Range Rover (LH) V8-3.5L (1987)
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Engine Oil Pressure: Testing and Inspection
Engine Oil Pressure Test
The following procedure applies to engines that have completed in excess of 1,000 miles and are filled with 15W/40 engine oil. The engine must be
installed in the vehicle.
CAUTION: If the vehicle has been running the engine oil will be hot, care must be taken when fitting the equipment to prevent the possibility of
personal injury due to scalding.
Special tools needed:
LST502-1 Adaptor pressure take off
18G502A, 0-300 psi Pressure gauge
18G502K Hose and adaptors
1. Place the vehicle on a suitable hoist.
2. Disconnect the battery negative terminal.
3. Remove the bolt from the oil pump housing and install adaptor LST502-1.
4. Fit pressure gauge 18G502A to hose 18G502K, fit the hose and gauge to adaptor LST502.1. Tighten all joints securely.
5. Connect the battery terminal and ensuring that the park brake is applied and that P or N is selected in the main gearbox start and run the engine.
Run the engine until normal engine operating temperature is achieved (thermostat open).
6. With the engine speed maintained at 2400 rpm there should be a minimum engine oil pressure of 1.76 kg/cm2 (25 psi).
