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Timing Lights

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					A timing light is an essential tool for service engineers and mechanics for fault
diagnostics and timing adjustments. A timing light is a stroboscope and is used to
dynamically set the ignition timing of a petrol engine. However with the onset of
engine management systems and electronic control of ignition timing with most
modern engines timing lights are now most commonly used for fault diagnostics.

The purpose of a timing light is to ensure that the spark in each cylinder occurs at the
right instant for the most efficient ignition of petrol in the engine. Which over time
can become off from the manufacturers recommendation.

How do they work work?
Most timing lights are powered via the cars own 12v battery and has a pickup lead
that connects directly to the ignition leads of an engine. A bright flash of light occurs
at the same time as the ignition spark creating a strobe. This illuminates the timing
pointer mark on the rotating engine and freezes the image for that instant. Just by
looking at the manufacturers timing marks you are able to see the position of the
engine when the ignition spark occurs. The timing is then adjusted by altering the
position of the ignition distributor.
Initial or basic timing is done at idle speed however is a higher speed is required you
need a advanced timing light as at higher speed the spark happens earlier. Timing
lights are available with an advanced dial that sets a delay in the flashing allowing the
user to see the timing marks as they were before the engine speed was raised

Due to CE regulations all new timing lights now have Xenon light rather than the old
Neon light. One of the advantages of the new Xenon lights is that they provide a
brilliant bright blue/white light which can be seen on daylight and in bright workshop

For more information and to view a range of timing lights please visit IMG
Automotive

				
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