This blog, in addition to the usual maintenance details for classic mini cars, an attempt is made to explain the "whys" and "wherefores" of the various jobs.

Thursday, 15 October 2009

The electrical equipment and instruments

Only an elementary knowledge of electricity is necessary when carrying out maintenance and adjustment of the electrical equipment. When a fault develops which is beyond elementary first-aid measures such as tightening a loose connection or renewing or insulating a broken or chafed lead, of course, it is always advisable to enlist the aid of an auto-electrician and, where necessary, to take advantage of the service-exchange scheme operated by B.L.M.C. dealers and Lucas service depots, under which a faulty component is replaced by a reconditioned, guaranteed unit at a fixed charge.

For service and fault-tracing purposes, the components of the electrical system can be divided into four main groups: the battery; the charging system; the lighting circuits and electrically-operated accessories; and, strictly speaking, the ignition system, which deserves a chapter of its own and is therefore dealt with in Chapter 7. We shall begin, therefore, with the battery, which is virtually the heart of a modern car, with its wealth of electrically-operated equipment.