Small Engines

Engine Compression Diagnostics Article Roundup

(Basic) Engine Compression Diagnostics by John Gelsimino Jr. A brief comparison of dry compression, wet compression, and leak-down tests. Read Article at MH Network Dynamic Duo by Mark Warren How to use a current clamp and oscilloscope combination to check cranking compression and the starter motor. Read Article at Motor Magazine Lab Scopes and Pressure …

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Spark Ignition Diagnostics Article Roundup

Secondary Ignition: The Art Of Spark by Scott Weaver This article describes the components of a conventional distributor ignition system, and how they produce a spark. Scott also shows what a (secondary coil) ignition waveform looks like, and describes its different parts. Read Article at Tomorrow’s Technician Maintaining Engine Spark by Mac Vandenbrink An explanation …

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