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Transmission oil pump outer gear-to-crescent clearance (SB4A-EL 4AT)

Standard: ≈0.00433–0.00551 in (0.11–0.14 mm); maximum: ≈0.01181 in (0.3 mm)Standard: 0.11–0.14 mm; maximum: 0.3 mm

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

Procedure step 3 explicitly measures outer gear-to-crescent clearance. Technical table labels corresponding identical metric row Inner gear and outer gear. Use the procedure measuring point. Replace pump if outside specification. Table rounds maximum inches to 0.01; metric agrees. the procedure measuring point, outer gear-to-crescent, controls over the conflicting technical-table label. Metric values control.

Applies to
  • NB 2001–2005 (BP-Z3, 4AT) — 2003–2005 factory references identify this component manual; 2001–2002 inferred within NB2 non-turbo family.
  • Verified in: Mazda SB4A-EL Automatic Transmission Workshop Manual

Sources (2)

View 2 source citations
  • Mazda SB4A-EL Automatic Transmission Workshop ManualTier 1
    Page 05–13Y–10 (PDF p. 22) · Printed value & notes
    Part no. 9999-95-422H-99
    Page 05–13Y–10 (PDF p. 22)
    Printed: “Clearance Standard: 0.11—0.14 mm {0.0044—0.0055 in} Maximum: 0.3 mm {0.0118 in}”
  • Mazda SB4A-EL Automatic Transmission Workshop ManualTier 1
    Page 05–50–1 (PDF p. 87) · Printed value & notes
    Part no. 9999-95-422H-99
    Page 05–50–1 (PDF p. 87)
    Printed: “Oil pump Inner gear and outer gear (mm {in}) Standard 0.11—0.14 {0.0044—0.0055} Maximum 0.3 {0.01}”

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