Restoring a Vintage Sun Engine Analyzer to Diagnose Old Cars

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Gearheads love to complain about how modern computerized cars are impossible to work on. But personally, I like that modern cars can often tell us exactly what is wrong with them. In the past, getting any actual data meant using a big, expensive analysis machine. For months now, YouTuber Wrenches & Whitewalls has been working on restoring a vintage Sun Engine Analyzer like that and he may have finally finished the job.

Sun Electric Corporation was a major player in this industry for several decades. During that time, they sold a multitude of different engine analyzers and other kinds of automotive diagnostic equipment. This particular unit was made in the 1970s and would have been on the high-end of the lineup. It has a built-in oscilloscope for analyzing ignition events, plus gauges for everything from engine RPM to vacuum pressure.

Wrenches & Whitewalls likes working on old cars and...

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