SEAL (13.5cm) 1030560 - Caterpillar

Several factors are important in deciding when to perform an overhaul. The following factors are included:* The conscientiousness of the performance of preventive maintenance* The oil consumption to fuel consumption ratio* Fuel consumption* The quality of fuel that has been consumed* The mileage of the vehicle* The conditions that the vehicle has operated in* S O S oil analysis results* The loss of engine powerAn overhaul is a planned maintenance interval at which the engine is inspected and worn components are replaced with rebuilt parts or new parts.A top end overhaul is generally indicated by increased fuel consumption and reduced power. This interval consists of completely reconditioning the cylinder head. The cylinder components are usually not worn enough to need repair.A major overhaul is the interval at which the major wear items in the engine should be replaced. The major wear items include piston rings, engine rod and main bearings, valves, etc.Consult your Caterpillar dealer for more information on overhaul intervals and options.