Therefore, cylinder #1 will be located at the rotor's position when the distributor cap is aligned with its position relative to the engine. You can't determine the exact location on the cap without physically looking at the distributor and the cap itself, as the numbering on the cap might vary slightly depending on the manufacturer. However, knowing the firing order allows you to determine it.
To find #1: With the engine at top dead center (TDC) on the #1 cylinder compression stroke (both valves closed), align the rotor in the distributor to point to the #1 cylinder terminal on the cap. Use a timing light or a shop manual to properly verify TDC on cylinder #1 to ensure accurate location.
