecenginecdevelops.c(PPTcSlidec15)

 Theclocationcofctheccamshaftcdependsconcthecenginecdesigncandcthectypecofcvehiclecthecengineciscb
eingcputcin.c Cam-
IncBlockcengineschavectheccamshaftcinctheccylindercblock.c Overheadccamcengineschavectheccams
haftcinctheccylinderchead.c(PPTcSlidec17)

 Engineccylinderscarecfiredcinconecofcseveralcfiringcorders.c(PPTcSlidec21)

 Pairscofcpistonscthatcgocupcandcdownctogethercbutcfirec360° fromceachcothercareccalledcco
mpanions.c(PPTcSlidec19)

 Mostcengineschavecliquidccoolingcsystemscthatcuseccoolantctocpreventcrustcandccorrosioncandcp
rovidecadditionalcprotectioncagainstcfreezingcandcboiling.c(PPTcSlidesc23–25)

 Sparkcignitioncenginescutilizecacsparkcplugctocstartcthecignitioncevent.c (PPTcSlidec26)

 Compressioncenginescutilizecheatcandcpressurectocstartcthecignitionceventcinctheccylinderc(PPTcS
lidec27)



©c2024cCengage.cAllcRightscReserved.cMaycnotcbecscanned,ccopiedcorcduplicated,corcpostedctocacpublicl 4
yc accessiblecwebsite,cincwholecorcincpart.