Accessory guideTiming Light

This workshop guide delivers a complete, professional procedure for using a timing light to check and adjust ignition timing on older engines, written for motorists and working mechanics who maintain vehicles with mechanical distributors and vacuum advance systems. You will learn how to select the right timing light for your work, connect it safely to the battery and number one cylinder, and interpret the flashing mark against the timing tab with confidence. Worked examples and real diagnostic jobs show how to distinguish a simple adjustment from a worn distributor or faulty advance mechanism. After finishing, you will be able to perform a timing check from start to finish, document the result, and recognize when the fault lies beyond a basic adjustment.