Updated specs are available.
Connecting rod bearing oil clearance (NA8)
This spec doesn't apply to the car you selected.
Not yet checked against the factory manual for your car's year. It's verified in the 1994 Mazda MX-5 Miata Workshop Manual; later manuals may differ.
Oil clearance: 0.0008—0.0017 in (0.020—0.044 mm) Maximum: 0.004 in (0.10 mm)Oil clearance: 0.020—0.044mm {0.0008—0.0017 in} Maximum: 0.10mm {0.004 in}
Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure
Align rod/cap matching marks. Inspect using main-bearing Plastigage procedure with rod fasteners torqued to 48–50 N·m. Grind crankshaft and use undersize bearings if excessive.
Applies to
- NA 1994–1997 (BP) — Other years inferred from 1994 factory evidence.
- Verified in: 1994 Mazda MX-5 Miata Workshop Manual
Sources (1)
View 1 source citations
- 1994 Mazda MX-5 Miata Workshop ManualTier 1
Page B–64 (PDF p. 101) · Printed value & notes
Page B–64 (PDF p. 101)Printed: “Oil clearance: 0.020—0.044mm {0.0008—0.0017 in} Maximum: 0.10mm {0.004 in}”
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