Updated specs are available.
Camshaft journal diameter and out-of-round (NA6)
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Not yet checked against the factory manual for your car's year. It's verified in the 1990 Mazda MX-5 Miata Workshop Manual; later manuals may differ.
Diameter: 1.0213–1.0222 in (25.940–25.965 mm) Out-of-round: 0.002 in (0.05 mm) max.Diameter: 25.940–25.965 mm (1.0213–1.0222 in) Out-of-round: 0.05 mm (0.002 in) max.
Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure
Measure each journal in the X and Y directions at two axial positions.
Applies to
- NA 1990–1993 (B6) — Other years inferred from 1990 factory evidence.
- Verified in: 1990 Mazda MX-5 Miata Workshop Manual
Sources (1)
View 1 source citations
Page B–53 (PDF p. 80) · Printed value & notes
Part no. 1193-10-89CPage B–53 (PDF p. 80)Printed: “Diameter: 25.940—25.965mm (1.0213—1.0222 in) Out-of-round: 0.05mm (0.002 in) max.”
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