Ford V8 Distributor Rotor Phasing Diagram - Firing Order 1-3-7-2-6-5-4-8

This is a hand-drawn schematic (filename rotorphase.jpg) showing distributor rotor phasing for a V8 engine. Eight circles represent the distributor cap terminals for cylinders, each labeled with its cylinder number and the distributor rotation angle at which it fires: #1 at TDC (0°), #3 at 45°, #7 at 90°, #2 at 135°, #6 at 180°, #5 at 225°, #4 at 270°, and #8 at 315°. Reading the sequence of increasing angles gives the firing order 1-3-7-2-6-5-4-8. In the center is a sketched multi-lobed distributor cam/reluctor with radiating lines marked at degree intervals (24°, 45°, 72°, 96°, 120°, 144°, 168°, 192°, 216°, 240°, 264°, 288°, 312°, 336°), showing intermediate points of rotor rotation between firing events (nominally every 24° in a pattern, with a 45° mark aligning to cylinder #3). Straight lines pass through opposing cylinder terminals to illustrate the geometric relationship between cap terminal positions and rotor angle. A reader can use this diagram to understand how the rotor position corresponds to each spark plug terminal and to verify correct rotor phasing when setting up or diagnosing a Ford V8 distributor. The document itself carries no year, make, part number, or engine identification text.