Piston ring-to-land clearance (Mazdaspeed)

Standard clearance Top : 0.0012—0.0025 in (0.030—0.065 mm) Second : 0.0012—0.0027 in (0.030—0.070 mm) Oil : 0.003—0.006 in (0.07—0.16 mm) Maximum clearance Top, Second : 0.006 in (0.15 mm) Oil : 0.008 in (0.20 mm)Standard clearance Top : 0.030—0.065 mm {0.0012—0.0025 in} Second : 0.030—0.070 mm {0.0012—0.0027 in} Oil : 0.07—0.16 mm {0.003—0.006 in} Maximum clearance Top, Second : 0.15 mm {0.006 in} Oil : 0.20 mm {0.008 in}

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

Procedure

Measure around the entire circumference. Replace piston and rings as necessary.

Applies to

NB 2004–2005 (BP-Z3-TURBO) — 2004 factory turbo-engine evidence; 2005 inferred within MSM family.
Verified in: 2004 Mazda Engine Workshop Manual BP (1.8L), normally aspirated and turbo

Sources (1)

View 1 source citations

2004 Mazda Engine Workshop Manual BP (1.8L), normally aspirated and turboTier 1
Page 01–10–23 (PDF p. 35) · Printed value & notes
Part no. 9999-95-EWBP-04
Page 01–10–23 (PDF p. 35)
Printed: “Standard clearance Top : 0.030—0.065 mm {0.0012—0.0025 in} Second : 0.030—0.070 mm {0.0012—0.0027 in} Oil : 0.07—0.16 mm {0.003—0.006 in} Maximum clearance Top, Second : 0.15 mm {0.006 in} Oil : 0.20 mm {0.008 in}”

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