38Buick 80C Posted January 31, 2010 Share Posted January 31, 2010 How are the headlights in a 38 Buick grounded? Link to comment Share on other sites More sharing options...
Mark Shaw Posted January 31, 2010 Share Posted January 31, 2010 Brian, I recall seeing a soldered wire for ground, but don't remember for sure that it was inside the bucket. I can check and send photos if you like.... Link to comment Share on other sites More sharing options...
Barney Eaton Posted January 31, 2010 Share Posted January 31, 2010 On my '39 (and I have the '38 manual) it appears that most of the lights relied on metal to metal contact, when new. Such as.....the bulb housing was in contact with the socket, which was crimped into the reflector and the reflector was bolted or in metal to metal contact with the outer headlight housing which was bolted to the fender.That relies on 4-5 different places to have good metal to metal contact. To resolve the problem, I have started soldering a ground wire to the bulb socket. File a clean site on the socket and attach the ground wire. On the other end I crimp and solder a terminal that has a large hole that the headlight to fender bolt will pass through. If you cannot find a terminal large enough, solder the wire directly to a washer. This method removes several possible trouble spots along the ground circuit. I have also tried tinning the bulb sockets, but if you can find a new replacement socket, that is much easier to replace the socket than try and get an old rusty socket to take solder. Link to comment Share on other sites More sharing options...
trp3141592 Posted January 31, 2010 Share Posted January 31, 2010 Hi,If the issue with your headlights is that they run too dim, it may not be a grounding problem. The current flow to the lights goes through the headlight switch, then the dimmer switch, and then to the light units. The headlight switches on this era of GM-mobiles are NOTORIOUS for voltage drop, and no amount of cleaned-up grounding will solve the issue. When I converted the Roadmonster to sealed beams my solution was to use a bank of 6V relays and new feeder wires to the lights. I chose to use a separate relay for each of high beam, low beam, and driving lights. Finding 6V relays was the trickiest part of the job, but they are readily available through wwgrainger.com. Note: you'll also need the matching mounting base for each relay.Alternatively, you can use ONE relay triggered by the headlight switch to power the dimmer switch. However, you still run the risk of voltage drop through the dimmer switch. Either way, the relays can be installed out of sight if you wish. If your car is one that is judged, you can argue that the alteration is a safety factor and should be exempt from points-deduction. This really is easier to do than it is to describe. But oh, MAN, does it make a difference!--Tom Link to comment Share on other sites More sharing options...
38Buick 80C Posted January 31, 2010 Author Share Posted January 31, 2010 OK I thought there was a wire soldered to the reflector housing (not the reflector but the piece it sits in). Where does the non-soldered end go???Tom, You might say my headlights are so dim they are non existent....cause they are. I haven't got that far as I am running wiring right now, but I appreciate the heads up and I'll keep that in mind. Link to comment Share on other sites More sharing options...
Bob Engle Posted January 31, 2010 Share Posted January 31, 2010 For AACA judging, just make sure the relays are so well hidden that they can't be readily seen from a cursory look under the dash. What can't been seen, can't be judged.Bob Link to comment Share on other sites More sharing options...
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