"Major diameter: 12 millimeters. Flange diameter..."

Kenji wiped his hands on a rag that had seen better days. He stared at the disassembled diesel pump on the workbench, a complex puzzle of springs, gaskets, and casings. It was a piece of machinery from a different era, built when things were made to be repaired, not replaced.

"The radius under the head," Kenji muttered to himself, tracing the curve on the screen. "That's the bottleneck."