The clamp hooked onto the spark plug wire should detect every time an electrical current travels through, telling the spark plug to fire.
Aim the light directly at the timing marks. Take the timing light and squeeze the trigger. Take the Timing Light and Aim it at the Timing Marks. Start the engine and allow the car’s engine to heat (about ten minutes). This clamp is sensitive enough to read when an electrical pulse flows through the wire from the distributor to the spark plug. The clip should go over the outside of the wire. The most oversized padded clip should be fastened to the spark plug wire that leads to the number 1 cylinder. Attach the Large Clip to the Number 1 Spark Plug Wire (If you don’t know which is, look for the + or - symbols on the battery). Locate the red wire and connector on the base of the timing gun, and one at a time, connect the red wire to the positive terminal and the black to the negative. Connect the Red and Black Clamps on the Timing Gun to the Battery. In addition, make a note of the location of the number one cylinder. The firing order helps minimize vibrations and engine knocks. The sequence is the order in which the spark plugs fire to maximize power and performance. Not every engine is built with the same firing order.
#Timing gun manual
Consult the Owner’s Manual and Find the Location of No. The timing gun will be hooked up to the battery for power, so ensure that no residual battery acid is interfering with the electrical connection. If not, spend a moment cleaning the terminals. The first thing to do is to ensure that the engine is off and that the battery terminals are clean enough to make a good connection. Ensure the Engine is Off and Battery Terminals are Clean There are several steps to using a timing light, as are detailed below. Using a timing light just takes a little bit of effort and some patience. One of the clamps on the timing gun will need to be attached to the wire, but for now, just identify which wire is the right one. Since the car's timing is set to the number one chamber, consult the owner’s manual to verify which spark plug wire is connected to the first chamber of the firing order. And the explosion forces the piston to retreat as the exhaust valve opens to allow burnt fumes to escape through the exhaust (exhaust stage). The spark plug fires as the piston reaches its optimal position (combustion). As the piston head moves upward, the gas and air are compressed (compression stage). As the intake valve opens, air and fuel are drawn into the chamber (intake stage). (This refers to the four positions a piston is in at any given time - Intake, Compression, Combustion, and Exhaust). Generally, the only cars that need a timing adjustment are older classic cars with a designated four-cycle stroke. The Four-Cycle Stroke of an Internal Combustion Engine
They will be able to tell if the car’s timing is off or if there is a faulty sensor giving a bad reading.
In that case, it is best to take the car to a certified technician to run the DTC (Diagnostic Trouble Code). Suppose the sensor lights are illuminated in the instrument panel (usually a check engine light). Most modern cars have electronic ignition, which means that an internal computer adjusts the timing automatically.
How Do I Know if My Car’s Timing Needs Adjustment?Ī car that is not running in time will show tell-tale signs of a rough idle, pinging, loss of power, or even a check engine light, but this does not always mean a car’s timing needs to be adjusted. (The first time I used a timing gun, I was so frightened that I asked a mechanic friend to come over and do it while I watched).
#Timing gun how to
While most technicians know how to adjust the timing on a classic car, the process can be a bit intimidating for a novice. The correct timing can affect your engine's performance and ability to run smoothly. The car’s timing refers to the ignition and the “time” that the spark plug fires, creating an explosion inside the chamber. Adjust the distributor until aligned and reading correctly.Īs a lover of classic cars, I know how frustrating it is if a car isn’t running at the right timing.Attach padded clip to the Number 1 spark plug wire.Connect the Red - Black Connectors to Battery.The basic process of using a timing light to double-check the timing of the ignition is as follows. A timing light is an excellent tool for any car restorer's garage, but it can be intimidating to know how to use it.
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