Re: '37 120C Touring Sedan Headlights

Posted by R Howe On 2020/3/24 17:45:25

Hello. Here is what I did for most of the day today on my headlight issue and it did not solve the problem. Since I am a novice at this I would like for those of you who are to kindly inform me of what I could have done in addition. I would greatly appreciate it.
First, I took my ohmmeter and checked the resistance from the headlight reflectors to a head bolt and received 1.3 to 1.5 ohms. The headlight reflectors actually go to ground. I then dismantled the entire assembly on both sides. I then removed the paint on the underneath of the headlight casings where they meet the pedestals. I also removed the paint on the top of the pedestal where the casings rest. I then checked the resistance in the wiring within the headlight sockets to the ends of those wires and received 0.5 ohms for all three lines. That was for both headlight assemblies. I then checked the resistance from the light switch to the end of those wires where the headlight wires plug in and received 0.5 ohms on each and every one. I then reassembled the headlight casings and attached them back onto the pedestals. I checked the resistance again from the headlight reflectors to the engine head bolts and received 0.5 ohms on both sides. After plugging in the light wiring to the switch lines, I turned the lights on and started timing. The lights dimmed after 5.5 minutes. I truly do not know what else to do except suspect that my Optima battery has been sitting for so long it cannot hold a charge under that type of load condition for too long. However, I do tend to doubt that theory. But, as I said earlier, I am a novice and I probably missed something. If anyone has any additional information on procedures that I might try, it would be greatly appreciated.
Thanks.