Thread: W116, no spark
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Old 10-07-2013, 12:43 AM
Frank Reiner Frank Reiner is offline
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Join Date: Feb 2011
Location: Modesto CA
Posts: 4,088
skalie:

If I may, with all respect, the type of fuel injection system has nothing to do with the ignition system. The two systems are entirely discrete, and not connected to each other in any way. Hence, mention of "K-jet" while discussing the ignition system is meaningless.

The "silver box" which you previously mentioned is a signal amplifier and a primary current controller. The "star" segments in the distributor, when rotating, pass matching pole pieces of fixed magnets in the shell of the distributor. Those pole pieces are surrounded by coils of wire. As the star passes the pole pieces the magnetic field is altered, and the change in the magnetic field induces a current in the coils. That small current reaches the amplifier via the green coaxial cable, where it is amplified by biasing a transistor to switch the primary current through the ignition coil on and off. The negative terminal of the ignition coil is connected and disconnected to and from ground through the aforementioned switching transistor. A charge is not sent to the distributor, rather, a current is generated in the distributor.
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