Set the rotary switch to "Dwell" (position C). Connect the black lead to ground, the red lead to the coil’s low-tension terminal.
The needle reads 35°. The PDF’s troubleshooting guide tells you: "Low dwell angle = points gap too wide. High dwell = points gap too tight." You adjust the points, re-check, and the misfire vanishes. Gunson Digimeter 320 Manual Pdf
Start the engine. The manual instructs you to read the scale marked "DWELL" (0-60 degrees). For a 4-cylinder, spec is usually 60° ± 3°. Set the rotary switch to "Dwell" (position C)
Save the PDF to your phone’s local storage. The one time you need the RPM multiplier, you won’t have cell service in your buddy’s barn. The PDF’s troubleshooting guide tells you: "Low dwell
In an age of $10,000 diagnostic tablets and cloud-based engine analytics, it is easy to forget that some of the most useful tools in a garage are analog, affordable, and nearly indestructible. Enter the Gunson Digimeter 320 .