7-TROUBLESHOOTING
7-TROUBLESHOOTING###_8_###
FAULTCODERESOLUTION
Enginetroubleshooting
NOTE:thischaptershowshowtoeasilydiagnoseproblemsrelatingtotheengineanddescribesthesolutionstobe
adopted.Ifyouareunabletodeterminethecauseofthefailure,orifthelatterisdifculttorectify,consultyourCASE
CONSTRUCTIONDealer.
PROBLEMPOSSIBLECAUSESOLUTION
Batteryisrunningout
Chargeorreplace
Disconnection,looseness,or
corrosionofthebatteryterminals
Repairthecorrodedarea,andthen
tightensecurely
Startergroundwireterminal
detached,loose,orcorroded
Repairthecorrodedarea,andthen
tightensecurely
Engineoilviscosityistoohigh
Replaceitwithoilwithappropriate
viscosity
Enginedoesnotstart.Starterdoes
notrotateorrotationisweak
Starterorelectricalsystemfaulty
ConsultyourCASECONSTRUCTION
Dealer
Nofuelinfueltank
Checkthatthereisnofuelleakage
andrefuel
Airintrusioninthefuelsystem
Removetheair
Cloggingofthefuellter
Removemoistureandreplacethe
element
Fuelisfrozen
Warmupthefuelpipewithhotwater,
orwaituntiltheairtemperaturerises
Failureofthesupplypump
ConsultyourCASECONSTRUCTION
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Cloggingofthesupplypumpstrainer
Cleanthestrainer
Failureoftheenginecontrolsystem
Preheatingsystemfaulty
ConsultyourCASECONSTRUCTION
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Enginedoesnotstart.Starterturns
over
Overowvalveremainsopen
Cleanorreplacethesupplypump,fuel
lterorfuelportoverowvalve
Cloggingofthefuellter
Removemoistureandreplacethe
element
Cloggingofthepre-fuellter
Cleanorreplacetheelement
Failureoftheenginecontrolsystem
ConsultyourCASECONSTRUCTION
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Cloggingoftheaircleaner
Cleanorreplacetheelement
Failureofthesupplypump
ConsultyourCASECONSTRUCTION
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Theenginestarts,butstops
immediately
CloggingofthesupplypumpstrainerCleanthestrainer
Failureofthefuelsystem
ConsultyourCASECONSTRUCTION
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Waterorairintrusioninthefuel
system
Removetheair
Enginerevolutionisunstable
Failureoftheenginecontrolsystem
ConsultyourCASECONSTRUCTION
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Enginerotationdoesnotincrease
Cloggingofthefuellter
Removemoistureandreplacethe
element
Insufcientwarming-upPerformwarming-up
ToomuchengineoilAdjusttotheappropriateoilamount
Failureoftheenginecontrolsystem
Failureofthesupplypump
Failureofthefuelsystem
ConsultyourCASECONSTRUCTION
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Theexhaustsmokeiswhite
Continuousidlingforalongperiod
(morethantwohours)
Raisetheenginespeedandconrm
thatwhitesmokeisnotemitted
7-1