Showing specs for all NA & NB Miatas

Power steering gear housing test pressure (2004–2005 NB2 and Mazdaspeed)

314 psi (8.33–9.06 MPa; 85.0–92.3 kgf/cm², 1,209–1)8.33–9.06 MPa {85.0–92.3 kgf/cm², 1,209–1,314 psi}

Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

Connect factory pressure-gauge SSTs and bleed air; warm fluid to 50—60°C {122—140°F}. Open the gauge valve fully; at 1,000—1,500 rpm turn fully left and right and measure pressure. Do not hold the steering fully turned for more than 5 seconds; excessive fluid heat damages the pump. Repair or replace the gear housing if out of specification; follow the complete factory gauge removal and bleeding procedure.

Applies to
  • NB 2004–2005 (BP-Z3) — Actual2004 and2005 factory evidence.
  • NB 2004–2005 (BP-Z3-TURBO) — 2005 factory evidence; 2004 inferred within MSM family.
  • Verified in: 2004 Mazda MX-5 Miata Workshop Manual (electronic manual capture); 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)

Sources (2)

View 2 source citations
  • 2004 Mazda MX-5 Miata Workshop Manual (electronic manual capture)Tier 1
    Page Steering Fluid Pressure Inspection (PDF pp. 1528–1529) · Printed value & notes
    Page Steering Fluid Pressure Inspection (PDF pp. 1528–1529)
    Printed: “Gear housing fluid pressure 8.33—9.06 MPa {85.0—92.3 kgf/cm², 1,209—1,314 psi}”
  • 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)Tier 1
    Page Steering Fluid Pressure Inspection (PDF pp. 1662–1663) · Printed value & notes
    Page Steering Fluid Pressure Inspection (PDF pp. 1662–1663)
    Printed: “Gear housing fluid pressure 8.33—9.06 MPa {85.0—92.3 kgf/cm², 1,209—1,314 psi}”

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