Toro 1P65F-2 User manual

FormNo.3429-270RevA
1P65F-2ServiceManual
Published:August2019
1P65FCand1P65FAenginespecicationsincluded
©2018—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
OriginalInstructions(EN)
Contactusatwww.Toro.com.
AllRightsReserved

RevisionHistory
RevisionHistoryPage21P65F-2ServiceManual
3429-270RevA

Preface
ThisservicemanualwaswrittenexpresslyforToroservicetechnicians.TheT oroCompanyhasmade
everyefforttomaketheinformationinthismanualcompleteandcorrect.
Basicshopsafetyknowledgeandmechanical/electricalskillsareassumed.TheT ableofContentslists
thesystemsandtherelatedtopicscoveredinthismanual.
Wearehopefulthatyouwillndthismanualavaluableadditiontoyourserviceshop.Ifyouhaveany
questionsorcommentsregardingthismanual,pleasecontactusatthefollowingaddress:
TheToroCompany
RLC/SWSCustomerCareDepartment
8111LyndaleAvenueSouth
Bloomington,MN55420
TheT oroCompanyreservestherighttochangeproductspecicationsormakechangestothismanual
withoutnotice.
1P65F-2ServiceManualPage3Preface
3429-270RevA

ServiceProcedureIcons
ThefollowingiconsappearthroughoutthisServiceManualtobringattentionto
specicimportantdetailsofaserviceprocedure.
CriticalProcess
Thisiconisusedtohighlight:
•Installingsafetyequipment(shields,guards,seatbelts,brakes,andR.O.P .S.
components)thatmayhavebeenremoved
•Dimensionsorsettingsthatmustbemaintainedforpropermachineoperation
•Aspecicfastenertighteningsequence
•Componentorientationthatmaynotbeobvious
CriticalTorque
Thisiconisusedtohighlightanassemblytorquerequirementthatisdifferent
thanwhatisrecommendedintheStandardTorqueT ables.
FluidSpecications
Thisiconisusedtohighlightuidspecicationsandcapacitiesthatareless
common,andmaynotappearonthemachineservicedecalorinthemachine
Operator’sManual.
Note:RefertotheservicedecalonthemachineandthemachineOperator’s
Manualforcommonlyuseduidspecicationsandcapacities.
PrefacePage41P65F-2ServiceManual
3429-270RevA

TableofContents
Preface................................................................................................................3
Chapter1:Safety............................................................................................1–1
SafetyInstructions.......................................................................................1–2
Chapter2:SpecicationsandMaintenance....................................................2–1
Specications...............................................................................................2–2
TorqueSpecications...................................................................................2–9
Chapter3:Troubleshooting.............................................................................3–1
GeneralTroubleshooting..............................................................................3–3
Chapter4:EngineT opEnd..............................................................................4–1
GeneralInformation.....................................................................................4–2
ServiceandRepairs.....................................................................................4–3
Chapter5:AirIntakeSystem...........................................................................5–1
GeneralInformation.....................................................................................5–2
ServiceandRepairs.....................................................................................5–3
Chapter6:FuelSystem...................................................................................6–1
GeneralInformation.....................................................................................6–2
ServiceandRepairs.....................................................................................6–3
Chapter7:CompressionSystem.....................................................................7–1
GeneralInformation.....................................................................................7–2
ServiceandRepairs.....................................................................................7–3
Chapter8:ElectricalSystem...........................................................................8–1
GeneralInformation.....................................................................................8–2
ServiceandRepairs.....................................................................................8–3
Chapter9:EngineLowerEnd..........................................................................9–1
GeneralInformation.....................................................................................9–2
ServiceandRepairs.....................................................................................9–3
1P65F-2ServiceManualPage5Preface
3429-270RevA

PrefacePage61P65F-2ServiceManual
3429-270RevA

Chapter1
Safety
TableofContents
SafetyInstructions................................................................................................................................1–2
ThinkSafetyFirst...............................................................................................................................1–2
1P65F-2ServiceManualPage1–1Safety
3429-270RevA

SafetyInstructions
DANGER
Thissafetysymbolmeansdanger.Whenyouseethissymbol,
carefullyreadtheinstructionsthatfollow.Failuretoobeythe
instructionscouldcauseseriouspermanentinjury,disability,or
death.
WARNING
Thissafetysymbolmeanswarning.Whenyouseethissymbol,
carefullyreadtheinstructionsthatfollow.Failuretoobeythe
instructionscanresultinseriousinjury.
CAUTION
Thissafetysymbolmeanscaution.Whenyouseethissymbol,
carefullyreadtheinstructionsthatfollow.Failuretoobeythe
instructionscanresultinminortomoderateinjuryand/ordamage
topropertyorequipment.
ThinkSafetyFirst
Avoidunexpectedstartingofengine…
Alwaysturnofftheengine,removetheignitionkeyanddisconnectthesparkplug
wire(s)beforecleaning,adjusting,orrepair.
Avoidlacerationsandamputations…
Stayclearofallmovingpartswhenevertheengineisrunning.Treatallnormally
movingpartsasiftheyweremovingwhenevertheengineisrunningorhas
thepotentialtostart.
Avoidburns…
Donottouchtheengine,mufer,orothercomponents,whichmaybehotduring
operation,whiletheunitisrunningorshortlyafterithasbeenrunning.
Avoidresandexplosions…
Useextremecareinhandlingfuel.Itisammableanditsvaporsareexplosive.
Extinguishallcigarettes,cigars,pipes,andothersourcesofignition.Avoid
spillingfuelandneversmokewhileworkingwithanytypeoffuelorlubricant.
Wipeupanyspilledfueloroilimmediately.Neverremovethefuelcaporadd
fuelwhentheengineisrunning.Alwaysuseapproved,labeledcontainersfor
storingortransportingfuelandlubricants.Donotaddordrainfuelinanenclosed
space.Donotstorethemachineorfuelcontainerwherethereisanopename,
spark,orpilotlight,suchasonawaterheaterorotherappliance.
Avoidasphyxiation…
Donotoperateanengineinaconnedareawithoutproperventilation.
Avoidinjuryfrombatteries…
Safety:SafetyInstructionsPage1–21P65F-2ServiceManual
3429-270RevA

ThinkSafetyFirst(continued)
Batteryacidispoisonousandcancauseburns.Avoidcontactwithskin,eyes
andclothing.Batterygasescanexplode.Keepcigarettes,sparksandames
awayfromthebattery.
Avoidinjuryduetoinferiorparts…
Useonlyoriginalequipmentpartstoensurethatimportantsafetycriteriaaremet.
Avoidinjurytobystanders…
Alwayscleartheareaofbystandersbeforestartingortestingpowered
equipment.
Avoidinjuryduetoprojectiles…
Alwayscleartheareaofsticks,rocksoranyotherdebristhatcouldbepickedup
andthrownbythepoweredequipment.
Avoidmodications…
Neveralterormodifyanypartunlessitisafactoryapprovedprocedure.
Avoidunsafeoperation…
Alwaystestthesafetyinterlocksystemaftermakingadjustmentsorrepairson
themachine.RefertotheElectricalsectioninthismanualformoreinformation.
Avoidelectricalshock…
Nevertouchelectricalwiresorcomponentswhiletheengineisrunning.They
canbesourcesofshock.De-energizethesystemifyouarehavingtodorepairs.
Iftestingelectricalcomponentsensureyouareworkinginadryenvironment.
HydraulicSystem...
Releaseallpressureinthehydraulicsystembeforeperforminganyworkon
thesystem.Keepyourbodyandhandsawayfrompin-holeleaksornozzles
thatejecthydraulicuidunderhighpressure.Donotuseyourhandstosearch
forleaks.Hydraulicuidescapingunderpressurecanhavesufcientforceto
penetratetheskinandcauseseriousinjury.Seekmedicalattentionrightawayif
hydraulicuidgetsintheskin.
PersonalProtectiveEquipment…
Useappropriatepersonalprotectiveequipment(PPE)forprotectingyourself
frompotentialhazardsintheenvironmentinwhichyouwillwork.Eachprocess
outlinedinthismanualmayneeddifferentPPEtoprotecttheserviceperson.
UsetheproperPPEforthetaskathand.
Tools…
Alltoolsshouldbeinproperworkingorder.Donotusetoolsthatarebrokenorin
disrepair.Usethepropertoolfortheproperapplication.
Lifts,Hoists,andJacks…
Alllifts,hoists,andjacksshouldbeusedinaccordancewiththemanufacturer
information.Inspectlifts,hoists,andjackspriortouse.Donotoverloadlifts,
hoists,andjacks.Donotworkunderasuspendedload.Ensurechockblocks
areusedonequipmentthatcanmove.Useliftsorjacksandjackstandsthat
areratedtosupportthetotalweightofthemachineandanyattachments.Do
notrelyonjackstosupportthemachine.Ifyouareunsureoftheoperationof
anylifts,hoists,andjacksdonotuse.
FireExtinguishers…
Theproperclassofreextinguishershouldbeusedincaseofre.
1P65F-2ServiceManualPage1–3Safety:SafetyInstructions
3429-270RevA

ThinkSafetyFirst(continued)
ClassAextinguishersareforordinarycombustiblematerialssuchaspaper,
wood,cardboard,andmostplastics.Thenumericalratingonthesetypesof
extinguishersindicatestheamountofwateritholdsandtheamountofreitcan
extinguish.Geometricsymbol(greentriangle).
ClassBresinvolveammableorcombustibleliquidssuchasgasoline,
kerosene,greaseandoil.ThenumericalratingforclassBextinguishers
indicatestheapproximatenumberofsquarefeetofreitcanextinguish.
Geometricsymbol(redsquare).
ClassCresinvolveelectricalequipment,suchasappliances,wiring,circuit
breakersandoutlets.NeverusewatertoextinguishclassCres-theriskof
electricalshockisfartoogreat!ClassCextinguishersdonothaveanumerical
rating.TheCclassicationmeanstheextinguishingagentisnon-conductive.
Geometricsymbol(bluecircle).
ABC
reextinguishersareadrychemicaltypeusedformultiplepurposes.Seeabove
informationfordescription.
Ensurereextinguishersareserviceableandreplaceanythataredischargedor
outofinspectiondates.
Safety:SafetyInstructionsPage1–41P65F-2ServiceManual
3429-270RevA

Chapter2
SpecicationsandMaintenance
TableofContents
Specications.......................................................................................................................................2–2
TorqueSpecications...........................................................................................................................2–9
EquivalentsandConversions...........................................................................................................2–14
U.S.toMetricConversions..............................................................................................................2–15
1P65F-2ServiceManualPage2–1SpecicationsandMaintenance
3429-270RevA

Specications
1P65F–2EngineSpecications
Model1P65F-2
EngineNameToro
TypeSingleCylinder4–stroke,ForcedAirCooledOHVEngine
BoreXStroke65mmx48mm
Displacement159cc
CompressionRatio7.6:1
LubricationSplash
StartingRecoil/Electric
RotationCounter-Clockwise(fromPTOSide)
IgnitionSystemTransistorizedMagnetoIgnition
AirCleanerFoam/Paper
FuelTypeUnleadedGasoline87Octane10%Ethanol
OilCapacity18oz(0.53L)
Dimension(LxWxH)15in.x13.5in.x10in.(38.10x34.29x25.40cm)
Weight31lbs.(14.06kg)
Operating(top)RPM3000±100RPM
1P65F–2EnginePartSpecications
PartItemStandardServiceLimit
CylinderHeadWarpageN/A0.004in.(0.10mm)
CylinderSleeve(InsideDiameter)2.559in.(65mm)2.565in.(65.165mm)
SkirtOutsideDiameter2.558in.(64.985mm)2.552in.(64.845mm)
ClearancetoCylinder0.00059-0.00196in.
(0.015-0.05mm)N/A
PistonPinBoreInside
Diameter0.512in.(13.002mm)0.514in.(13.048mm)
Piston
Piston-PinClearance0.00008-0.00055in.
(0.002-0.014mm)0.00314in.(0.08mm)
OutsideDiameter0.512in.(13.0mm)0.510in.(12.954mm)
PistonPinSideClearance(Top/Middle)0.00056-0.00177in.
(.015-0.045mm)0.0059in.(0.15mm)
EndGap(Top/Middle)0.0078-0.0156in.(0.2-0.4
mm)0.040in.(1.0mm)
Width(T op/Middle)0.0397in.(1.0mm)0.0342in.(0.87mm)
PistonRing
Width(OilRing)0.098in.(2.5mm)0.093in.(2.37mm)
SmallEndInsideDiameter0.513in.(13.02mm)0.515in.(13.07mm)
BigEndInsideDiameter1.024in.(26.02mm)1.026in.(26.07mm)
LargeEndtoCrankJournal
Clearance
0.0016-0.0025in.
(0.04-0.063mm)0.0047in.(0.12mm)
ConnectingRod
LargeEndSideClearance0.0039-0.0275in.(0.1-0.7
mm)0.0433in.(1.1mm)
CrankshaftCrankPinOutsideDiameter1.022in.(25.98mm)1.020in.(25.92mm)
SpecicationsandMaintenance:SpecicationsPage2–21P65F-2ServiceManual
3429-270RevA

1P65F–2EnginePartSpecications(continued)
PartItemStandardServiceLimit
Clearance(Cold)Intake0.004-0.006in.(0.10-0.15
mm)N/A
Clearance(Cold)Exhaust0.006-0.008in.(0.15-0.20
mm)N/A
StemDiameter(Intake)0.216in.(5.48mm)0.209in.(5.318mm)
Valve
StemDiameter(Exhaust)0.214in.(5.44mm)0.208in.(5.275mm)
InsideDiameter(Intake,
Exhaust)0.2165in.(5.50mm)0.2193in.(5.572mm)
StemtoGuideClearance
(Intake)
0.00039-0.00133in.
(0.01-0.034mm)0.00393in.(0.10mm)
ValveGuide
StemtoGuideClearance
(Exhaust)
0.00196-0.00275in.
(0.05-0.070mm)0.0047in.(0.12mm)
ValveSeatSeatWidth0.0315in.(0.8mm)0.0787in.(2.0mm)
ValveSpringFreeLength1.202in.(30.5mm)1.141in.(29.0mm)
Height(Intake)1.091in.(27.72mm)1.080in.(27.45mm)
Height(Exhaust)1.093in.(27.78mm)1.0826in.(27.50mm) Camshaft
OutsideDiameter(Bearing)0.550in.(13.984mm)0.547in.(13.916mm)
CamshaftHoleDiameter0.551in.(14.0mm)0.553in.(14.048mm)
CrankcaseCoverCrankshaftHoleDiameter1.000in.(25.4mm)1.004in.(25.52mm)
SparkPlugGapNGKBPR6HS/Champion
RL87YCGap0.030in.(0.7-0.8mm)
Resistance(Primary)1.3-1.7ohmsN/A
Resistance(Secondary)5.4-6.2ohmsN/A
IgniterCoils
GaptoFlywheel0.0157±0.007in.(0.4-0.2
mm)N/A
1P65F–2EngineTorqueSpecications
ItemScrewThreadTorque
CylinderHeadBoltM822-26ft-lbs.(30-36Nm)
ConnectingRodBoltM7108-132in-lbs.(13-15Nm)
FlywheelNutM14(specialnut)59-66ft-lbs.(80-90Nm)
PivotAdjustingNutM5(specialnut)52-87in-lbs.(6-10Nm)
CrankcaseCoverBoltM670-105in-lbs.(8-12Nm)
MuferNutM670-105in-lbs.(8-12Nm)
AirCleanerNutM652-87in-lbs.(6-10Nm)
Recoil(FanCoverNut)M652-87in-lbs.(6-10Nm)
OilDrainBoltM1013-18ft-lbs.(18-25Nm)
FuelTankBolt/NutM613-18ft-lbs.(18-25Nm)
GovernorArmPinchNutM670-105in-lbs.(8-12Nm)
CarburetorBowlMountScrewM852–79ft-lbs.(6-9Nm)
FuelDrainScrewM652-79in-lbs.(6-9Nm)
ValveCoverBoltM690in-lbs.(10Nm)
1P65F-2ServiceManualPage2–3SpecicationsandMaintenance:Specications
3429-270RevA

1P65F–2EngineTorqueSpecications(continued)
ItemScrewThreadTorque
M4bolt16-26in-lbs.(2-3Nm)
M5bolt/nut39-56in-lbs.(4.5-6.5Nm) StandardTorqueValue
M6bolt/nut70-105in-lbs.(8-12Nm)
1P65FCEngineSpecications
Model1P65FC
EngineNameToro
TypeSingleCylinder4-Stroke,ForcedAirCooledOHVEngine
BoreXStroke65mmx48mm
Displacement159cc
CompressionRatio8to1
LubricationSplash
StartingRecoil/Electric
RotationCounter-Clockwise(fromPTOSide)
IgnitionSystemTransistorizedMagnetoIgnition
AirCleanerFoam/Paper
FuelTypeUnleadedGasolineMinimum87Octane10%Ethanol
OilCapacityMaxFill20oz(0.59L)
Dimension(LxWxH)15in.x13.5in.x14in.(38.10x24.29x35.56cm)
Weight26.4lbs.(11.97kg)
Operating(Top)RPM3000±100RPM
1P65FCEnginePartSpecications
PartItemStandardServiceLimit
CylinderHeadWarpageN/A0.004in.(0.10mm)
CylinderSleeveT aper/OutofRound
(InsideDiameter)2.559in.(65mm)2.566in.(65.165mm)
SkirtOutsideDiameter2.558in.(64.985mm)2.552in.(67.845mm)
ClearancetoCylinder0.00059-0.00196in.
(0.015-0.05mm)0.0047in.(0.12mm)
PistonPinBoreInside
DiameterN/A0.514in.(13.048mm)
Piston
Piston-PinClearance0.00007-0.0005in.
(0.002-0.014mm)0.00314in.(0.08mm)
OutsideDiameter0.512in.(13.0mm)0.510in.(12.954mm)
PistonPinSideClearance0.00059-0.00177in.
(.015-0.045mm)0.0059in.(0.15mm)
EndGap(Top/Middle)0.0078-0.0157in.(0.2-0.4
mm)0.040in.(1.0mm)
Width(T op/Middle)0.0393in.(1.0mm)0.0342in.(0.87mm)
PistonRing
Width(OilRing)0.098in.(2.5mm)0.093in.(2.37mm)
SpecicationsandMaintenance:SpecicationsPage2–41P65F-2ServiceManual
3429-270RevA

1P65FCEnginePartSpecications(continued)
PartItemStandardServiceLimit
SmallEndInsideDiameter0.513in.(13.02mm)0.515in.(13.07mm)
LargeEndInsideDiameter1.024in.(26.02mm)1.026in.(26.07mm)
LargeEndtoCrankJournal
Clearance
0.0016-0.0025in.
(0.04-0.063mm)0.0047in.(0.12mm)
ConnectingRod
LargeEndSideClearance0.0039-0.0275in.(0.1-0.7
mm)0.0433in.(1.1mm)
CrankshaftCrankPinOutsideDiameter1.022in.(25.98mm)1.020in.(25.92mm)
Clearance(Cold)Intake0.004in.(0.10mm)N/A
Clearance(Cold)Exhaust0.006in.(0.15mm)N/A
StemDiameter(Intake)0.216in.(5.48mm)0.209in.(5.318mm)
Valve
StemDiameter(Exhaust)0.214in.(5.44mm)0.208in.(5.275mm)
InsideDiameter(Intake,
Exhaust)0.2165in.(5.50mm)0.2193in.(5.572mm)
StemtoGuideClearance
(Intake)
0.00039-0.00133in.
(0.01-0.034mm)0.00393in.(0.10mm)
Valveguide
StemtoGuideClearance
(Exhaust)
0.0019-0.0027in.
(0.05-0.070mm)0.0047in.(0.12mm)
ValveSeatSeatWidth0.0314in.(0.8mm)0.0787in.(2.0mm)
ValveSpringFreeLength1.2007in.(30.5mm)1.1417in.(29.0mm)
Height(Intake)1.0905in.(27.72mm)1.0807in.(27.45mm)
Height(Exhaust)1.0937in.(27.78mm)1.0826in.(27.50mm) CamShaft
OutsideDiameter(Bearing)0.550in.(13.984mm)0.548in.(13.916mm)
CamshaftHoleDiameter0.551in.(14.0mm)0.553in.(14.048mm)
CrankcaseCoverCrankshaftHoleDiameter1.000in.(25.4mm)1.005in.(25.52mm)
SparkPlugGapNGKBPR6HS/Champion
RL87YCGap0.030in.(0.7-0.8mm)
Resistance(Primary)1.1-1.6ohmsN/A
Resistance(Secondary)10.5Kohms±15%N/A IgniterCoils
GaptoFlywheel0.010in.(0.254mm)N/A
1P65FCEngineTorqueSpecications
ItemScrewThreadTorque
CylinderHeadBoltM825ft-lbs.(34Nm)
ConnectingRodBoltM7114in-lbs(13Nm)
FlywheelNutM1462ft-lbs.(85Nm)
RockerArmAdjustingNutM6120in-lbs.(14Nm)
CrankcaseCoverBoltM690in-lbs.(10Nm)
MuferNutM690in-lbs.(10Nm)
AirCleanerNutM672in-lbs.(8Nm)
Recoil(FanShroud)NutM672in-lbs.(8Nm)
OilDrainBoltM10186in-lbs.(21Nm)
FuelTankBolt/NutM690in-lbs.(10Nm)
1P65F-2ServiceManualPage2–5SpecicationsandMaintenance:Specications
3429-270RevA

1P65FCEngineTorqueSpecications(continued)
ItemScrewThreadTorque
FuelDrainScrewM652–79in-lbs.(6–9Nm)
ValveCoverBoltM690in-lbs.(10Nm)
CarburetorMountScrewM852–79in-lbs.(6–9Nm)
SparkPlugN/A22ft-lbs.(30Nm)
GovernorArmPinchNutM690in-lbs.(10Nm)
IgnitionandChargeCoilBoltsM690in-lbs.(10Nm)
ElectricStarterMotorBoltsM690in-lbs.(10Nm)
M5bolt/nut54in-lbs.(6Nm)
M6bolt/nut90in-lbs.(10Nm)
M8bolt/nut228in-lbs.(26Nm)
M10bolt/nut28ft-lbs.(38Nm)
StandardTorqueValue
M12bolt/nut41ft-lbs.(55Nm)
1P65FAEngineSpecications
Model1P65FA
EngineNameToro
TypeSingleCylinder4-Stroke,ForcedAirCooledOHVEngine
BoreXStroke65mmx48mm
Displacement159cc
CompressionRatio8to1
LubricationSplash
StartingRecoil/Electric
RotationCounter-Clockwise(fromPTOSide)
IgnitionSystemTransistorizedMagnetoIgnition
AirCleanerFoam/Paper
FuelTypeUnleadedGasolineMinimum87Octane10%Ethanol
OilCapacityMaxFill20oz(0.59L)
Dimension(LxWxH)15x13.5x14in.(38.10x34.29x35.56cm)
Weight26.4lbs.(11.97kg)
Operating(Top)RPM3000±100RPM
Idlespeed2200±150RPM
1P65FAEnginePartSpecications
PartItemStandardServiceLimit
CylinderHeadWarpageN/A0.004in.(0.10mm)
CylinderOutofRoundSleeve(InsideDiameter)2.559in.(65mm)2.566in.(65.165mm)
SpecicationsandMaintenance:SpecicationsPage2–61P65F-2ServiceManual
3429-270RevA

1P65FAEnginePartSpecications(continued)
PartItemStandardServiceLimit
SkirtOutsideDiameter2.558in.(64.985mm)2.553in.(64.845mm)
ClearancetoCylinder0.00059-0.00196in.
(0.015-0.05mm)0.0047in.(0.12mm)
PistonPinBoreInside
Diameter0.512in.(13.002mm)0.514in.(13.048mm)
Piston
Piston-PinClearance0.00007-0.0005in.
(0.002-0.014mm)0.00314in.(0.08mm)
PistonPinOutsideDiameter0.512in.(13.0mm)0.510in.(12.954mm)
EndGap(Top/Middle)0.0078-0.0156in.(0.2-0.4
mm)0.040in.(1.0mm)
Width(T op/Middle)0.0590in.(1.5mm)0.0539in.(1.37mm)
PistonRing
Width(OilRing)0.098in.(2.5mm)0.093in.(2.37mm)
SmallEndInsideDiameter0.513in.(13.02mm)0.515in.(13.07mm)
LargeEndInsideDiameter1.024in.(26.02mm)1.026in.(26.07mm)
LargeEndtoCrankJournal
Clearance
0.0016-0.0025in.
(0.04-0.063mm)0.0047in.(0.12mm)
ConnectingRod
LargeEndSideClearance0.0039-0.0275in.(0.1-0.7
mm)0.0433in.(1.1mm)
CrankshaftCrankPinOutsideDiameter1.023in.(25.98mm)1.020in.(25.92mm)
Clearance(Cold)Intake0.004-0.006in.(0.10-0.15
mm)N/A
Clearance(Cold)Exhaust0.006-0.008in.(0.15-0.20
mm)N/A
StemDiameter(Intake)0.216in.(5.48mm)0.209in.(5.318mm)
Valve
StemDiameter(Exhaust)0.214in.(5.44mm)0.208in.(5.275mm)
InsideDiameter(Intake,
Exhaust)0.2165in.(5.50mm)0.2193in.(5.572mm)
StemtoGuideClearance
(Intake)
0.00039-0.00133in.
(0.01-0.034mm)0.00393in.(0.10mm)
ValveGuide
StemtoGuideClearance
(Exhaust)
0.00196-0.00275in.
(0.05-0.070mm)0.0047in.(0.12mm)
ValveSeatSeatWidth0.0315in.(0.8mm)0.0787in.(2.0mm)
ValveSpringFreeLength1.200in.(30.5mm)1.142in.(29.0mm)
Height(Intake)1.091in.(27.7mm)1.081in.(27.45mm)
Height(Exhaust)1.093in.(27.75mm)1.0826in.(27.50mm) CamShaft
OutsideDiameter(Bearing)0.550in.(13.984mm)0.548in.(13.916mm)
CamshaftHoleDiameter0.551in.(14.0mm)0.553in.(14.048mm)
CrankcaseCoverCrankshaftHoleDiameter1.000in.(25.4mm)1.005in.(25.52mm)
SparkPlugGapNGKBPR6HS/Champion
RL87YCGap0.030in.(0.7-0.8mm)
Resistance(Primary)1.1-1.6ohmsN/A
Resistance(Secondary)10.5Kohms±15%N/A IgniterCoils
GaptoFlywheel0.010in.(0.254mm)N/A
1P65FAEngineTorqueSpecications
1P65F-2ServiceManualPage2–7SpecicationsandMaintenance:Specications
3429-270RevA

1P65FAEngineTorqueSpecications(continued)
ItemScrewThreadTorque
CylinderHeadBoltM825ft-lbs.(34Nm)
ConnectingRodBoltM7114in-lbs.(13Nm)
FlywheelNutM1462ft-lbs.(85Nm)
RockerArmPivotStudM822ft-lbs.(30Nm)
RockerArmLockNutM6120in-lbs(14Nm)
CrankcaseCoverBoltM690in-lbs.(10Nm)
MuferNutsM690in-lbs.(10Nm)
AirCleanerNutsM672in-lbs.(8Nm)
Recoil(FanCoverNut)M672in-lbs.(8Nm)
OilDrainBoltM10180in-lbs.(21Nm)
FuelTankBolt/NutM690in-lbs.(10Nm)
FuelDrainScrewM652–79in-lbs.(6–9Nm)
ValveCoverboltM690in-lbs.(10Nm)
CarburetorBowlMountScrewM852–79in-lbs.(6–9Nm)
SparkPlugN/A22ft-lbs.(30Nm)
GovernorArmPinchNutM690in-lbs.(10Nm)
IgnitionandChargeCoilBoltsM690in-lbs.(10Nm)
ElectricStarterMotorBoltsM690in-lbs.(10Nm)
M5bolt/nut54in-lbs.(6Nm)
M6bolt/nut90in-lbs.(10Nm)
M8bolt/nut228in-lbs.(26Nm)
M10bolt/nut28ft-lbs.(38Nm)
StandardTorqueValue
M12bolt/nut41ft-lbs.(55Nm)
SpecicationsandMaintenance:SpecicationsPage2–81P65F-2ServiceManual
3429-270RevA

TorqueSpecications
Therecommendedfastenertorquevaluesarelistedinthefollowingtables.For
criticalapplications,asdeterminedbyToro,eithertherecommendedtorqueora
torquethatisuniquetotheapplicationisclearlyidentiedandspeciedinthe
servicemanual.
Thesetorquespecicationsfortheinstallationandtighteningoffastenersshall
applyforallfastenerswhichdonothaveaspecicrequirementidentiedin
theservicemanual.Thefollowingfactorsshallbeconsideredwhenapplying
torque:cleanlinessofthefastener,useofathreadsealant(Loctite),degreeof
lubricationonthefastener,presenceofaprevailingtorquefeature,hardness
ofthesurfaceunderneathofthefastener’shead,orsimilarconditionwhich
affectstheinstallation.
Asnotedinthefollowingtables,torquevaluesshouldbereducedby25%for
lubricatedfastenerstoachievethesimilarstressasadryfastener.T orquevalues
mayalsohavetobereducedwhenthefasteneristhreadedintoaluminumor
brass.Thespecictorquevalueshouldbedeterminedbasedonthealuminum
orbrassmaterialstrength,fastenersize,lengthofthreadengagement,etc.
Thestandardmethodofverifyingtorqueshallbeperformedbymarkingalineon
thefastener(headornut)andmatingpart,thenbackofffastener1/4ofaturn.
Measurethetorquerequiredtotightenthefasteneruntilthelinesmatchup.
FastenerIdentication
InchSeriesBoltsandScrews
Figure1
1.Grade13.Grade8
2.Grade5
1P65F-2ServiceManualPage2–9SpecicationsandMaintenance:TorqueSpecications
3429-270RevA

MetricBoltsandScrews
Figure2
1.Class8.82.Class10.9
SpecicationsandMaintenance:TorqueSpecicationsPage2–101P65F-2ServiceManual
3429-270RevA