Posted by John T on September 27, 2018 at 17:28:49 from (174.255.0.153):
In Reply to: Ballast resistors posted by mudmuckgrease on September 27, 2018 at 16:56:20:
1) Anytime and all the time voltage is present on the solenoids S terminal the solenoid is closed.....
2) Anytime and all the time voltage is present on the S terminal, the I terminal is hot
3) While the I terminal is hot its supplying full unballasted voltage to the coil (ballast is by passed) and if you use 12 volts unballasted on a 6 volt coil it runs hot, can eventually fry, plus the points burn prematurely.
The way its supposed to work is the solenoid is closed ONLY while cranking and therefore the coil receives unballasted battery voltage ONLY while cranking for improved cold weather starting. The big battery cables go trough the solenoid and its closed by applying low current via a start switch to the S terminal
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