A question for you electronic types: About 20 years ago, while siting at a
bar in North Wildwood, NJ, a friend of mine did the transistor upgrade to
the low pressure SU fuel pump from my TD. It has worked flawlessly and
burned points have been a thing of the past. However, last weekend, I
dropped in an Optima battery a friend had given me, and like a dummy, I
connected it with a negative ground instead of the appropriate positive
ground. Course, when I turned on the key, the fuel pump remained silent. I
banged on it, and did the usual stuff-- but the power was reversed through
it for quite awhile before I came to my senses.
Last night, I noticed my stupidity, turned the battery around, and the fuel
pump started right up!
Why did the polarity-sensitive electronics not "fry" when the got juice in
the "wrong" direction? Should I assume pump failure is near in my future
and swap pumps now?
Many thanks for the education.
JohnD
--
Racing in the Past Lane!
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