Twenty-six chapters work through the engine as a set of systems that each fail in their own way: fuel that must be clean and free of water, air that must arrive unrestricted, cooling that must actually circulate, oil that does more than lubricate, and an electrical side that causes more no-start calls than everything else combined. Each chapter builds from how the system works to what it looks like when it is going wrong, because a diesel almost always warns before it fails.

The diagnostic chapters are the heart of the book. Starting problems are worked through a systematic path rather than by guesswork. Running problems are read from what the engine is telling you: the colour of the smoke, the character of the knock, the way power falls away under load.

WHAT IS INSIDE

26 chapters covering fuel, injection, air and exhaust, cooling, lubrication, electrics, turbocharging, valve train, governor and timing

Application chapters for generator sets, tractor and equipment engines, and pumps and stationary engines that spend months idle

Systematic diagnosis for starting faults and for running faults, with the readings that separate one cause from another

4 fully worked cases from first symptom to confirmed cause

14 clear technical diagrams

Chapters on tools and meters, on costs and dealing with trades, and on emergency and temporary repairs

Service log and fault log sheets, four appendices and a 14-term glossary

WHO IT IS FOR

Owners of standby generators, compact tractors, irrigation and transfer pumps, and any stationary diesel that has to start when it is needed. Injection pump internals and injector overhaul are identified as workshop work rather than described as weekend jobs.