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<p>I have gone through a number of coils in the past few years. They
may have been faulty but........</p>
<p>Reading the Lucas repair manual carefully, I came across this
"Test 6. Voltage at <b>"-" </b>Terminal of Coil............4. A
high resistance in circuit from the coil to the <b>CB</b> on the
distributor."</p>
<p>1. Manual was published in 1995 and is for negative earth cars,
my car is positive earth.</p>
<p>2. "CB" is not used on modern coils, they are "-" & "+".
When I connected my coil up "CB" = "+". <br>
</p>
<p>This is where my question comes in. "CB" that was "+" in 1959 is
now shown in 1995 as "-". (Logical as the cars are now negative
earth) <br>
</p>
<p>Does it makes a difference? Were coils designed for positive
earth? Am I therefore running the coil backwards as I am using a
coil designed for negative earth?</p>
<p>Cheers,</p>
<p>Martyn</p>
<p><br>
</p>
<p>PS: Standard Intermotor coils, yes I am aware of the Lucas Sport
coil problem, and I believe Lucas/Intermotor may have had an issue
(Coils were replaced over a 5 year period, so I would think I
avoided the 'bad batch" if such existed).<br>
</p>
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