# Camshaft journal oil clearance (NA8)

Canonical URL: https://miatatorque.com/spec/camshaft-journal-oil-clearance-na8/

Applicability: NA 1994–1997 (BP) — Other years inferred from 1994 factory evidence.

Confidence: fsm

Oil clearance:0.035—0.081mm {0.0014—0.0031 in}
Maximum: 0.15mm {0.006 in}

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": "camshaft-journal-oil-clearance-na8",
  "name": "Camshaft journal oil clearance (NA8)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NA",
      "years": [
        1994,
        1997
      ],
      "engines": [
        "BP"
      ],
      "note": "Other years inferred from 1994 factory evidence."
    }
  ],
  "kind": "non-torque",
  "value_text": "Oil clearance:0.035—0.081mm {0.0014—0.0031 in}\nMaximum: 0.15mm {0.006 in}",
  "procedure": {
    "notes": "Procedure starts B–52/PDF89: remove HLAs, clean oil/debris from journals and bearing surfaces, place Plastigage axially, fit caps by numbers/arrows and tighten in factory order and stages to 11.3–14.2 N·m. Remove caps and read Plastigage. Replace head if excessive."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-1994",
      "page": "B–53 (PDF p. 90)",
      "as_printed": "Oil clearance:0.035—0.081mm {0.0014—0.0031 in}\nMaximum: 0.15mm {0.006 in}",
      "verified_years": [
        1994,
        1994
      ],
      "document": {
        "id": "fsm-1994",
        "tier": 1,
        "title": "1994 Mazda MX-5 Miata Workshop Manual",
        "covers": [
          {
            "gen": "NA",
            "years": [
              1994,
              1997
            ],
            "engines": [
              "BP"
            ]
          }
        ],
        "note": "Mazda's base manual for 1994–97; later model years got supplements, which we haven't checked yet."
      }
    }
  ],
  "jobs": [],
  "system": "engine",
  "component": "inventory-pass-2026-10",
  "componentName": "Service measurements and fasteners",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/camshaft-journal-oil-clearance-na8/"
}
```