Valve head margin thickness (NA8)

Margin thickness IN: 0.035 in (0.9 mm) EX: 0.039 in (1.0 mm)Margin thickness IN: 0.9mm {0.035 in} EX: 1.0mm {0.039 in}

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

Procedure

Source gives these margin thicknesses without an explicit minimum label; inspect each valve and replace if necessary.

Applies to

Sources (1)

View 1 source citations

1994 Mazda MX-5 Miata Workshop ManualTier 1
Page B–48 (PDF p. 85) · Printed value & notes
Page B–48 (PDF p. 85)
Printed: “Margin thickness IN: 0.9mm {0.035 in} EX: 1.0mm {0.039 in}”