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Thermostat main valve initial opening temperature (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.
188–193 °F (86.5–89.5 °C)86.5–89.5°C {188–193°F}
Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure
Factory two-stage thermostat with separate main and sub valves. Visually check valve is airtight, then place thermostat and thermometer in water and heat the water. Do not apply these two-stage specifications to an aftermarket single-stage thermostat.
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 E–8 (PDF p. 138) · Printed value & notes
Part no. 1193-10-89CPage E–8 (PDF p. 138)Printed: “Initial-opening temperature Main: 86.5—89.5°C (188—193°F)”
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