{
  "factory_source": "https://www.spridgets.de/downloads/Parts-1977.pdf#page=92",
  "factory_read": "GAN6-154101on continuation:37H7148M tank-to-intermediate-hose pipe81.5in/207.07cm,ACA5129 nipple andACA5128 nut. Earlier twin-carb/pump branches not transferred to this owner modification.",
  "supplier_source": "https://www.mgocspares.co.uk/parts/mg/midget/fuel/fuel-pumps-fuel-lines/1500cc",
  "supplier_size_source": "https://www.mgocspares.co.uk/product/aca5128/nut-tube-brass-1-4-fuel-pipe-union-to-fuel-tank",
  "supplier_fact": "ACA5128 specified for1/4in fuel pipe;ACA5129 listed1/4in olive.6.35mm tube OD is a matched replacement-interface comparison,not measured fitted pipe.",
  "supplier_nominal_pipe_od_mm": 6.35,
  "estimated_pipe_bore_mm": 4.35,
  "estimated_bend_radius_mm": 20.0,
  "factory_pipe_length_recorded_not_applied_mm": 2070.7,
  "source_pipe_centerline_length_mm": 1856.4364553517323,
  "retained_legacy_corner_stations_mm": [
    [
      186.26666666666668,
      296.3333333333333,
      -1253.0666666666668
    ],
    [
      321.73333333333335,
      270.93333333333334,
      -1202.2666666666667
    ],
    [
      389.4666666666667,
      245.53333333333333,
      -1058.3333333333335
    ],
    [
      372.53333333333336,
      237.06666666666672,
      -677.3333333333335
    ],
    [
      372.53333333333336,
      237.06666666666672,
      84.66666666666669
    ],
    [
      372.53333333333336,
      321.73333333333335,
      423.33333333333337
    ]
  ],
  "estimated_pipe_start_mm": [
    186.26666666666668,
    296.3333333333333,
    -1313.5166666666669
  ],
  "retained_front_open_boundary_mm": [
    372.53333333333336,
    321.73333333333335,
    423.33333333333337
  ],
  "estimated_tank_wall_axis_mm": [
    186.26666666666668,
    296.3333333333333,
    -1317.5166666666669
  ],
  "old_floating_outlet_corner_mm": [
    186.26666666666668,
    296.3333333333333,
    -1253.0666666666668
  ],
  "source_wall_to_old_corner_station_difference_mm": 64.45000000000005,
  "estimated_tank_receiver": {
    "outer_radius_mm": 8,
    "bore_radius_mm": 3.4,
    "z_offsets_mm": [
      -2,
      16
    ],
    "tank_opening_radius_mm": 8.1
  },
  "estimated_union_nut": {
    "hex_across_corners_mm": 19,
    "z_offsets_mm": [
      10,
      26
    ],
    "stepped_unthreaded_bores_mm": [
      8.2,
      4.7,
      3.4
    ]
  },
  "estimated_uncompressed_olive": {
    "z_offsets_mm": [
      17,
      22
    ],
    "max_outer_radius_mm": 4.5,
    "bore_radius_mm": 3.25
  },
  "arc_stations": [
    {
      "incoming_tangent_mm": [
        186.26666666666668,
        296.3333333333333,
        -1267.010369167592
      ],
      "outgoing_tangent_mm": [
        199.1258930808297,
        293.9222283806777,
        -1248.2444567613557
      ]
    },
    {
      "incoming_tangent_mm": [
        314.3539602917119,
        272.3169657786373,
        -1205.0339315572746
      ],
      "outgoing_tangent_mm": [
        325.0978170611338,
        269.6716519354082,
        -1195.1171387450906
      ]
    },
    {
      "incoming_tangent_mm": [
        387.31613799127746,
        246.3397815866043,
        -1062.9032067685355
      ],
      "outgoing_tangent_mm": [
        389.2396323467306,
        245.4198161733653,
        -1053.225061134771
      ]
    },
    {
      "incoming_tangent_mm": [
        372.55537714185493,
        237.0776885709275,
        -677.8293190250689
      ],
      "outgoing_tangent_mm": [
        372.53333333333336,
        237.06666666666672,
        -676.8367356910979
      ]
    },
    {
      "incoming_tangent_mm": [
        372.53333333333336,
        237.06666666666672,
        82.20455415431347
      ],
      "outgoing_tangent_mm": [
        372.53333333333336,
        237.6638166637601,
        87.05526665504013
      ]
    }
  ],
  "owner_photos_reviewed": [
    "IMG_6898",
    "IMG_6917"
  ],
  "owner_photo_scope": "6898 confirms local electric-pump/fitting/FLOW-device/hose context without a full remote trace.6917 is front-underbody/suspension context,not a rear tank pickup survey. No fitted tank outlet or complete tank-to-pump route identified.",
  "basis": "Replace floating solid outlet cue/solid viewer feed with a hollow native main-pipe comparison and distinct receiver/nut/olive roles. Receiver uses inherited X/Y route station projected to the estimated tank front wall;this creates a declared source interface,not an observed port. Existing main corner stations/front endpoint and tank/body/pump frames stay.",
  "limits": "Tank outlet X/Y,front-wall interpretation,receiver retention,wall opening,union threads/seats/hex/lengths,olive shape/compression,pipe bore,bends/material,brackets/clips and source registration are estimates. The receiver is a separate recognition part;no actual weld/braze/press-fit or pickup tube/strainer inside the tank is established.6.35mm OD is a supplier-interface comparison,not identification of the fitted line. Native tangent arcs supersede the browser spline butretain its corner drawing stations. Factory2070.7mm length is recorded,not forced into the route or supplied as a cutting template. Source gaps/overlaps and continuity are reference construction,not sealed fuel fit,loaded/hot clearance,pressure/delivery direction or service readiness. The observed electric pump/device/mount and both untraced hose destinations remain unchanged;no tank-feed-to-pump or pump-to-carburetor join,mechanical-pump presence/deletion/bypass or ELC vapor reassignment is invented. No fuel compatibility,support strength,safe drain/disconnection/replacement procedure,torque or verified removal path. Inspection translations are illustrative.",
  "owner_measurements_applied": false,
  "factory_pipe_length_as_printed_in_cm": [
    81.5,
    207.07
  ],
  "factory_length_unit_limit": "Printed metric pair gives2070.7mm;81.5in converts2070.1mm. Both documentary values retained;neither forces the reference curve."
}