•Atthispoint,thetimingmarksonthecamshaftsprocketsmustbealmostalignedwiththecylinderheaduppersurfaceasshown.•Usingthethicknessgauge,measuringtheclear-ancebetweeneachcamlobeandrockerarm,forallfourvalves.○Recordthemeasuredvalvesclearance.A.TopMarkB.GroovesonAlternatorCoverC.CrankshaftD.CrankshaftRotationDirectionA.TimingMarksB.CamshaftSprocketsC.CylinderHeadUpperSurfacejNOTE100MAINTENANCEANDADJUSTMENT•BringthepistontotheTopDeadCenter(TDC)ofitscompressionstroketoinspectthevalveclear-ance(thepositionattheendofthecompressionstroke)byaligningthetopmarkwiththegroovesonthealternatorcoverwhileturningthecrankshaftcounterclockwise.
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