ENGINE HAS EARLY WEAR

LITTLE MOVEMENT OF ROCKER ARM AND TOO MUCH VALVE CLEARANCE

TM-5-3805-260-24 Scraper Tractor: Elevating Self-Propelled 11 Cubic Yard Sectionalized and Nonsectionalized Manual
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TM 5-3805-260-2417 17. ENGINE HAS EARLY WEAR Cause Correction Dirt in Lubrication Oil Remove dirty lubrication oil. Install a new oil filter element. Put clean oil in the engine. Air Inlet Leaks Inspect all gaskets and connections. Make repairs if leaks are found. Fuel Leakage Into This will cause high fuel consumption and low engine oil pressure. Lubrication Oil Make repairs if leaks are found. Install new parts where needed. 18. COOLANT IN LUBRICATION OIL Cause Correction Failure of Oil Cooler Core Install a new core for the oil cooler. Failure of Cylinder Head Install a new cylinder head gasket. Tighten the bolts holding the Gasket cylinder head, according to the Specifications. Crack or Defect in Cylinder Install a new cylinder head. Head Crack or Defect in Cylinder Install a new cylinder block. Block Failure of Front Cover Install a new front cover gasket. Gasket 19. TOO MUCH BLACK OR GRAY SMOKE Cause Correction Not Enough Air For Check air cleaner for restrictions. [Max. 25 in. (635 mm) of Combustion water]. Bad Fuel Injection Nozzle(s) Install new fuel injection nozzle(s). Wrong Fuel Injection Timing Make adjustment to timing. 20. TOO MUCH WHITE OR BLUE SMOKE Cause Correction Too Much Lubrication Oil in Remove extra oil. Find where extra oil comes from. Put correct Engine amount of oil in engine. Do not put too much oil in engine. Misfiring or Running Rough Make reference to ITEM 2. Wrong Fuel Injection Timing Make adjustment to timing. Worn Valve Guides Reconditioning of cylinder head is needed. Worn Piston Rings Install new parts as necessary. Defect in Timing Advance Replacement of timing advance unit is needed. Unit 2-30

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