Every 2000 Service Hours or 1 Year9. Observe the coolant level. Maintainthe coolant level to within 1 cm (1/2 inch)of the bottom of the fill pipe.10. Stop the engine. Add more coolantif necessary.11. Inspect the radiator cap gasket.Replace it, if it is damaged. Install theradiator cap.TM 5-3805-258-24-1ENGINE VALVE LASHMeasure the Valve Lash (Clearance)WARNINGTo prevent possible injury, do not use thestarter motor to turn the flywheel.CAUTIONWith the engine stopped and cold, measure thevalve clearance. Always turn the flywheel in thedirection of normal rotation.Valve Clearance CheckWhen the valve clearance is checked,adjustment is not necessary if themeasurement is in the range given in the“Valve Clearance Check” chart.Valve Clearance CheckIntake . . . . . . . . . . . . .0.30 to 0.46 mm (.012 to .018 in.)Exhaust . . . . . . . . . .0.56 to 0.72 mm (.022 to .028 in.)Valve Clearance SettingIf the measurement is outside the rangegiven for valve clearance check, adjustmentis necessary. Set the clearance to thenominal clearance given in the “ValveClearance Setting” chart. Refer toSection 4 of this manual.Valve Clearance SettingIntake . . . . . . . . . . . . .0.38 mm (.015 in.)Exhaust . . . . . . . . . .0.64 mm (.025 in.)1-83/1-84 (blank)
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