6 Volt dim headlights I have a restored 40 ford coupe with dim 6 volt head lights. How can I get them brighter?
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Re: 6 Volt dim headlights Do they make 6V halogens or LEDs?
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Re: 6 Volt dim headlights There are 6 possible reasons for dim headlamps. being 6 volt has nothing to do with it. 1. bad grounds ( dirty, corroded, or bad contact with bare metal due to paint) 2. wrong size battery cables. 6 volt cables need to be of a heavier gauge than a 12 volt cable. 3. a bad or incorrectly operating generator. 4. Bad, or incorrectly adjusted voltage regulator. 5. Bad, or low charged Battery. 6. loose generator belt. also be sure to run a ground from the body to the frame and a ground from the frame to the engine, and the battery ground cable to the engine . also on the grounds, if the headlamp bucket is painted , it may not be grounding, run a ground straight from the bucket to an unpainted metal area and see if it makes a difference
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Re: 6 Volt dim headlights Also be sure the charging rate is set high enough. I assume the bulbs and reflectors are in good shape?
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Re: 6 Volt dim headlights If you follow these tips, you will find that your lights will be bright. No need to go to 12 volts, or to install Halogens (which take a lot of power).
That being said, I would be interested if someone came out with a set of reasonably priced 6 volt positive ground sealed beam LED's. |
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I was looking for 4" lens housings, to replace my fog lights, that you could change the bulbs to LED's, so far no luck. https://www.fordbarn.com/forum/showt...22#post1796222 |
Re: 6 Volt dim headlights I ain't holding my breath on these. Even if they did come out, they'd probably look weird anyway.:rolleyes:
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Re: 6 Volt dim headlights Measure the voltage at the bulbs, compare to battery voltage--- it won't matter what bulbs you have in the electricity is not getting there
A 6 volt car (Packard)that I work on came with every type bulb, all were dim, only 4.5 volts making it to the lights. kept tracing back and found the loss at the ammeter, it had rusty nuts, replaced them, now all lights bright |
Re: 6 Volt dim headlights 7" headlights with H4 and curved glass is around...6v H4 is a step up but not big enough to replace a working sealed beam.
Every LED H4 iīve seen this far hasnīt had a correct beam pattern that would pass our inspection here...and cost a fair amount of money. |
Re: 6 Volt dim headlights check all ground ,had same problem on my 53 f-100 ,ground was loose , I also have 6 volt halogen headlights
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Re: 6 Volt dim headlights Had the same problem on my '39 with sealed beam replacements. On this one, only the right side was dim. Thought the bulb was bad, so bought a new one....same result!! So, went after the ground issue....Voila!!!...problem solved.
Hope you fix is that simple!! |
Re: 6 Volt dim headlights 1 Attachment(s)
An easy fix to dim headlights on a Ford is to make sure all or the wiring/grounds are clean and tight. Add a GM style headlight relay into the headlight wiring. The headlight switch will activate the relay, then full power goes from the relay to the headlights. Conventional 6v headlights will be amazingly bright.
When I converted the headlights on my '36 from the original reflector/bulb type, I used '40 Chevy headlight pods/wiring, eliminating the original Ford column mounted switch. When I removed the '40 Chevy headlight pods in 1961/62 in favor of original 36 pods I retained the Chevy wiring and relay. Ya know the old saying, 'If it ain't broke, don't fix it'.. For those of you that have never noticed, the pic in my Avatar is of my car with the '40 Chevy headlights. |
Re: 6 Volt dim headlights Make sure your ground points are clean and tight. Also make sure all the wiring connections are clean and tight. If all of the wiring and grounds are good and you are not happy with the brightness look for Wagner number 6006H headlamp. that is a 6 volt halogen sealed beam. i am running these on my 53 Courier.
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Re: 6 Volt dim headlights Your lights are dim? mine are candles of course I don't go out in the dark but my 1923
Ford will blind you 6vts too. Ok We all know about the grounding. We all know about charging and healthy battery. I don't remember if a 1940 has a terminal board left inner fender but my 46 does. So on this board I found my high & low candles and jumped from the battery each one and the sealed beams went from yellow to bright white. Only means the headlight switch power is sick, the power from switch to dimmer switch is sick or the dimmer foot switch or the wires to this terminal board needs help. No doubt all these years switches get green contacts or so. A little OT make you feel better. My father when everything was 6vts was the first 'road rage'r ' High beams on his rear mirror he pulls over then gets right on the guys bumper and high beams him while my mother is having melt down while he's mumbling *(b##*tard) * LOL I'm just saying they were bright then and no reason not for now. And after the war many cars got headlight relays maybe a band aid but worked well. Think I'll get one. sam |
Re: 6 Volt dim headlights In the 14 years I've owned my '36 pickup,I had never driven it at night, due to the dim headlights; it has the original headlamps, 6V positive ground, three brush generator.This was a particular problem in winter since it gets dark so early which would limit travel destination. , I finally decided to do something about it. Checking the grounds did not help, clearly the problem was the voltage drop in the switch at the bottom of the steering column. There was an excellent post from about 2015 by JSeery (also with input from supereal) about setting up high and low beam relays on a compact board, including a wiring diagram. This made it an easy one day project, and the light output was dramatically improved. I used heavy duty 6 volt Cole Hersee solenoids (from dbelectrical.com,#24039), and original type wiring/connectors from Brillman Company. To get an even better light, I used high output LED bulbs from classicautobulbs.com (2330 P15-d-30), these have the APF (American Prefocus) base like the original bulb, draw only 1.14 amps on high beam, 1000 lumens light output, and a decent beam pattern with the original lenses. I would say the light output now is comparable to my '65 Mustang with halogen sealed beam headlights-not spectacular but reasonably good-enough for SF Bay Area traffic, which is very heavy. Many thanks to JSeery and supereal, also petehoovie who posted the link for the LED bulb source.
Adam |
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Re: 6 Volt dim headlights I would also recommend installing a 6V headlight relay as this takes all the stress off the old wiring/headlight switch and also ensures maximum current/voltage is delivered to the headlights thus maximizing performance. I have done this with my original '41 coupe with Halogen bulbs in semi-sealed beam units and the headlights are comparable or even better than some later model 12V headlights, definitely no real need to go 12 volts, if everything else is up to scratch of course.
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Re: 6 Volt dim headlights If you are not wanting to keep it 100% original, relays are a good option.
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