![]() Make sure the transmission is in neutral or park and the parking brake is engaged. Ensure the connections are secure.ģ. Start the engine: Start the vehicle's engine and let it idle. 1 spark plug cable and that the arrow on the clamp is pointing toward the spark plug. Also, make sure the inductive pickup clamp is properly connected to the No. Connect the red clip to the positive terminal of the vehicle's battery and the black clip to the negative terminal. The Innova 5568a timing light has three connections: red for positive (+), black for negative (-), and the green adapter is only for reading dwell angle. Open the hood and locate the ignition coil or distributor, depending on your vehicle's ignition system. To use the Innova 5568a timing light, you can follow these steps:ġ. Prepare the vehicle: Park the vehicle on a level surface and ensure the engine is turned off. Note: The 55a are the same timing lights and operate the same way. Using the Innova 5568a timing light on a 1968 MGC. The explosion forces the piston to retreat as the exhaust valve opens to allow burnt fumes to escape through the exhaust. The spark plug fires as the piston reaches its optimal position which is combustion. As the piston head moves upward, the gas and air are compressed. As the intake valve opens, air and fuel are drawn into the chamber. Four-Cycle Stroke refers to the four positions a piston is in at any given time which is Intake, Compression, Combustion, and Exhaust. Usually, the only vehicles that need a timing adjustment are classic cars with a designated four-cycle stroke. The Four-Cycle Stroke of an Internal Combustion Engine ![]() Most modern vehicles have an electronic ignition system, which means that an internal computer adjusts the timing automatically. This doesn't always mean a vehicles timing needs to be adjusted. Learn more about Innova Scanners How Do I Know if My Car’s Timing Needs Adjustment?Ī vehicle that isn't running in time will show signs of a rough idle, pinging, loss of power, or possibly a check engine light. You can access the same advanced technology used by professionals, without the high costs or subscription fees. ![]() Innova diagnostic scanners assist you in understanding your vehicle, finding problems, and providing guidance for repairs. ![]()
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