Re: BigKev's 1954 Packard Clipper Deluxe Sedan
Posted by HH56 On 2010/9/12 9:45:33
Very nice job on the loom. When you (or anyone else with switch out) checked the headlight switch, do you remember the condition of the connection at this terminal. I have some switches where the dash lights would work for awhile then go out--or not work at all.
On those switches, that feed terminal and rivet have loosened slightly. I suspect instead of pushing the wire straight down, because of location it was pushed in at an angle and with the leverage, rivet end was stretched. A little resistance, a little heat and eventually a little oxidation and no connection since the contact area is so small.
On the good switches I have, that rivet is tight and no terminal movement is possible. On the others, the terminal will wiggle sideways to the extent the location tab at terminal end will allow.
I have not found a foolproof way to tighten things up again. Thorough cleaning is a problem which may be contributing to the difficulty. Tightening the rivet is difficult and too much pressure cracks the ceramic yet not enough and no lasting improvement. Electrical rosin core solder I tried did not seem to flow or stick well. Maybe a much bigger iron as it's a big heat sink.
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On those switches, that feed terminal and rivet have loosened slightly. I suspect instead of pushing the wire straight down, because of location it was pushed in at an angle and with the leverage, rivet end was stretched. A little resistance, a little heat and eventually a little oxidation and no connection since the contact area is so small.
On the good switches I have, that rivet is tight and no terminal movement is possible. On the others, the terminal will wiggle sideways to the extent the location tab at terminal end will allow.
I have not found a foolproof way to tighten things up again. Thorough cleaning is a problem which may be contributing to the difficulty. Tightening the rivet is difficult and too much pressure cracks the ceramic yet not enough and no lasting improvement. Electrical rosin core solder I tried did not seem to flow or stick well. Maybe a much bigger iron as it's a big heat sink.
Attach file:
(48.15 KB)
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