Greg asked Daniel to remove the protective assembly so they could inspect the timing drive more directly. Neither of them let Noah touch a tool. The boy did not ask to. He stood a little forward on his toes, searching the revealed components for the faint motion he thought he had noticed. When Daniel rotated the mechanism carefully by hand, Noah leaned sideways for a better angle. He frowned, stepped back, then leaned forward again.
"Can you do that one more time?" he asked. Greg opened his mouth to object, but Victor answered first. "Do it." Daniel repeated the movement.
The shaft rotated steadily, but at the front of the assembly there was a slight eccentric motion, no more than a tiny wobble. Greg stared at it, then moved his face closer until the light struck the metal from another direction. He watched a third rotation without speaking.
"There," Noah said. He was pointing with one finger, his arm extended well away from the moving parts. "It doesn't come around the same way each time." Greg exhaled through his nose. "I see it."
Victor's voice became very quiet. "What is it?" Daniel answered before Greg could. "Something in the damper and pulley assembly isn't running true. We need to measure the runout and inspect the seating surface. If it's moving under rotation, it could be interfering with the timing we've been trying to correct."
"The balancer," Greg murmured. Noah nodded. The word had been in one of his father's notebooks, though hearing it in this setting made it feel larger and more important. He knew what the part was supposed to accomplish, and he had heard his father explain what happened when rotating parts did not share a stable center. He also knew that he did not know every detail about this particular Ferrari. His confidence came not from believing he understood everything, but from recognizing an inconsistency and wanting to understand it.
Victor set his hand against the edge of the workbench. "You replaced that," he said to Greg. "Three weeks ago." Greg nodded reluctantly. "The replacement was delivered through our parts coordinator.
It was listed as a properly restored, verified assembly, suitable for this build." Victor remembered the invoice. He remembered the price, less because it had mattered than because he had signed so many invoices that any repeated line item caught his attention. "Verified by whom?" he asked.
"The vendor," Greg said. "There should be paperwork." He retrieved a folder from the cabinet, opened it, and began searching for the delivery record. Daniel removed the component with careful attention to the surrounding historic hardware.
They laid it on a clean cloth under the bench light. From a distance it appeared sound, another dark ring of metal among many, but the closer inspection revealed a narrow separation in the rubber bond and wear marks around its seating surface. There was also a suspiciously uneven patch where identifying marks should have been legible.