Gear Fluid Pressure Test

Ensure pump pressure is within specification. To measure steering gear fluid pressure, open gauge/valve completely.
Increase engine speed to 1000-1500 RPM. Turn steering wheel from lock-to-lock. See HYDRAULIC SYSTEM FLUID PRESSURE SPECIFICATIONS . If steering gear fluid pressure is less than specification, steering gear is defective.

HYDRAULIC SYSTEM FLUID PRESSURE SPECIFICATIONS⁽¹⁾

Application

Pressure psi (kg/cm² )

RX7

1138-1209 (80-85)

⁽¹⁾	Measured at 1000-1500 RPM. DO NOT leave valve closed for more than 15 seconds.

Fig 1: Connecting Pressure Gauge (All Except 4-Wheel Steering)

Courtesy of MAZDA MOTORS CORP.