The pic shows the horn relay in my 1967. That blackish wire with the small rubber cylinder is the fusible link I believe. The car is running well but that wire is showing its age. Its insulation is spongy and somewhat loose. The others look just fine. To ward off a possible failure and to freshen up that connection I wish to replace that wire.
Looking at the wiring diagram I see that power lead (red) is 10 gauge and the fusible link is 12 gauge. That makes sense according to the reading I have done. (The link should be two sizes smaller although I am unclear as to whether "two" means 12 or 14 for a 10-gauge power wire since the wire sizes are in increments of 2.) So off to the local GM dealer to get a short length of link replacement. The parts fellow tells me that wiring is still sold in XX gauge but links are now sold in mm. He doesn't know what a 12 gauge translates to in mm. Can someone help me with this? Are these links color-coded as to size to make matters simpler?
Looking at the wiring diagram I see that power lead (red) is 10 gauge and the fusible link is 12 gauge. That makes sense according to the reading I have done. (The link should be two sizes smaller although I am unclear as to whether "two" means 12 or 14 for a 10-gauge power wire since the wire sizes are in increments of 2.) So off to the local GM dealer to get a short length of link replacement. The parts fellow tells me that wiring is still sold in XX gauge but links are now sold in mm. He doesn't know what a 12 gauge translates to in mm. Can someone help me with this? Are these links color-coded as to size to make matters simpler?
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