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| Automotive Ignition System |
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| Distributor and Distributorless Ignition Systems |
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August 17, 2021
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| Distributor Ignition SystemsThe distributor is the heart of the ignition system. Its three basic functions are to trigger the firing of the ignition coil, to control timing advance, and to route or distribute the coil's high voltage output to the individual spark plugs.Fig 1. Distributor Ignition SystemsOn older applications with breaker point ignition systems, the contact points switch the ignition coil's primary voltage on and off. The points are mounted on a movable plate in the distributor h... |
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| Analyzing Ignition Misfires |
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January 11, 2022
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| by Larry Carley The Malfunction Indicator Lamp (MIL) is on, and there is a misfire code. It is a code P0304, which tells you cylinder number four is misfiring. There are no other codes and the engine has a steady miss. Now what?Misfire diagnosis in this kind of situation should be fairly easy. You have a code, you know which cylinder is misbehaving, and you can hear and feel the misfire. The cause has to be one of three things: Ignition, fuel or compression. The hard-to-diagnose misfires a... |
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| Automotive Spark Plug Technology |
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August 17, 2021
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| by Larry Carley Spark plugs have been around almost as long as the internal combustion engine. In 1902, spark plugs were first used with a high voltage magneto to provide reliable ignition. For the next 70 years, spark plugs were a high maintenance item thanks to tetraethyl lead, which was used as an octane-boosting additive in gasoline. Unfortunately, lead tended to foul spark plugs after 12,000 to 15,000 miles of driving. Fig 1. Ignition System Spark Plug Fig 2. The difference between a hot an... |
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| Disclaimer: |
| Not all the content at the links above were created by RIBO Auto Parts Co. Ltd.. Any opinions expressed are personal opinions of the authors. The content is provided for informational and entertainment purposes only and do not constitute an endorsement by RIBO, which makes no express or implied warranty or guarantee about the accuracy, copyright compliance, legality, or any other aspect of the content. |
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| RB-ALT043 |
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| RB-IC3403 |
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| RB-HR10308 |
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| RB-IC9011B |
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