How to test ignition system with an oscilloscope?
• Describe how to test the ignition system using an oscilloscope. 2 Checking For Spark • If the engine is equipped with a separate ignition coil, remove the coil wire from the center of the distributor cap, install a spark tester, and crank the engine. • A good coil and ignition system should produce a blue spark at the spark tester. 3
How is the spark fed to the ignition coil?
One cylinder is fed spark directly by the ignition coil. The other cylinder is fed spark thru’ a spark plug wire (high tension wire). OK, technically speaking, this type of ignition system is not a true Coil-On-Plug (C.O.P.) System but hey, if it kinda’ looks like a duck and kinda’ quacks like a duck who cares?
How do you check a HEI ignition coil?
STEP TWO: Verify power supply to HEI. Disconnect the power wire to the ignition coil. If the coil is built into the distributor cap, this wire will plug into the cap, at the “BAT” or “B+” terminal. Probe the connector on the power wire with the test light, or use the voltmeter set to the lowest scale that accommodates 15 volts.
How does the crank signal work on an ignition coil?
The engine starts to crank, inducing the crankshaft position sensor to start producing its crank signal. The crank signal upon being received by the PCM along with other necessary sensor information, starts to do its little song and dance and sends back a Triggering Signal to each ignition coil.
STEP TWO: Verify power supply to HEI. Disconnect the power wire to the ignition coil. If the coil is built into the distributor cap, this wire will plug into the cap, at the “BAT” or “B+” terminal. Probe the connector on the power wire with the test light, or use the voltmeter set to the lowest scale that accommodates 15 volts.
Can a solid state ignition be installed in a Briggs and Stratton?
You can improve its reliability on a single-cylinder Briggs & Stratton engine equipped with breaker points and a two-leg armature by installing a solid-state ignition conversion kit (service part number 394970) that bypasses the points (conversion kit will not work with a three-legged ignition armature).
How does a solid state ignition system work?
Solid-state systems: the more modern option, these systems use a tiny transistor in the coil or armature to close the electrical circuit that travels through the spark plug lead to the spark plug (s).
How do you Connect Spark tester to ground?
Use your jumper wire to connect the spark tester to a good ground. If you have a separate ignition coil (inline six or four cylinder) remove the cap and rotor, but install the spark tester in the coil in place of the coil wire. Use the jumper wire to connect the tester to ground.