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Automotive glossary

Strobe Timing Light

A strobe timing light flashes in time with a spark plug, making timing marks appear still so ignition timing can be checked.

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What is Strobe Timing Light?

It clips onto the number one spark plug lead. It is used on engines with adjustable distributors. Advance models show how many degrees the timing moves. Painting the timing mark white makes it easier to see.

How it works

Each spark triggers a flash, freezing the rotating pulley mark against a fixed scale.

Why it matters for your car

Keep hands, hair and leads away from the fan and belts. Follow the maker’s timing figure and test conditions.

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