Posts: 2754
Location: Mauston, Wisconsin | DJ - The galvanic corrosion of the positive lead is quite common. Its not really sulfating, thats an internal battery issue related to under charging. Galvanic corrosion occurs when there are two dissimilar metals, and moisture. I would redo the motor leads with new tinned lugs.
The main motor cables should go on first, then the others and finally stainless steel flat washer & lock washer and nuts, do not use regular steel or brass. Many use wing nuts, if you do, tighten them with a pair of channel lock pliers.
Make sure your battery is mounted in a dry location, preferably in a battery box w/cover. Lastly use a anti-corrosion product to protect/seal the terminations to prevent ingress of moisture.
http://www.westmarine.com/wiring-tools/crc-marine--marine-battery-t...
Some old mechanics use grease, e.g., the same you use for bearings, etc. The only problem is its messy. But works if nothing else is available. Use a brush to put it on.
No matter which you use, you want to seal the entire connection.
Good luck!
Al |
