Increased Engine Oil Temperature - Inspect
Look for a restriction in the oil passages of the oil cooler. The oil temperature may be higher than normal when the engine is operating. In such a case, the oil cooler may have a restriction. High oil temperature can be a cause of low oil pressure.
Determine if the oil cooler bypass valve is held in the open position. This condition will allow the oil to pass through the valve instead of the oil cooler. The oil temperature will increase.
Caterpillar Information System:
C3.3 Industrial Engine Excessive Engine Oil Consumption - Inspect
C3.3 Industrial Engine Excessive Bearing Wear - Inspect
C1.7, C1.8, and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines Engine Oil Pump - Inspect
C3.3 Industrial Engine Engine Oil Pressure - Test
C3.3 Industrial Engine Valve Guide - Inspect
C3.3 Industrial Engine V-Belt - Test
C3.3 Industrial Engine Glow Plugs - Test
C3.3 Industrial Engine Electric Starting System - Test
C3.3 Industrial Engine Alternator - Test
C27 and C32 Generator Set Engines Vibration Damper and Pulley
2007/08/13 New Engine Vision Software Is Now Available {7490, 7620}
345D, 349D and 349D2 Excavators Fuel System - Prime
C3.3 Industrial Engine Cooling System - Check - Overheating
C3.3 Industrial Engine Cooling System - Inspect
C3.3 Industrial Engine Cooling System - Test
C3.3 Industrial Engine Connecting Rod - Inspect
C3.3 Industrial Engine Piston Height - Inspect
C6.6 Engines for Caterpillar Built Machines Electronic Unit Injector - Remove
C3.3 Industrial Engine Cylinder Head
345D, 349D and 349D2 Excavators Fuel System Secondary Filter - Replace
345D, 349D and 349D2 Excavators Fuel System Primary Filter (Water Separator) Element - Replace
2010/05/06 Valve Bridges are Included with Cylinder Heads {1102, 1123}
2010/08/23 Valve Bridges are Included with Cylinder Heads {1102, 1123}
2009/09/01 Valve Bridges are Included with Cylinder Heads {1102, 1123}