3516B Engine for 994F and 994H Wheel Loaders Oil Consumption Is Excessive Caterpillar


Oil Consumption Is Excessive
`
1.1. Probable Causes
2.1. Recommended Actions
3.2. Oil Leaks
4.2. Oil Level
5.2. Engine Oil Cooler
6.2. Turbocharger Seal
7.2. Internal Engine Wear

Probable Causes

  • Oil leaks

  • Oil level

  • Engine oil cooler

  • Turbocharger seal

  • Internal engine wear

Recommended Actions

Oil Leaks

Check the engine compartment for oil leaks. Repair any oil leaks that are identified.

Oil Level

Check the engine oil level. Too much oil in the engine crankcase can cause the engine to consume oil. Remove excessive engine oil from the crankcase.

Ensure that the dipstick is properly calibrated and/or that the dipstick is correct for the application. Calibrate the dipstick and/or replace the dipstick.

Engine Oil Cooler

Check for leaks in the engine oil cooler. Check for oil in the engine coolant. If necessary, repair the engine oil cooler.

Turbocharger Seal

Check for turbocharger shaft seal leakage. Remove the air inlet piping and the exhaust outlet piping from the turbocharger. Check the compressor wheel and the turbine for evidence of an oil leak. If necessary, repair the turbocharger or replace the turbocharger.

Internal Engine Wear

Internal engine wear or damage can cause excessive oil leakage into the combustion area of the cylinders. Inspect the following components for excessive wear or damage:

  • Faulty piston

  • Worn piston rings

  • Worn cylinder liners

  • Worn valve guides

  • Damaged cylinder head

  • Damaged injector tip

  • Oil leakage at the injector

Buildup of lacquer due to the wrong oil quality will leave white deposits on the underside of the valves and on the piston crown.

Information System:

C9.3 Engines for Caterpillar Built Machines Fuel Filter Base - Remove and Install
D5R Track-Type Tractor Steering Is Unstable
3516B Engine for 994F and 994H Wheel Loaders Exhaust Has Excessive White Smoke
C13, C15, and C18 Tier 4 Final Engines Fuel Injection Lines
2009/05/18 New Software for the AccuGrade Laser CD610 Display Is Now Available {7220, 7620}
966H Wheel Loader and 972H Wheel Loader Machine Systems Hood Tilt Actuator
C9 Engines for Caterpillar Built Machines Flywheel Housing - Remove and Install
C9 Engines for Caterpillar Built Machines Gear Group (Rear) - Remove and Install
980H Wheel Loader Power Train Transmission Planetary - Assemble - Heavy Duty
2009/05/11 New Machine Software is Now Used {7620}
AccuGrade</SUP> GPS / Single UTS / Site and Laser Reference v11 for Excavators Check Sensor Message
C9.3 Tier 4 Final Engines Diesel Particulate Filter Collects Excessive Soot
3516B Engine for 994F and 994H Wheel Loaders Oil Contains Coolant
D5R Track-Type Tractor Steering Turn Radius Is Large
2009/06/01 Correction to Systems Operation Testing and Adjusting , "Hydraulic Fan System" {1386, 1387, 5050}
2009/05/18 Improved Hardware is Now Available For the Retaining Ring on the Auger Drive for Certain Wheel Tractor-Scrapers {5904}
2009/05/11 New Software for the Engine Electronic Control Module (ECM) is Used {1901, 1902, 1920}
2010/07/02 Introduction of One Piece Piston Cylinder Packs for 3500 High Displacement Engines {1214, 1239, 1331}
C11, C13, C15, and C18 Industrial Engines Coolant Contains Fuel
C13, C15, and C18 Tier 4 Interim Engines Diesel Particulate Filter Temperature Is Low
C9.3 Engines for Caterpillar Built Machines Engine Vibration Is Excessive
C13, C15, and C18 Tier 4 Interim Engines Exhaust Has Black Smoke
2011/06/08 Managing Transmission Events {7610}
Oil Buildup on Remanufactured Cylinder Packs{1225}