Piston ring end gap (Mazdaspeed)

Standard end gap Top : 0.006—0.011 in (0.15—0.30 mm) Second : 0.012—0.017 in (0.30—0.45 mm) Oil rail : 0.008—0.027 in (0.20—0.70 mm) Maximum end gap 0.039 in (1.0 mm)Standard end gap Top : 0.15—0.30 mm {0.006—0.011 in} Second : 0.30—0.45 mm {0.012—0.017 in} Oil rail : 0.20—0.70 mm {0.008—0.027 in} Maximum end gap 1.0 mm {0.039 in}

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

Procedure

Use a piston to push each ring squarely to the bottom of ring travel, then measure with a feeler gauge.

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 end gap Top : 0.15—0.30 mm {0.006—0.011 in} Second : 0.30—0.45 mm {0.012—0.017 in} Oil rail : 0.20—0.70 mm {0.008—0.027 in} Maximum end gap 1.0 mm {0.039 in}”

Related service specs

Browse all engine specs