Oil Pump Pressure Test (Oil Pump Relief Pressure)

OIL PUMP PRESSURE TEST (OIL PUMP RELIEF PRESSURE)
1. Disconnect the pressure tube from the power steering pump and then install the special tools between the pump and the pressure tube as illustration below.





2. Start the engine and turn the steering wheel several times so that the fluid temperature can rise to approx. 50 - 60°C (122°F).
3. Set the engine speed to approx. 1000 RPM.
4. Close the shut-off valve of the special tools and measure the fluid pressure.

Standard value
Relief pressure: 90kg/cm2 (1280psi, 8.8Mpa)

CAUTION: Do not keep the shut-off valve on the pressure gauge closed for longer than 10 seconds.

5. Remove the special tools, and than connect the pressure tube to the pump by tightening the eye bolt.
6. Bleed the power steering system.