Cowl, guard and supports.
Expose the joints.
Separate bored cowl, formed guard, four radiator lug roles, two folded body supports and screw/washer envelopes replace disconnected mounting cues. Shared axes explain the comparison joints; they are not an owner-surveyed fixing map.
Evidence behind the roles
Factory PDF p. 86 and p. 88 distinguish CHA281 cowl, CHA420 guard, four radiator screws/spring washers, two upper cowl screws and four side fixing screws/washers. They establish architecture and counts rather than fitted hole coordinates.
IMG_6853 and IMG_6854 show the broad black apron, upper strip/bolt context and adjacent fan/hoses. The supplier CHA420 photograph supports a separate raised sheet profile with two end holes. This is a candidate role comparison, not identification of the fitted strip. Supplier fixing listings give the nominal 5/16 × 1/2, 1/4 × 3/4 and No.10 × 1/2 screw comparisons used here. No new direct owner dimensions are applied.
What changed in the model
| Relationship | Reference construction and limits |
|---|---|
| Cowl / radiator lugs | The existing cowl outside profile and source station remain. Four old hole cues are filled. Their X positions are retained, with rows moved from −68.56/128.56 to −108/164 mm: shifts of −39.44/+35.44 mm. This construction move prevents new lugs crossing source main/small hose ports; it is not a measured fixing map. New 4.25 mm-radius bores align with separate L-shaped lug and nominal 5/16 screw envelopes. The radiator pressure shell/export remains unchanged. |
| Cowl / body supports | Side bores align with folded support channels and four nominal 1/4 screw envelopes. The old body-foot centers remain drawing datums; the upper supports change to meet these shared estimated axes. Actual sections, base attachment, captive counterpart, joint spacing and support load remain unknown. |
| Guard / upper cowl | A raised channel/strip with two end holes sits on a plane parallel to the old apron. Two nominal No.10 screw roles share the new axes. Shape, thickness, holes, seating and the assignment of those factory upper screw roles remain comparisons. |
| Upper body attachment | The front landing-panel reconstruction now includes an estimated rear tongue toward the cowl front/top edge. That construction hypothesis does not identify a fitted joint or connect these upper fixing axes. The two new upper screw roles pass through guard/cowl only and do not establish a complete cowl-to-body support path. |
The radiator lug shapes represent possible integral/soldered attachment roles. Body-support base ownership and weld/fixing are unverified. Smooth screw, head and washer envelopes do not establish threads, locking, engagement, loaded seating or torque.
Keep the source conflicts visible
| Sampled source pair | Intersection |
|---|---|
| cowl retained profile with joint bores fan static | 101.553 mm³ |
| cowl retained profile with joint bores radiator upper open neck and bead comparison | 421.623 mm³ |
| cowl retained profile with joint bores radiator upper full hose route comparison | 1025.99 mm³ |
| cowl retained profile with joint bores radiator lower open neck and bead comparison | 402.124 mm³ |
| cowl retained profile with joint bores radiator lower full hose route comparison | 964.845 mm³ |
| cowl retained profile with joint bores expansion radiator small open neck comparison | 274.889 mm³ |
| cowl retained profile with joint bores expansion visible radiator hose hollow route comparison | 758.406 mm³ |
| cowl retained profile with joint bores expansion two smooth hose clip envelopes | 158.902 mm³ |
| cowl retained profile with joint bores expansion two unassigned mount fixing envelopes | 15.5885 mm³ |
| right body support comparison expansion two unassigned mount fixing envelopes | 23.2016 mm³ |
The cowl retains fan and main/small hose contacts. One body support also contacts an unassigned expansion-tank fixing envelope. These are reconstruction discrepancies, not measured interference or damage on the car. The old cowl is not cut around hoses or moved to erase them. Static fan contact does not validate full rotation, engine movement or operating clearance.
Workshop use
Inspect and isolate cowl, guard, lugs, body supports and fixing roles separately. Source axes and open bores support studying attachment relationships; display offsets are illustrative. The unresolved upper fixing counterparts, estimated panel joint and source fan/hose contacts prevent a claim of an installed mounting fit or tested withdrawal path. Drain/disconnection/support order, loaded structure, tool access and a verified replacement procedure remain unestablished.
Native exports
Eight source meshes contain fifty-six valid STEP solids. Construction checks gauge shared cowl/radiator, cowl/body and guard bores. Browser checks verify metric placement, selecting/isolation, open axes and screw occupancy, declared inspection movement, preserved source contacts, study/download links and mobile layout. They do not validate installed fit.