# Connecting rod small-end-to-pin clearance (Mazdaspeed)

Canonical URL: https://miatatorque.com/spec/connecting-rod-pin-clearance-msm/

Applicability: NB 2004–2005 (BP-Z3-TURBO) — 2004 factory turbo-engine evidence; 2005 inferred within MSM family.

Confidence: fsm

Standard clearance: 0.010–0.027 mm

Always confirm against your factory manual. Match every restriction and follow all stages and procedure notes. Disputed claims must not be automatically resolved. The complete record below preserves every printed unit, source claim and procedure.

```json
{
  "id": "connecting-rod-pin-clearance-msm",
  "name": "Connecting rod small-end-to-pin clearance (Mazdaspeed)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NB",
      "years": [
        2004,
        2005
      ],
      "engines": [
        "BP-Z3-TURBO"
      ],
      "note": "2004 factory turbo-engine evidence; 2005 inferred within MSM family."
    }
  ],
  "kind": "non-torque",
  "value_text": "Standard clearance: 0.010–0.027 mm",
  "procedure": {
    "notes": "Calculate small-end inner diameter minus piston-pin diameter. Printed lower inch endpoint is 0.004, inconsistent with 0.010 mm; preserve the source quotation and use metric."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "workshop-bp-turbo-2004",
      "page": "01–10–24 (PDF p. 36)",
      "as_printed": "Standard clearance\n0.010—0.027 mm {0.004—0.0010 in}",
      "verified_years": [
        2004,
        2004
      ],
      "document": {
        "id": "workshop-bp-turbo-2004",
        "tier": 1,
        "title": "2004 Mazda Engine Workshop Manual BP (1.8L), normally aspirated and turbo",
        "part_number": "9999-95-EWBP-04",
        "covers": [
          {
            "gen": "NB",
            "years": [
              2004,
              2004
            ],
            "engines": [
              "BP-Z3-TURBO"
            ],
            "trans": [
              "6MT"
            ]
          }
        ]
      }
    }
  ],
  "jobs": [],
  "system": "engine",
  "component": "inventory-pass-2026-10",
  "componentName": "Service measurements and fasteners",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/connecting-rod-pin-clearance-msm/"
}
```