Ignition System Basics
Adjusting the point gap also adjusts the dwell angle, which determines how long the points... When we adjust point gap, we are also adjusting dwell angle...
JWHA - Ignitor Ignition
If you use a dwell meter you know how frustrating it can be to get the proper dwell angle. Point gap is really just an approximate guess by the manufacturer...
Replacing and gapping points
When you crank the starter (it doesn't have to start) you should be able to read the dwell angle on the meter- it should be 40-45 for /6s and in the 27-34...
Fiat Dual Point Tune-Up
The dwell angle is the number of degrees of distributor cam rotation through which the breaker points remain fully closed (conducting electricity)...
Digital Traces
Primary ignition dwell was once adjustable via the air gap in the ignition points. We have no control over the dwell angle in pointless ignition systems...
JEH - Transistor Ignition Module page
Ignition Dwell Time - A rule of thumb to calculate dwell angle is Cam Shaft RPM x.0075 for 4 cycle engines, or Crankshaft RPM x.0075 for 2 cycle engines...
Dwell Angle
Dwell Angle
