Oil Contains Coolant
Emulsion is a mixture of oil and water. The water occurs when condensation forms in the engine during certain operating and seasonal conditions. The emulsion may appear light in color. Emulsion may be found in the following areas:
- Engine oil filler
- Engine oil level gauge
- Valve cover
- Crankcase ventilation system
The emulsion should disappear with increased engine operating temperatures at higher load conditions.
- Engine oil cooler core
- Water pump
- Cylinder head gasket
- Cylinder liner
- Cylinder head
- Check for leaks in the oil cooler core. If a leak is found, install a new oil cooler core. Refer to the Disassembly and Assembly manual.
- Drain the crankcase and refill the crankcase with clean engine oil. Install new engine oil filters. Refer to the Operation and Maintenance Manual.
Perform a pressure test of the cooling system. Refer to Testing and Adjusting, "Cooling System - Test".
- Remove the cylinder head. Refer to the Disassembly and Assembly manual.
- Check the cylinder liner projection. Refer to the Systems Operation/Testing and Adjusting manual.
- Install a new cylinder head gasket and new water seals in the spacer plate. Refer to the Disassembly and Assembly manual.
Check for cracked cylinder liners. Replace any cracked cylinder liners. Refer to the Disassembly and Assembly manual.
Check for cracks in the cylinder head. If a crack is found, repair the cylinder head and/or replace the cylinder head. Refer to the Disassembly and Assembly manual.
Caterpillar Information System:
2006/12/25 New Software is Used {1902, 7620}
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Caterpillar Logic Control Governor One (LCG1) and Caterpillar Logic Control Governor Two (LCG2){1251, 1264, 1908, 7620} Caterpillar Logic Control Governor One (LCG1) and Caterpillar Logic Control Governor Two (LCG2){1251, 1264, 1908, 7620}
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