I have been idly keeping track of some 'rebuild the head' stories, and from
experience with other stuff, I am wondering if the stories of 'gross
corrosion in internal passages' is not a product of rust, but of
electrolysis. From a good bit of work on boats, one quickly learns
grounding is paramount, or else the electric charge generated by water
friction (and stray wiring connections) will eat at the most susceptible
metal. (or something crucial) While boats install zinc plates to be the
sacrificial unit (regular replacement required), every time I hear of water
passages eaten to the thru-wall point, I get the feeling that maybe the
grounding problem that roadsters have is the culprit. A possibility? Words
from the experts?
Fergus O, 69 2000
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