Toro 303447 - Cylinder Leakage Testing

AnothertesttoperformisaCylinderleakagetest.
Whenperformingacylinderleakagetest,adefined
amountofairispumpedintothecylinder.
Mymeasuringhowmuchpressurecanbecreatedinthe
cylinder,theamountofleakagecanalsobedetermined.
ThinkofthisasAirinvs.
Airoutindicatesleakageinthe
cylinder.
Identifiescylinderwhichhastheproblem.
Alsowillprovideinformationonwheretheproblemis.
Airleakingoutoftheexhaustindicatesaleakingexhaust
valve.
Airleakingfromtheairfilterindicatesaleakingintake
valve.
Airleakingfromthecrankcaseindicatesleaking
compressionringsorheadgasket.
NOTE:Therewillalwaysbeairleakingforthecrankcase.
Ifthisisthegaugeshowsexcessiveleakageandtheonly
placeyouhearairescapingisfromthecrankcase,then
theexcessiveleakageispasttherings.
Whenanenginedisplayscompressionreadingthatare
notwithinthenormalspecs,thereareseveralar easto
inspect.