BASE 9F1964 - Caterpillar

Introduction
One of the problems in the list that follows will generally be an indication of a problem in the lubrication system for the engine. TOO MUCH OIL CONSUMPTIONOIL PRESSURE IS LOWOIL PRESSURE IS HIGHTOO MUCH BEARING WEARINCREASED OIL TEMPERATUREMeasuring Engine Oil Pressure
5P6225 Hydraulic Test Box.9S9102 Thermistor Thermometer Group.An oil pressure gauge that has a defect can give an indication of low oil pressure.An 8M2744 Oil Pressure Gauge which is part of the 5P6225 Hydraulic Test Box can be used to check oil pressure in the system.
5P6225 HYDRAULIC TEST BOXThis procedure must be followed exactly for the pressure readings to have any value. Before any oil pressure test is made, install a new Caterpillar filter to be sure the filter does not cause a reduction in oil pressure.1. Be sure that the engine is filled to the correct level with SAE 30 oil. If any other viscosity of oil is used, the information does not apply.2. Find pressure test location (1) on the oil manifold to install a tee. Install a probe from the 9S9102 Thermistor Thermometer Group in one side of the tee. Connect a 8M2744 Gauge from the 5P6225 Hydraulic Test Box to the other side of the tee.
OIL MANIFOLD
1. Pressure test location.3. Run the engine to get the oil temperature at 93 6° C (200 10° F).4. Keep the oil temperature constant with the engine at high idle and read the pressure gauge.5. An oil pressure reading of 415 to 550 kPa (60 to 80 psi) is normal at high idle. Do not continue engine operation if oil pressure reading is less than 105 kPa (15 psi).If the results do not fall within the pressure range given, find the cause and correct it. Engine failure or a reduction in engine life can be the result if engine operation is continued with oil manifold pressure outside this range.Too Much Oil Consumption
Oil Leakage on Outside of Engine
Check for leakage at the seals at each end of the crankshaft. Look for leakage at the oil pan gasket and all lubrication system connections. Check to see if oil comes out of the crankcase breather. This can be caused by combustion gas leakage around the pistons. A dirty crankcase breather will cause high pressure in the crankcase, and this will cause gasket and seal leakage.Oil Leakage Into Combustion Area of Cylinders
Oil leakage into the combustion area of the cylinders can be the cause of blue smoke. There are three possible ways for oil leakage into the combustion area of the cylinders: 1. Oil leakage between worn valve guides and valve stems. 2. Worn or damaged piston rings, or dirty oil return holes.3. Compression ring not installed correctly.Too much oil consumption can also be the result if oil with the wrong viscosity is used. Oil with a thin viscosity can be caused by fuel leakage into the crankcase, or by increased engine temperature.Oil Pressure Is Low
Crankcase Oil Level
Check the level of the oil in the crankcase. Add oil if