Plymouth Plaza 1955 User manual

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PLYMOUTHSERVICEMANUAL
1956
PLY
1955
OU T H
P-26,P-27
56P128
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PLYMOUTHSERVICEMANUAL
Senvic¢... ô«men,
Customerconfidencepaysdividendsover the years.Treating a customer's
carasyouwouldyour own makes an ownerfeelthat youare rendering a
service, not simplyselling a repair job. There's a greatdifferencebetween
anhonestdesire tobeof friendlyservice toa customerand a desire to
simplysell a jobof service! A customerquicklyrecognizes the service man
whotakes a personalinterest inhis welfare, and gets a feeling of confi-
dence and satisfactionthatmakes"habit"customers outof "now¯and¯
then" customers.
Experience has shownthat oneofthe bestways to createcustomer
confidence isto offersafetyinspections and roadtests asa part of your
service to themotorists in yourcommunity.Likeothersuccessfulservicemen,
youwillfindthatmotoristsappreciateratherthanresenthavingyourrecom-
mendationsaboutwhatshould be done to maintainsafevehicleoperation.
Thereareoverfifty-fourmillionautomotivevehiclesinop-
eration inthe UnitedStates.Everyyear asnew vehicles areput into
use, new inexperienceddriverstake the wheel,increasing the problem of
handlingtraffic onour streets and highways.Theremust be greatereffort
on the part of everyoneconcerned to helpkeepthesecars in safeoperating
condition. Much ofthe responsibilityfalls onthe shoulders of service men.
Servicemenhavetheresponsibilityofkeepingmotorists
informedabouttheoverallconditionoftheirvehicles—par-
ticularlythoseunitsuponwhichthedriverdependsforsafe
operation.
Servicemenhavetheresponsibilityofeducatingdrivers
aboutthehazardsofdrivinganunsafevehicle.
Servicemenhavetheresponsibilityofadvisingdriversabout
theneedforperiodicalsafety-inspections.
Servicemenhavetheresponsibilityofkeepingdriversin-
formedabouttheneedforperiodicalsafetymaintenance.
Servicemenwhoaccepttheseresponsibilitiesandtreateach
customer'scarasthoughitwerehisown,willreapthebenefits
ofcustomerconfidenceandsatisfaction.
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PLYMOUTHSERVICEMANUAL
Model
P-26Plaza,Savoy,Belvedere
P-27Plaza,Savoy,Belvedere
P-28Plaza,Savoy,Belvedere
P-29Plaza,Savoy,Belvedere
StartingVehicleNumbers
Detroit
13,835,001
15,663,001
14,120,001
15,873,001
Evansville
20,745,001
22,182,001
20,820,001
22,247,001
LosAngeles
25,180,001
26,524,001
25,202,001
26,552,001
VEHICLENUMBERLOCATION
The vehicle number (serial number) is located on a plate which is attached
to the left front door hinge pillar post
ENGINENUMBERLOCATION
The engine number is stamped on a boss on the left side at the front of the
cylinder block on the PowerFlow 6 engines. On 157, 167, and 180 horsepower
Hy-Fire V-8 engines, the number is located on top of the engine at the front,
next to the oil filler pipe. On 187 and 200 horsepower Hy-Fire V-8 engines, the
number is located on the left front face of the cylinder block.
BODYNUMBERLOCATION
The body number is stamped on a plate which is attached to the left side of
the engine side of the dash.
Vote ¢utd Sþec¿ftcœUo*¢>
Model
Number oí Cylinders
Bore & Stroke
PistonDisplacement
CompressionRatio
AAaximum
BrakeHorsepower
TaxableHorsepower
MaximumTorque
Wheelbase
Tread—Front
Tread—Rear
OverallLength
OveraUWidth
TurningDiameter
P¯26P-28
6
3½ x 4¾in.
230 cu.in.
7.4 to1
117 at
3600 RPM
25.4
194at1600
7.6 to1
131 at
3600RPM
25.4
2OOatl6OO
P-27
V-8
3%x3½in.
241cu.in.
7.6to1
157at
4400 RPM
37.9
217at 2400
3%x3½in.
260 cu.in.
7.6to1
167 at
4400 RPM
40.6
231at 2400
P-29
V-8
3¾x3¼in.
270 cu.in.
8.0to1
180at
4400 RPM
42.2
260at 2400
3¾x3½in.
277 cu.in.
8.0 to1
187 at
4400RPM
45
265at 2400
115 in.
58.4 in.
58.5 in.
203.8 in. 204.8 in.
203.8 in.
204.8 in.
74.6 in.
40 ft.1 in.40.6ft.
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PLYMOUTHSERVICEMANUAL
ThisPlymouthServiceManualhasbeenpreparedasa referencebook
ofcompleteserviceinformationforthePlymouthmodelsillustratedon
Page2.
Forconvenience,thecontentsofthemanualhavebeenarrangedbysec-
tions. Eachsectioncontainschartsofdataandspecifications,adjustments
andrepairinformation,anddiagnosisprocedures.A listofthesubjectscov-
eredineachsectionwillbefoundatthebeginningofthesection.A complete
alphabeticalindexappearsinthebackofthemanual.
TohelpdiagnosetheserviceneedsofthePlymouthcar,thismanualcon-
tainsover200diagnosisprocedures.Inmostinstancesitisadvisableto
makea roadtesttoverifytheconditiondescribedbythecustomersothat
thecorrectionsgiveninthediagnosisprocedurescanbeapplied.
Throughoutthemanual,servicedataandspecificationsaregiveninchart
form. Theclearancesandspecificationsshownarebasedonthetypeof
equipmentnormallyavailableforserviceworkanddonotinallcases
representthemanufacturingspecifications.
Thismanualcontainsserviceinformationforunitsoriginallyinstalledon
Plymouthcarsas"specialequipment."Noattempthasbeenmadetodesig-
natesuchunitsas"specialequipment"inthismanual.
CHRYSLERCORPORATION
PlymouthDivision
ServiceDepartment
Detroit,Michigan
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PLYMOUTHSERVICEMANUAL
NUT
SUSHtNG AND SPACER
WASHER
BOLT
BAR
SEAL
LOCK
SEAL
SCREW
BUSHING
BUSHING
5SPÌO58
Figure1 — FrontSuspensionParts
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SECTIONI
FRONTSUSPENSIONSYSTEM
Page
DataandSpecifications8
1. FrontWheelAlignment7
2. FactorsofFrontWheelAlignment7
3.FrontWheelAlignmentCorrections10
4.TieRodEnds12
5.SteeringKnuckleandSupport12
6.UpperControlArm14
7.UpperControlArmPin,BushingandDustSeal14
8.LowerControlArmandFrontSpring14
9. FrontShockAbsorber15
10. DiagnosisProcedures16
1. FRONTWHEELALIGNMENT
Theneedforcheckingthealignmentofthefront
wheelsisusuallyindicatedbythewaythecar
steers,suchasa tendencyforthecartoleadto
oneside,ortowander.Certaintypesoftirewear,
suchastoe-inortoe-outwear,orcamberwear,
indicatetheneedforcheckingsomeofthefactors
ofwheelalignment.
Ifitisconsiderednecessarytocheckthewheel
alignmentofa newcar,itshouldberemembered
thatthefrontwheel suspensionpartsareclosely
fittedandtheirmovementis stiff. Asa result,a
newcarwillnotalwayssettletothepositionwhere
correctreadingscanbeobtained.Whenservicing
anewcar,itisbesttocheckonlythetoe-inofthe
frontwheels.Afterthecarhasbeendrivenabout
3,000miles,thestiffnessofnewpartswillbere-
lieved,andifwheelalignmentcorrectionsare
necessary,theycanbemadeatthenormalriding
level.
IMPORTANT
Frontwheel alignment equipment should be
checked frequently with the proper checking
equipment. Equipmentthat has been damaged
by dropping or rough handling should be care-
fully checked and adjusted before it is used.
The floor must be level when using portable
equipment.
2. FACTORSOFFRONTWHEEL
ALIGNMENT
Thefactorsoffrontwheelalignmentaregener-
allyconsideredtobecamberandkingpininclina-
tion, caster,toe-inofthefrontwheelsinthe
straight-aheadposition,andtoe-outofthefront
wheelsonturns.
Inadditiontothesefactors,thereareothercon-
ditionsthataffectsteeringcontrol.Theseare:im-
propertirepressure;wheelwobble;unbalanced
wheel andtireassemblies;saggedorbrokenfront
orrearsprings;damagedsteeringgearparts;
draggingbrakesorbentframe.
Frontwheelalignmentsettingsmustbeheldto
specificationswithinreasonablelimitsinorder
thatthevehiclemayexhibititsbeststeeringchar-
acteristicsandinordertoholdtherateandun-
evennessoftiretreadweartoa minimum.
Wheelalignmentmeasurementsshouldbetaken
withrecommendedtirepressureswithnopassen-
gerload,andwithcarstandinginitsnormallevel
positionwithnojacksunderit.Camber,casterand
toemeasurementsmustbemadewiththefront
wheelsonfloatingturn-tables.
CAMBERANDKINGPININCLINATION
CAMBER istheamountindegreesthatthefront
wheelsinclinefromtheverticalwhenviewedfrom
thefrontofthecar.Seefigure4.Wheelswithposi-
tivecamberarefartherapartatthetopthanatthe
bottom.Wheelswithnegativecamberarefarther
apartatthebottomthanatthetop.
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8PLYMOUTHSERVICEMANUAL
FRONTSUSPENSIONSYSTEM
DATA AND SPECIFICATIONS
Models
Type
Camber
Caster
Toe-In
Toe-OutonTurns
KingPinAngle
KingPinBushings—Ream
after installation
SteeringKnuckle
ThrustBearing
TieRods
ShortRod
LongRod
WheelBearingType
Tread
WheelBase
SwayEliminator
P-26-P-28P-27-P-29
CoilSpring—IndependentSuspension
—
Y/i
degreeonLeft — 0 degreeonRight
-2to0 degrees
½inch
Withinsidewheel at20degrees,outsidewheel shouldbe
1712to 19degrees
5to6½degrees
Upper.7960to.7975in.
Lower.7960to.7975in.Upper—NeedleBearing
Lower—.7960to.7975in.
.005to.010inch
NominalLength12%in.
NominalLength33%in.
20% in.
20% in.
TaperedRoller
Front58.44in.
Rear58.50in.
115in.
Mountedonframeandconnectedtolowercontrolarmthrough
rubbercushions
TORQUESPECIFICATIONS
Lowercontrolarmbarbushing
Lowercontrolarmpin
Uppercontrolarmpivotbarbushing
Uppercontrolarmpin
Tierodclampbolts
Uppercontrolarmpivotbarbolts
Lowercontrolarmpivotbarbolts
165ft.lbs.(min.)
100to110ft.lbs.
120to140ft.lbs.
100to110ft.lbs.
10to15ft.lbs.
80ft.lbs.
60ft.lbs.
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FRONTSUSPENSIONSYSTEM
7`/4 IN.
3'/«IN.
T'/ulN.
Vi« •N.
Figure2 — UpperControlArmDimensionsFigure3 — LowerControlArmDimensions
Tocounteractthenormalcrownoftheroadthe
camberofthewheel normallyrunningonthe
higherpartofthecrownshouldbe½°greater
thanthatoftheoppositewheel.
KING PIN INCLINATION istheamountinde-
greesthatthetopofthekingpininclinesaway
fromthevertical—towardthecenterofthecar.
Kingpininclinationisbuiltintothesteering
knuckleandbearsa positiverelationshiptocam-
ber.Ifcambercanbeadjustedwithinlimits,itis
usuallyconsideredunnecessarytocheckking
pininclination.
CASTER
Casteristheamountindegreesthatthetopof
thekingpinisinclinedtowardthefrontorrearof
thecar.SeeFigure5.
TIRECENTERLINE™
CAMBER ANGLE —
VERTICALLINE
K!N6PINANGLE
KINGP\H CENTERLINE-
Withpositivecaster,thetopofthekingpintilts
towardtherearofthecar,whilenegativecaster
meansthatthetopofthekingpintiltstowardthe
front.
Toe-inisthedifferenceinthedistance(athub
height)acrossthefrontandacrossthebackofthe
frontwheelswhilethewheelsareinthestraight-
aheaddrivingposition.SeeFigure10.Whenthe
distancebetweenthefrontwheelsatthefrontand
reararethesame,thefrontwheelshavezero(0)
toe-in.Ifthedistanceatthefrontislessthanthe
distanceoftherear,thewheelshave"toe-in."
—NEGATIVECASTER
FRONT
4·POSITIVECASTER
Figure4 — CamberAngleandKingPinInclinationFigure5 — CasterAngle
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10PLYMOUTHSERVICEMANUAL
TOE
.OUT
IFINDTHIS |
• DIFFERENCE ·
Figure6 — SteeringGeometryonTurns
COMPAR
Figure7 — MeasuringFrontSpringHeight
TOE-OUTONTURNS
Whenfrontwheelsareturnedtotherightorleft,
theyusuallytoe-out.SeeFigure6.Whenturning,
bothfrontwheelsmusttravelincircleswhichhave
acommoncenter.Thecircletraveledbytheinside
frontwheelhasa smallerradiusthanthatofthe
circletraveledbytheoutsidefrontwheel.Because
ofthis,theinsidefrontwheelmustturnfurther,
causingthefrontwheelstotoe-out.
3.FRONTWHEELALIGNMENT
CORRECTIONS
Beforeattemptingtocorrectthealignmentofthe
frontwheels,thetiresshouldbeproperlyinflated
andinspectedforwear.Aninspectionofthefront
suspensionsystemshouldbemadeforevidence
ofwear.Thecarshouldbeemptyofallluggageor
loadexceptthesparetire.(Wherea caroperates
undera loadedconditionatalltimesitisbestto
setwheelalignmentwiththisloadinthecar.)Set-
tlespringsandshockabsorbersintotheirnormal
positionsbybouncingfrontendof carup anddown
severaltimes.Thecarmustbeona levelsurface
beforeanycorrectionsaremade.
MEASURINGFRONTSPRINGHEIGHT
Tomeasurefrontspringheight,proceedasfol-
lows. SeeFigure7:
1. Findthedifferencebetweenthefollowing
measurementstakenatonelowercontrolarm.
(a)Fromfloortocenterofgreasefittinginthe
frontbushingofthelowercontrolarmbar.
(b)From floor tocenteroflowercontrolarmpin.
2. Thenfindthedifferencebetweenthesame
measurementstaken atthe otherlowercontrol arm.
3. Comparethedifferenceinthemeasurements
ofonesideascomparedwiththeother.There
shouldbenomorethan¼"differencebetween
thesemeasurements.
Frontspringheightwillbeaffectediftherear
springheightvariesmorethan¾ inchononeside
ascomparedwiththeotherside.Comparerear
springheightbymeasuringwitha steeltapefrom
thespringplatestotheframeoneachsideofthe
car.
Coilspringsareidentifiedbypartnumbersnear
theendofthecoil.Themarksfollowingthe
stampednumberscorrespondtothelastdigitin
thepartnumber.Forexampleon6 cylinder
models,partnumber1618524willappearas
161852( ) ( ) ( ) ( ).
On8 cylindermodelspartnumber1618753will
appearas= 875( ) ( ) ( ).
Eachmarkfollowingthestampednumberon
thecoilindicatesonenumberhigher.Thepart
numberalsoindicatesa definitestepinrelationto
carheight,thehigherthenumber,thehigherthe
carwillberaised.
CHANGINGSPRINGHEIGHT
Carheightcanbechangedapproximately¾
inchbyusinga lowerorhigherpartnumber.For
example,ifa springwithtwomarksisreplaced
witha springofthesamepartnumberseriesthat
hasthreemarks,thecarheightonthatsidewillbe
increasedapproximately % inch.
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FRONTSUSPENSIONSYSTEM11
CAMBERANDKINGPININCLINATION
Toadjustcamber,loosenlockscrew(Figure8),
andturntheeccentricbushing.Thecorrectsetting
canbeobtainedwithin½ revolutionineitherdi-
rectionfromthestartingpoint.Donotturnthe
eccentricbushinguntilitbindsagainsteitherside
oftheuppercontrolarmunderanycondition.Ad-
justcambertothecorrectspecificationsasshown
onpage8.Theleftsideshouldbeset½ degree
greaterthantherightsidetooffsetthetendency
ofthecartoleadtothesideona highlycrowned
road.
If thecambercannotbeadjustedwithinstandard
limits, andspringheighthasbeenchecked,meas-
urethekingpininclinationandinspectforbent
partsinthefrontsuspensionsystem.
CASTER
Thespecifiedcasterangleofminus(—)2 de-
greesto0degreeisobtainedbytheproperassem-
blyoftheupperandlowercontrolarms.Ifthe
casterangledoesnotcomewithinthese limits, look
forbentpartsinthefrontsuspensionsystem.
TOE-IN
J. MEASURING TOE-IN — Spinfrontwheels
andscribea thinlineinthecenterofthetreadof
eachtire.Placewheelsonturntablesandsetthem
inthestraight-aheadposition.Turnsteeringwheel
fulltravelinbothdirectionsthenreturnittomid-
travel,with the steeringwheel in thestraight-ahead
position.
Measurethedistanceathubheightbetween
pointsmarked"A"andpointsmarked"B."See
Figure10.Thedistancebetweenpoints "A" should
be¼"lessthanthedistancebetweenpoints"B."
2. ADJUSTING TOE-IN — Withfrontwheelsin
straight-aheadposition,loosenclampingboltson
theendsofthetierodsandadjusttierodsanequal
amountinproperdirectionuntiltoe-inis¼".
Ifroadtestshowsthesteeringwheeltobeimprop-
erlycentered,adjustboththerodsanequalamount
untilthesteeringwheeliscentered.
Shorteningtheleftandlengtheningtheright
tie-rodwillmovethesteeringwheel clockwise.
Onefullturnofthetie-rodwillmovethesteering
wheelaboutthreeinches,measuredattherim.
AMBERADJUSTINGWRENCH
Figure8 — AdjustingCamberAngle
Figure9 — CheckingCamber
MEASUREDISTANCEBETWEEN"A
THEN
MEASUREDISTANCEBETWEEN"B
DISTANCE"A"SHOULD6£
!¾in.l£55THAN
DISTANCE••»"
Figure10— MeasuringToe-In
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12PLYMOUTHSERVICEAAANUAL
Whenthetoe-inadjustmentiscorrect,position
theendsofthetierodsinthesocketssothatboth
studsareagainsteitherthefrontorbacksidesof
thesocketsandtightentheclampbolts.Thiswill
providesufficientangularrotationofthetierodon
theballstudsandpreventinterferenceonextreme
turns. Tightenclampboltsto10to15footpounds.
Ifboltsaretightenedtoomuch,theclampwillbe
distorted,losingitsclampingaction.Alwaysre-
checkthemid-positionofsteeringwheelafter
adjustingtoe-in.
TOE-OUTONTURNS
Withthefrontwheelsonturntables,checkthe
outerwheelanglewithinnerwheelat20degrees.
Theturntableundertheouterwheelshouldindi-
cate17½to19degrees.
Ifthereadingisnotwithintheselimits,thesteer-
ingknucklearmorpitmanarmmaybebent.
4.TIERODENDS
REMOVAL
Iftheremovalofthetie rod endproves to bediffi-
cult,inserta prybarbetweenthetierodendand
thesteeringknucklearm.Thenjarthetierodend
loosebytappingontherearendofthesteering
knucklearmwitha hammer.SeeFigure11.
Tierod endsshouldoperatefreely.Ifthereisany
evidenceofloosenessorbindingina tie-rodend,a
newoneshouldbeinstalled.
ASSEMBLY
Whennewtie rod endsareassembled to therod,
theendsmustbethreadedintherodanequal
amount.Clampboltsshouldbetightenedfrom10
to15footpounds.Ifboltsaretootight,clampwill
bedistortedandloseitsclampingaction.Always
makea finaladjustmentoftoe-inaftertierodends
havebeeninstalled.Thetierodendsmustbepo-
sitionedtoinsureequalclearancebetweenthe
socketsandballstudstopreventbinding.
5.STEERINGKNUCKLEAND
SUPPORT
REMOVAL
Whenitisnecessarytoserviceeitherthesteer-
ingknuckle,orthesupportarm,itisrecommended
thatthesteeringknucklesupport,steeringknuckle
andbrakesupportberemovedasanassemblyso
thatrepairscanbemadeona bench.Always
installnewbushings,sealsandlockpinswhen
overhaulingthesteeringknuckleandsupport
assembly.
Kingpinbushingsshouldberemovedandin-
stalledwiththeuseoftoolC-328.SeeFigures12
and13.
Thistoolremovesorinstallseitherbushingsor
needlebearingsinsteeringknuckle.
34x146
Figure11— RemovingtieRodEndFrom
SteeringKnuckleArm
Figure12— RemovingSteeringKnuckleBushings
withSpecialToolC¯328
(Useofpropersizeadaptor(2)willremoveoldpart(1)
withoutdamagingsteeringknuckle.)
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FRONTSUSPENSIONSYSTEM13
I7XW
Figure13— InstallingSteeringKnuckleBushings
withSpecialToolC-328
(Useofpropersizeadaptor(1)fitsbushingorbearing(2)
andfollowsitthroughtoitsproperlocation.)
IDfcNT!F¡CAÍ¡ON
MARK
BUSHING
IDENTIFICATION
Figure14— KingPinBushingsand
BearingInstalled
NOTE
On8 cylinder models, the upper steering
knuckle location has a needle bearing in place
of a bushing.
INSTALLINGSTEERINGKNUCKLEBUSHINGS
Installtheupperbushingfromthetopoíthe
steeringknuckle.Installupperandlowerbushing
withthegreasegroovetowardthewelchplugas
showninFigure14.Installlowerbushingandline
ream both bushingswithreamerandpilotbushing,
toolC-691.SeeFigure15.
NOTE
On8 cylinder models the upper bearing
must be removed during this operation and
temporarily replaced with the pilot bushing
to align the reamer. Reamer can be used with-
out pilot bushing on cars using two bushings.
Whena welchplughasbeeninstalledand
properlyseatedwitha special toolC-618,besure
tostakeit.SeeFigure16.
TOOLC369
Figure15— LineReamingKingPinBushings
withSpecialToolC-369
STAKEINPLA·lI
ASSHOWN
STAKESECURELY
4PLACESAS»
SHOWNBOTH'
ENDS
Figure16—WelchPlugInstalledandKingPin
LockPinStaked
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14PLYMOUTHSERVICEMANUAL
6.UPPERCONTROLARM
Basicallytheuppercontrolarmremainsthe
sameasthoseusedinpreviousmodels,however
itisapproximately¼"widerandismountedtothe
framewithtwoboltsinsteadoffour.Duetothese
changesthemethodofcenteringthepivotbaris
somewhatdifferent,therefore,itisnolongerpos-
sibletousetoolC-608forlocatingthecenter.Itcan
beused,however,tomaintainthefixeddimension
of7¼inchesoftheuppercontrolarmwhen
newpivotbar,bushings,etc.areinstalled.See
Figure2.
To installa newpivotbarandbushingsafterthe
removaloftheothersproceedasfollows:
Centerthepivotbarwithdustsealsinstalledin
thecontrolarm(as it. wouldbewheninstalledin
vehicles).Whileinthiscenteredposition,start
bushingsevenlyonbothendsofthepivotbarand
lubricatethemwitha suitablelubricant.Placetool
C-608onthepivotbarandexpandthetwojawsof
thetoolbytighteningtheexpanderwedgenutun-
tilthejawsofthetoolarejustsnugagainstthe
insideofthecontrolarm.
CAUTION
Make sure jaws of tool are seating fully on
inside face and not binding against control
arm flange.
Clamptoolandcontrolarmassemblyinvise
makingsurepivotbarremainedcentered.Thread
thebushingsintoeachsideofthecontrolarmuntil
theshoulderofthebushingscontactthesurfaceof
thecontrol arm. Tighten with a torquewrenchfrom
120to130footpounds.Removetoolandcheck
operationofthepivotbarforfreemovement(only
amoderategripshouldberequiredtoturnthe
pivotbar).
NOTE
Pivot bar may if necessary be rotated 1 turn
in either direction to correct a slight centering
error.
7. UPPERCONTROLARMPIN,
BUSHINGANDDUSTSEAL
Whenreplacingthepin,bushingordustseal
oftheuppercontrolarm,supportcarunderneath
lowercontrolarm,andremovethewheelandtire
assembly.Then,removethepivotbarattaching
boltsandliftthecontrolarmupandoutward.
Toinstalltheneweccentricbushinginthesteer-
ingknucklesupport,placeonesealonthebushing
atthehexagonalend.Placetheothersealonthe
oppositebossoftheuppercontrolarm.
ThenwithtoolC-736,depresstheouteredgeof
lipoftheseal.SeeFigure17.Slidethecontrolarm
andsealontothesteeringknucklesupportuntil
bothsealsfitsnuglyoverthebushing.Makesure
thepinholeisinalignment.Next,removethetool
andinstallthepin.
Lineupthepivotbarholeswiththeframecross
memberholesandinstalltheattachingboltsand
tighten.
8.LOWERCONTROLARMAND
FRONTSPRING
REMOVAL
Whenremovinga lowercontrolarmassembly
andfrontspring,removetheshockabsorberand
wheelandtire.Raisecarandplacea jackorsup-
portunderthelowercontrolarmtoberemoved.
Placejackorsupportunderframeneartheup-
sweepatthefront.Supportthelowercontrolarm
andlowerthecar.Removethecontrolarmpinand
raisefrontendofcartorelievepressureonfront
spring.Whenpressureisofffrontspring,remove
supportwhichwasplacedundercontrolarm,
swingarmdownandremovefrontspring.Thecon-
trolarmcanthenberemoved.
\fcAiANDB'<`>HING
IN' lÀÍUNK~P ' I
46x43
Figure17— InstallingUpperControlArmPin
BushingandDustSealswithSpecialToolC-736
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FRONTSUSPENSIONSYSTEM15
INSTALLATION
Whenoverhaulingthelowercontrolarmassem-
bly,alwaysinstallnewpivotbarbushingsand
dustseals.
Installdustsealsonpivotbarandpositionpivot
barinthecontrolarm.AssembletoolC-594tothe
pivotbar.
Thelowercontrolarmon6 and8 cylindermod-
els, basicallyandappearancewiseremainsthe
same.Thespringseatismountedtothelowerside
ofthecontrolarm.Thelowercontrolarmpivotbar
mountingboltlocationsarethesameon6 and8
cylindermodels.Duetothelocationofthese
mountingholes,toolC-594cannotbeusedfor
centeringthelowerpivotbar,butcanbeused
tomaintainthesetdimensionofthecontrol
armwheninstallingnewpivotbar,etc.Tocen-
tera replacementpivotbar,proceedasfollows:
(SeeFig.3).
Installdustsealsonpivotbarandclampinvise,
(flatmountingsurfacedown).Centerlowercon-
trolarmonpivotbar(bottomofspringseatupand
steeringknucklesupportendrestingonbench).
Whileinthiscenteredposition,startbushings
evenlyonbothendsofpivotbarandlubricate
themwitha suitablelubricant.
ModifytoolC-594byremovinglocatingstuds
(savestudsforuseonpreviousmodels)andplace
inpositiononpivotbar(openendsoftooldown).
Makingsuretoolremains in place,threadthebush-
ing(onetoyourright)intocontrolarmuntilthe
shoulderofthebushingcontactsmachinedsurface
ofcontrolarm.Tightento180footpounds.
Removetoolfromassemblyandreverseposition
ofassembly in vise(topofspringseatupassembly
restingonbench).RepositiontoolC-594onpivot
barandthreadremainingbushingintocontrolarm
usingsametorque.Removetoolandassembly
fromviseandcheckpivotbarforfreemovement.
Pivot bar
direction to may be
correct
NOTE
rotated one turn in
aslight centering either
error.
Placea jackorsupportunderthelowercontrol
arm, andlowerthecar to compressthespring.Line
uptheknucklesupportbushingandcontrolarm.
Installpinandtightennutto90-110footpounds.
IMPORTANT
Make certain the spring is properly seated
at both top and bottom.
9. FRONTSHOCKABSORBER
REMOVAL
Theupperendofthepistonrodhastwoflatsto
providea meansofholdingtheshockabsorber
whileremovingtheuppernut.Afterremovingthe
uppernut,removethetwocapscrewsfromthe
lowersupportbracketandremovetheshockab-
sorberbypullingitdownwardthroughthecoil
spring.
Thelowerbushingisassembledtotheshock
absorberbypressingitintotheeyewitha press
fit.Endpressuremaybeappliedonlytotheouter
sleeveofthebushingassembly.Thiscanbeeasily
doneinanarborpressbyusinga tubulardrift
havinga smallclearanceintheshockabsorber
eyeuntilitiscenteredorbyusingtoolC-3413.
Toreplaceanupperrubberbushing,removein-
nersleeveandinstallnewbushinginframe.
CAUTION
Oil, soap, or other lubricants, except water,
must not be used. The bushing assembly should
be thoroughly cleaned before installation.
INSTALLATION
Toreplaceshockabsorberassemblyextend
pistonrodfullyandplacelowerretainer(cup
washer)concavesideuponpistonrod.
UPPER
MOUNTING
LOWERMOUNTING
ASSEMBLY
SCREW
LOCKWASHER55PJ014
Figure18— FrontShockAbsorberInstallation
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16PLYMOUTHSERVICEMANUAL
Insertshockabsorberthroughopeninginspring
seatsopistonrodentersupperbushing.Installthe
twolowermountingscrewsandtorqueto35foot
pounds.
Installupperretainer(cupwasher)concaveside
downandnut.Tightennutto35footpounds.
CAUTION
Donot lubricate either the shock absorber,
piston rod or the rubber bushing.
10. DIAGNOSISPROCEDURES
CARLEADSTOONESIDE
Thetendencyofa cartoleadtoonesidecon-
tinuouslyissometimesreferredtoas"pullingto
theleft,"or"pullingtotheright."Besuretode-
terminewhethertheconditionisduetodriving
onhighlycrownedroads.
J. CAMBER AND CASTER — Ifcamberand
casterisnotequaloneachside,thecarwilllead
toonesideona levelroad.
Withunequalcamber,thecarmayleadtothe
sidewhichhasthehighestcamberreading.Ifcas-
ter isnotequal,thecarmaylead to thesidehaving
thelowestcasterreading.
Onmostcars,thecambersettingshouldagree
withthespecificationsshownonpage8,butwhen
thecarisdrivenona highlycrownedroad,the
cambercanbeincreasedontheleftside.However,
thecamberfortheleftwheel shouldnotbemore
than½ degreegreaterthanthatfortherightwheel
withinthespecifiedlimits.Ifthecambersetting
exceedsthisrecommendation,excessivewearon
theleftfronttiremayresult.
2. TIRES — Unequaltirepressurewillcausethe
cartoleadtothesidehavingthelowestpressure.
3. FRAME AND SUSPENSION UNITS — Bent
suspensionparts,orunequalwheelbasemaycre-
atea change in camberandcastergreatenoughto
causethecartopulltooneside.Tocheckfor
theseconditions,measurethewheelbase,center-
to-center,betweenthefrontandrearwheelson
bothsides.Thesemeasurementsshouldbeequal.
Iftheyarenot,lookfor:A brokenmainleafin
rearspring;a brokencenterboltinrearspring;
bentpartsinfrontsuspensionsystem;ora bent
frame.
4. BRAKES — Inspecttheadjustmentofeach
frontandrearwheelbrakefor"Dragging."
5. STEERING TUBE AND WORM ASSEMBLY—
Abentsteeringtubeandwormassemblywill
causehardsteeringandmayresultinthecar
pullingtooneside.Totestforthiscondition,jack
upthefrontendofthecarandturnsteeringwheel
toextremerightandleft.Ifintermittentdragis
felt,tubemaybebent.
WANDER
Theterm"wander"meansthetendencyofthe
cartodriftslightlytooneside,thentotheother,
undernormaldrivingconditionswhilethedriver
attemptstosteerstraightahead.
Thisconditionshouldnotbeconfusedwithnor-
malwandercausedbyhighorgustywindsstrik-
ingthesideofthecarwhendrivingathighspeeds.
J. KING PIN BUSHINGS AND STEERING CON-
NECTIONS — Tocheckkingpinbushingsfor
looseness,jackupthefrontendofthecarand
movewheelsinandout.Thecondition,ifpresent,
canbedeterminedby"feel."
Iftightnessappearstooriginateinthesteering
gearorsteeringcolumn,disconnectthesteering
geararmandturnthesteeringwheel,tocheck
fora bindinthesteeringcolumn.
2. STEERING WHEEL — Animproperlycen-
teredsteeringwheel willgivetheeffectofwander.
Thesteeringwheeliscorrectlycenteredwhenthe
spokesareequallypositioned,withthefront
wheelspointingstraightahead.
3. TIRES — A smoothtreadonfronttires,may
causewanderwhenthecarisdrivenovergravel
or"black-top"roads.Under-inflationofbothfront
orreartiresmaycauseunstablesteeringandre-
sultinwander.
4. CASTER — Bent frontwheel suspensionparts,
orunequalwheelbase,maycreatea changein
thecastergreatenough to causethecar to wander.
Tocheckfortheseconditions,measurethewheel-
base,center-to-centerbetweenthefrontandrear
wheelsonbothsides.Thesemeasurementsshould
beequal.Iftheyarenot,lookfor:A brokenmain
leafinrearspring;a brokencenterboltinrear
spring;bentpartsinfrontsuspensionsystem;or
abentframe.
FRONTENDNOISES
Thisparagraphisconfinedonlytothosenoises
whichcouldoriginateinthefrontwheelsuspen-
sionsystem.Thesenoisesshouldnotbeconfused
withthosecomingfromotherpartsofthecar.The
possiblepointswherenoisecanoriginateare:
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FRONTSUSPENSIONSYSTEM17
J. UPPER and LOWER CONTROL ARMS — In-
spectforloosenessintheupperandlowercontrol
armsbymovingthesteeringknucklesupportback
andforthwitha prybar.Loosenesscanbede-
terminedbyfeel#orpossiblybyshinyspotsonthe
cambereccentricbushingoneithersideofthe
wheel support.
Built-inclearanceisdesignedintothethreaded
bushingsofthefrontsuspensionlinkage to prevent
bindingofthejointsunderdeflection.Partsofthe
linkageshouldnotbereplacedunlesstheycause
noiseorunstablesteering,andshouldneverbe
replacedwithtightfittingpinsorbushings.
Thethreadedbushingsofthefrontsuspension
systemrequiremoreclearancethana smoothpin
andbushingtypejoint.Thethreadedpin"rides"
ontheV shapedthreadcutinthebushing.With
theweightofthecaronthebushing,thesideof
thepinthreadbearsagainstthesideofthethread
cutinthebushing.Newpartsshouldnotbein-
stalledunlessthereisendwisemovementofthe
pininthebushing.SeeFigure19.
2. WHEEL BEARINGS — Todetermineifthe
wheel bearingsarewornordamaged,roadtest
thecarandapplybrakes.Thisactionwilltake
someoftheloadoffthewheelbearings,andnoise
ifpresent,willdiminish,indicatingthatthebear-
NECESSARY
CLEARANCE
BUSHING
NOCLEARANCEONWORKINGSIDEOFPIN
INBUSHING-"V"THREADDESIGNPREVENTSEND
PLAYOFPINWHENUNDERNORMALLOAD
45X146
Figure19— NormalClearanceBetweenPin
andBushing
ingsareatfault.Raisefrontwheelsandcheck
forloosebearingsbymovingwheelsinandout.
Ifa wheelisloose,removeitandcheckcondition
ofbearingsandbearingcupsbeforetightening
thebearings.
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18PLYMOUTHSERVICEMANUAL
REARAXLE
DATAANDSPECIFICATIONS
Models
Type
DriveGearType
RatiosConventional
Overdrive
Powerîlite
RingGeartoDrivePinionBacklash
DifferentialCaseRun-Out
DifferentialSideGearClearance
AxleShaftEndPlay
DrivePinionBearingPreload
LubricantCapacity
P-26—P-28P-27—P-29
Semi-Floating
Hypoid
3.73to1.
Optional—Mountains
andhillycountry
4.1to1.
4.1to1.
3.73to1.3.54to1.
Optional—Mountains
andhillycountry
3.9to1.
.006to.010in.
0to.003in.
.004to.012in.
.003to.008in.
20-30in.lbs.withoutseal(SeePage24)
3½pts.
TORQUESPECIFICATIONS
AxleShaftNuts
RearAxleRingGearBoltNuts
DifferentialBearingCapScrews
DrivePinionFlangeNut
142ft.lbs.(min.)
35to40ft.lbs.
85to90ft.lbs.
250to280ft.lbs.
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19
SECTIONII
REARAXLE
Page
DataandSpecifications18
1. AxleDriveShafts,SealsandBearings19
2. DifferentialandCarrierAssembly21
3.DrivePinionBearingOilSeal30
4.DiagnosisProcedures31
1. AXLEDRIVESHAFTS,SEALS
ANDBEARINGS
AXLESHAFTENDPLAY
CHECKING ENDPLAY — Axleshaftendplay
is.003to.008inchwiththelowlimitpreferred.
Measureendplaybyclampinga dialgaugeon
thebrakesupport,withthewheel,hubanddrum
assemblyremoved.Placeindicatorbuttonagainst
endofaxleshaft.Thetotalendplayofbothaxle
shaftswillberecordedonthegaugewhenthe
shaftismovedinandout.SeeFigure1.
ADJUSTING END PLAY—End playiscontrolled
byshimsbetweenthebrakesupportplateandthe
axlehousingflange.Usespecial toolC-745topro-
tectoilsealwhenremovingbrakesupportplate.
Ifnecessary to removemorethan .020 inch in shims
todecreaseendplay,removeanequalamountof
shimsonbothsidestoretainthecentralposition
ofthethrustblock.Tootightanadjustmentwill
resultintheoverloadingofthewheelbearings.
AXLESHAFTREMOVAL
Removewheel,hubanddrumassembly,using
wheelpullerC-845.SeeFigure2.
CAUTION
Donot use knock-out type pullers or strike
endof axle shaft to loosen hub. This may dam-
age the rear wheel bearings, thrust blockand
opposite brake support plate.
Theaxlebearingouteroilsealismountedin
thebrakesupport.Toprotectsealagainstdamage
UNIVERSALWHfcü
AND
HUBPULLER
•J-
46x93
Figure1 — MeasuringAxleShaftEndPlayFigure2 — RemoveWheelandHub
ToolShownisNo.C-845
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