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.
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.
