{
  "baseline_commit": "8bedeb51",
  "source_groups": 16,
  "positive_valid_step_solids": 25,
  "main_bearing_subset_groups": 12,
  "main_bearing_subset_solids": 21,
  "scope": "Cap/fastener/shell interfaces within extended source;rod shanks validated separately by validate_conrod_shanks.py.",
  "factory_nominal_diametral_clearance_range_mm": [
    0.013,
    0.05
  ],
  "selected_reference_diametral_clearance_mm": 0.0315,
  "station_checks": {
    "rear": {
      "two_open_cap_passages_and_reference_interfaces": [
        {
          "cap_bore_open": true,
          "nominal_bolt_diameter_length_mm": [
            11.112499999999999,
            76.19999999999999
          ],
          "cap_washer_and_head_reference_faces_meet": true,
          "bolt_vs_retained_block_overlap_mm3": 1490.4327390624123,
          "bolt_tip_center_in_retained_block": false,
          "receiver_status": "Unverified upper receiving material/axis;no thread,blind depth or new block hole assigned."
        },
        {
          "cap_bore_open": true,
          "nominal_bolt_diameter_length_mm": [
            11.112499999999999,
            76.19999999999999
          ],
          "cap_washer_and_head_reference_faces_meet": true,
          "bolt_vs_retained_block_overlap_mm3": 1490.4327390624119,
          "bolt_tip_center_in_retained_block": false,
          "receiver_status": "Unverified upper receiving material/axis;no thread,blind depth or new block hole assigned."
        }
      ],
      "shells": {
        "upper": {
          "native_journal_radial_distance_mm": 0.015749999999997308,
          "native_axial_length_mm": 21.529999999999973
        },
        "lower": {
          "native_journal_radial_distance_mm": 0.015749999999994446,
          "native_axial_length_mm": 21.529999999999973
        }
      },
      "cap_vs_crank_overlap_mm3": 0.0
    },
    "center": {
      "two_open_cap_passages_and_reference_interfaces": [
        {
          "cap_bore_open": true,
          "nominal_bolt_diameter_length_mm": [
            11.112499999999999,
            76.19999999999999
          ],
          "cap_washer_and_head_reference_faces_meet": true,
          "bolt_vs_retained_block_overlap_mm3": 1490.4327390624026,
          "bolt_tip_center_in_retained_block": false,
          "receiver_status": "Unverified upper receiving material/axis;no thread,blind depth or new block hole assigned."
        },
        {
          "cap_bore_open": true,
          "nominal_bolt_diameter_length_mm": [
            11.112499999999999,
            76.19999999999999
          ],
          "cap_washer_and_head_reference_faces_meet": true,
          "bolt_vs_retained_block_overlap_mm3": 1490.4327390624014,
          "bolt_tip_center_in_retained_block": false,
          "receiver_status": "Unverified upper receiving material/axis;no thread,blind depth or new block hole assigned."
        }
      ],
      "shells": {
        "upper": {
          "native_journal_radial_distance_mm": 0.015749999999998553,
          "native_axial_length_mm": 21.53
        },
        "lower": {
          "native_journal_radial_distance_mm": 0.015749999999997242,
          "native_axial_length_mm": 21.53
        }
      },
      "cap_vs_crank_overlap_mm3": 0.0
    },
    "front": {
      "two_open_cap_passages_and_reference_interfaces": [
        {
          "cap_bore_open": true,
          "nominal_bolt_diameter_length_mm": [
            11.112499999999999,
            76.19999999999999
          ],
          "cap_washer_and_head_reference_faces_meet": true,
          "bolt_vs_retained_block_overlap_mm3": 1490.4327390624123,
          "bolt_tip_center_in_retained_block": false,
          "receiver_status": "Unverified upper receiving material/axis;no thread,blind depth or new block hole assigned."
        },
        {
          "cap_bore_open": true,
          "nominal_bolt_diameter_length_mm": [
            11.112499999999999,
            76.19999999999999
          ],
          "cap_washer_and_head_reference_faces_meet": true,
          "bolt_vs_retained_block_overlap_mm3": 1490.4327390624119,
          "bolt_tip_center_in_retained_block": false,
          "receiver_status": "Unverified upper receiving material/axis;no thread,blind depth or new block hole assigned."
        }
      ],
      "shells": {
        "upper": {
          "native_journal_radial_distance_mm": 0.015749999999997308,
          "native_axial_length_mm": 21.529999999999973
        },
        "lower": {
          "native_journal_radial_distance_mm": 0.015749999999994446,
          "native_axial_length_mm": 21.529999999999973
        }
      },
      "cap_vs_crank_overlap_mm3": 0.0
    }
  },
  "unchanged_native_source_sha256": {
    "midget-1500-measured-core.json": "47059768d4dc759afc01c77e127b13a13c3727913f1564fa9d12c3bdaeaf5bd9",
    "midget-1500-measured-core.step": "8d3a2eef6419982a7444e60a1f0e72e1a487938bd89c833b3daaa39d62b4a7a9",
    "rocker-support-reference.json": "32d6db703114ff21bf4607ecfe52382482a470d57a8735936e6f3a61be7f8a4c",
    "rocker-support-reference.step": "f16283ba19c5d4e47b8623d252ab2dffcec0beadfc50ad22d6ab4490ac5bae14",
    "sump-reference.json": "995508545de8916a090b1156013630e0d1bffd83e53820880f9cf550725c858d",
    "sump-reference.step": "93a3fedef4b15676c64348a8f8ad63d8b7a2fdc88b1a5d090a70a2ffc7a5bcc7",
    "rear-engine-plate-reference.json": "859f33538cf65073c8468b40fdaf16aa0c5b86bdd460c20952e11cd792125ca7",
    "rear-engine-plate-reference.step": "0a0d38dcf7b7a812b4857f60f00a9e15c144226ba7d59365a306978e774ee85e",
    "clutch-pack-reference.json": "fc2a8f546e8736b6a3b35535746ef48781bc8d6e8c6af2b4d366fb8fc930fca2",
    "clutch-pack-reference.step": "e6abec3ae244af24a709c67effd2bb8cabd95d18963fd2a3dc29cbca6b174869"
  },
  "limits": "Factory journal and bearing-length ranges retained;0.013..0.050mm diametral running-clearance range represented by midpoint0.0315mm,not fitted clearance,bearing grade,crush or oil-film behavior. Shell outer radius retains the old unmeasured1.8mm seat allowance. Three cap/journal stations and six bolt axes remain unmeasured source datums. Cap pads,bore allowance,upper ear extension,head,washer and axial seating are estimates. HB1024 is factory-listed;hardware table7/16UNF x3in supplies a nominal comparison,not fitted bolt identity,thread form or safe replacement selection. No block receiver is drilled;upper fastening/support remains unverified against the retained block. Flat split washers illustrate WL210 roles,not working spring compression or locking. Crank,block,thrust washers,sump and surrounding poses stay. No strength,torque,thread engagement,loaded lubrication,end-float simulation or verified replacement/removal path. Shank pocket,width,depth,rounded ends and reverse-face symmetry are construction estimates from supplier topology. Existing factory-center-distance datum and all big/small bore,width,cap split,boss/fixing and installed stations stay. Retained end bore/width values come from the earlier aftermarket H-beam comparison;they are not relabeled as stock146454 or fitted dimensions. No photographed lightening/oil hole,casting mark or number is copied or assigned. No cap,bolt,small-end bush,crank,piston or engine pose changes to force a fit. No forging development,material,strength,mass balance,loaded clearance,working articulation or verified replacement/removal path."
}