Headlights not working!?

[jnec510]

So I tested the power at the switch an there is no power at all. So I'm not gettin power from the relay to the switch. I will try cleaning the contacts an see what I get. I will post back soon

[jnec510]

Its just not working at all. Tried cleanin it resetting the plug. Sanding the connections nada. I'm gonna roll with the relay an go from there.

[jnec510]

New relay in problem solved. Thanks for the help. I'm so glad this community is here

[banzai510(hainz)]

most likely the primary coil side of relay is open.

You can take your new one and ohm it out to get the pin lay out then ck the old one to see if you can fix it and have a spare

[jnec510]

Is there a good way to convert from the 4 wire altenator to the 2 wire of a 72. My alt went out an I have 3 2 wire ones on the shelf

[banzai510(hainz)]

need to see photos of this. I thought by 69 the alternators were pretty standard

[jnec510]

 

This is the plug from my 69 alt.

[jnec510]

Black yellow white/black and solid white

[banzai510(hainz)]

I dont know on this one.

I know 521s can be funky also on the early years.

I have some 4 pin adapters but havent looked at them in awhile.

 

What does your 510 external volt reg connector look like?

 

 

Save these;

this one is EZ as the later alt use the same lay out on T connector

 

70-73

http://datsun510.com/photopost/showphoto.php?photo=124&title=alternator-wiring&cat=3001

 

 

68 early 69?

Here is a diagram of what you have but I dont understand it it has the wire colors as you say but then next to it it has the outline of the connector and different colors listed inside(G/W,G/R,R/L,G/B)

http://datsun510.com/photopost/showphoto.php?photo=790&title=1968-alternator-wiring&cat=3001

[volksguy]

New relay in problem solved. Thanks for the help. I'm so glad this community is here

 

 

Where did you find the relay? im in need of one my self, and havnt located one.

[jnec510]

So I ended up using the gray relay from an 89 240sx that I parted out awhile back. Works great an everythin function proper. The one I bought from the autoparts store is for 70 an up. Everything I try to buy for my 69 is wrong.

[izzo]

Jnec

 

You trying to install an IR alt?

 

I installed an IR alt on my 69 dime with that 4 pin connector. First i put up an ad for help, nobody did. So anyways, i just left that guy unplugged. Then i unplugged the voltage regulator and put it in my tool box :cool: After that, i made two short wires with spades on all four ends. Followed the external voltage regulator swap at the connector (instead of cutting and splicing the wires). Everything works as it should. I even ran a voltage regulator to the battery with it on/off and it reads like it should. You will need to pull out some wiring diagrams to figure out which two wires from that 4 plug to hook up to the alt for your dummy light on the dash. I am hoping to do this at some point myself, just not a priority for me at this point.

[Boaty]

Oooh the pesky headlight issues. I remember those!

I ended up cleaning/reterminating everything for my headlights. Bought new pigtails for the headlights as well (they were cheap). The originals were crusty and such.

 

If you haven't tried it yet, give your fuse box a vinegar bath. You'll be surprised what vinegar bath's fix...