Wiring Diagram 49 Ford Coupe
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Would some one please e mail me the wiring diagram for my 1950 ford coupe custom V8 Flat head car ? My tail lights are not getting current sooo they do not work and brake lights do not work. the head lights work properly on bright and dim . Any way you could help or make suggestions would be GREATLY appreciated !
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Only thing I have is a 51 olds....might be close
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This is probably real close 1952-54 Ford, 1949-51 used the same color codes you can print this to 8" X 11" but take it to a copy place and blow it up to 11" X 14" and it is much easier to read. 54 Ford wiring | The H.A.M.B.
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http://www.vanpeltsales.com/FH_web/...pics/Flathead_Electrical_wiring1949-50car.jpg
for the rest of the rodders here is the big link page of early wiring diagrams..
Flathead Electrical Wiring Diagrams
i cleaned up the image slightly... see added image below.
don't forget that bulbs need to be connected to the ground.. or they will try to ground through the tail light circuit..
just for kicks.. strip some 16 or 18 gauge wire. loop it around the base of the bulb globe right at the top of the brass shell and tighten it by twisting the bulb while holding the wire.. run that wire to the body.. someplace..
you will want to make sure that you are getting good ground connections up front.. which ever side of the battery that is hooked to the body and the engine block become Ground..
if its a Negative ground car or possibly a Positive ground car..
i cannot tell from the wiring diagram..
got a volt meter... set it to 20 volt DC scale.. touch both wires on the stop light switch.. have somebody step on the brake.. you should go from close to battery voltage to 0.02 or so.. if you show more than 0.08.. the switch is bad.. you may have to perform that a second time with the meter is 2 volt DC scale.. if the switch is bad.. there will be more resistance to current flow. so it will show up as more than 1/10 of a volt .. if the switch is bad.. you may have half the battery voltage. this is a different type of testing than most people know how to do.. i do it daily and i can fix almost any electrical problem..
you can also hook up a single jumper cable from the engine block.. laid on the ground under the car and extended to the back of the car.. clip one lead of your meter to that cable end and touch the bulb shell as you somebody is depressing the brake pedal.. again... a very low reading.. because of the length of the circuit.. 0.3 volts would be a good reading..
guess what..
while you have that jumper cable laying under the car.. hook it to the terminal of the battery that is not connected to ground.. probe the green wire with your volt meter.. while somebody steps on the brake pedal.. 0.4 might be OK.
post what you get..
print this... practice on other conventional cars and trucks in your shop.. http://i.imgur.com/WMDprhm.jpg so you can see what the reading are like.. only takes a few minutes.. try it on your car..
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testing
To find the trouble in this case, go through these steps.
1- Make sure the bulbs are good. Replace them or bench test. These bulbs are dual filament, 6 volt.
2- Make sure the fuses are not blown. Test with voltage testor. Tail lights are a different circuit (fuse) than the turn signals.
Does the license plate light work?
Do the front park lights work?
3- Do the front turn signals work? Turn signal flasher will be affected if the bulbs are bad.
4- Check the ground connection at the tail light sockets.
vicrod
Posted by: 18gaugewire.blogspot.com
Source: https://www.hotrodders.com/threads/need-wiring-diagram1950-ford-custom-v8-coupe.410322/