Series Land Rover
(UK/Europe)
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Series 3 Land Rover Series
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If your petrol-engined Series Land Rover becomes increasingly difficult to start, or fails to start at all, then it could be the coil that is at fault. To test it, remove a spark plug and then re-attach its lead. Hold the plug lead with insulated pliers so that the plug's electrodes are near the engine block, then have the engine cranked. The ignition should be on of course. If a good spark is seen then the coil is good. If no spark at all, then there is a break in the circuit, which may or may not be located inside the coil. Substituting a new coil will decide that one for you. Alternatively, if you have a multimeter available you can check for a break in the primary coil circuit by removing the connections from the terminals on either side of the central ignition lead and checking the electrical resistance between them. The result should be around 3-4 ohms. If the reading is about half this value then it could be that the coil should be running with a ballast resisior; if the reading is very much lower than this then there is probably a short circuit occuring between some of the primary coils of wire. A break in the primary wiring would give an infinite resistance i.e. off the scale.
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