Safety First!
No matter how enthusiastic you may be about getting on with the job at hand, take the time to ensure your safety is not jeopardized a moment's lack of attention can result in an accident, as can failure to observe certain simple safety precautions. The possibility of an accident will always exist, and the following points should not be considered a comprehensive list of all dangers. Rather they are intended to make you aware of the risks and encourage you to encourage a safety conscious approach to all work you carry out on your engine.
Essentials DOs and DON'Ts