# Fuel tank insulator mounting nuts (NB1)

Canonical URL: https://miatatorque.com/spec/fuel-tank-insulator-nuts-nb1/

Applicability: NB 1999–2000 (BP-4W) — 2000 applicability inferred from 1999 factory evidence within the owner-approved NB1 year group.

Confidence: fsm

79–112 in·lb / 8.9–12.7 N·m

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": "fuel-tank-insulator-nuts-nb1",
  "name": "Fuel tank insulator mounting nuts (NB1)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NB",
      "years": [
        1999,
        2000
      ],
      "engines": [
        "BP-4W"
      ],
      "note": "2000 applicability inferred from 1999 factory evidence within the owner-approved NB1 year group."
    }
  ],
  "kind": "torque",
  "torque": {
    "nm": [
      8.9,
      12.7
    ],
    "kgfcm": [
      90,
      130
    ],
    "inlb": [
      79,
      112
    ]
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-1999",
      "page": "01–14–3",
      "as_printed": "8.9—12.7 N·m {90—130 kgf·cm, 79—112 in·lbf}",
      "verified_years": [
        1999,
        1999
      ],
      "torque": {
        "nm": [
          8.9,
          12.7
        ],
        "kgfcm": [
          90,
          130
        ],
        "inlb": [
          79,
          112
        ]
      },
      "document": {
        "id": "fsm-1999",
        "tier": 1,
        "title": "1999 Mazda MX-5 Miata Workshop Manual",
        "covers": [
          {
            "gen": "NB",
            "years": [
              1999,
              2000
            ],
            "engines": [
              "BP-4W"
            ]
          }
        ],
        "url": "https://www.mellens.net/mazda/Mazda-Miata-1999-2001.pdf"
      }
    }
  ],
  "jobs": [],
  "system": "fuel-intake",
  "component": "reaudit-1999",
  "componentName": "Additional factory specifications",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/fuel-tank-insulator-nuts-nb1/"
}
```