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Offline ToniJ1960

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78 wagon rear lights
« on: January 20, 2014, 09:37:45 PM »
 I got my 78 wagon running now and I find out theres a light out in the back. I think the dual filament 1157 goes on top and has the brake light and turn signal, and the 1156 goes on the bottom socket. Is it an 1156 in front too or is one a hd somewhere?

 My drivers side blinker flashes in front and back but flashes very fast I dont remember it doing that before. Not when both bulbs were ok.

Offline bbobcat75

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Re: 78 wagon rear lights
« Reply #1 on: January 21, 2014, 07:04:00 AM »
check your grounds!! usually a ground wire issue!

good luck!!
1975 mercury bobcat 2.8 auto
1978 mercury bobcat wagon 2.3l - soon to have a 88 tc drive line
1975 ford pinto - drag car - 2.3l w/t5 trans - project car

Offline tbucketjack

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Re: 78 wagon rear lights
« Reply #2 on: January 21, 2014, 03:49:40 PM »
Should be 1157's front and back.

Offline ToniJ1960

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Re: 78 wagon rear lights
« Reply #3 on: January 21, 2014, 07:12:22 PM »
 So the 1157 is the top one and 1156 below it?

Offline ToniJ1960

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Re: 78 wagon rear lights
« Reply #4 on: January 22, 2014, 10:27:15 AM »
 The sockets have all been rewired and patched so many times :(

 So someone with a wagon will know.

 Im sure now the 1157 goes in  the upper location and 1156 in  the lower. One filament in  the 1157 is for both brake and turn signal? The brake light goes through the turn signal switch. And then the second filament is either for parking light or for reverse light?

 Then the 1156 would be for the other of the reverse or parking light. I just want to make sure theyre  set up the way theyre supposed to be.

Offline oldkayaker

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Re: 78 wagon rear lights
« Reply #5 on: January 22, 2014, 04:22:06 PM »
I do not have a wagon.  The following is my interpretation of a 78 EVTM and some earlier Pinto manuals and some assumptions on bulb numbers.  The 1157 bulb is the dual filament bulb for stop-turn (brightest filament) and tail light (dimmer filament).  The 1157 should be placed behind the red lens.  The 1156 bulb is a single filament for your back up lights and should be place behind the clear/white lens.  The wire colors should be:
light green with orange stripe - to left hand stop-turn filament (from turn signal switch)
orange with light blue stripe - to right hand stop-turn filament (from turn signal switch)
brown - to both tail lights, both side marker lights, and license plate light (from head light switch)
black with pink stripe - to both back up lights (from transmission switch)
black - ground to all lights (from numerous chassis connections)

Hope above is correct and helps.
Jerry J - Jupiter, Florida

Offline ToniJ1960

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Re: 78 wagon rear lights
« Reply #6 on: January 22, 2014, 08:48:01 PM »
 Exactly what I need thank you Kayaker.

Offline amc49

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Re: 78 wagon rear lights
« Reply #7 on: January 23, 2014, 03:10:24 AM »
It's not even that hard, the single contact on end of bulb MUST go in the single contact socket, the dual one goes in dual socket. You look inside the sockets to determine number of contacts there and same on any car on the planet. The bulbs also have different pins on the sides, they are stepped high/low on dual contact bulbs and in line on singles since the orientation does not matter. So, butchery job if they are transposed since bulb was forced into a socket the pins don't line up with, and how one tears up sockets.

LOOK AND THINK should cure any issues there. Wagon or no. You can't have a 'second filament' for the reverse since the reverse light physically is in a separate position with a clear lens.


Offline ToniJ1960

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Re: 78 wagon rear lights
« Reply #8 on: January 23, 2014, 12:01:03 PM »
 All Im well aware of but it could help someone else. I dont remember if the sockets themselves are keyed differently in order to prevent them from being switched or not, and the wires may have been cut and spliced a time or two. I do have a wiring diagram, but it was good to get Kayaks answer with everything all in one.

Offline amc49

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Re: 78 wagon rear lights
« Reply #9 on: January 23, 2014, 06:17:57 PM »
If you don't remember then look. Why I mentioned it. The answer right there. The parts ARE clearly keyed. Why I said what I did, don't stay in a mental vacuum........ .............m ost things can be answered by simply looking and thinking. Research is your friend and the internet could make up for no schooling at all for a driven person. The key is realizing the drive factor is in your best interest.

Absolutely no insult or injury intended there at all of course.

Wire splicing in and of itself means nothing unless person doing it was incompetent. I drive a Focus that the main underhood wiring harness was severed in like 5 places after a wreck by fire department that has orders to do so to protect their guys from say delayed airbag going off. I spliced all of them back when I fixed the car and so many I couldn't count. That was in 2008 and car started back up with zero issues and indeed now still runs perfectly.