Starter Generator Light Wire Burned up

[Horseoholic 169]

Hey folks , Had a little issue yesterday with my 856 after doing some re-wiring to correct the PO's incorrect wire routing , I used the factory schematic and re-wired it to the schematic as I have done before and when I turned the ignition key to Run position the wire on the starter generator light ( the wire that's soldered to the side of the bulb holder ) instantly burned up ! I've been scratching my head over this and can't figure out what the issue could be. According to the schematic , the center wire goes to the "start" terminal of the starter switch and the soldered wire on the side of the bulb holder goes to the "Ignition" terminal of the Ignition switch which is how I put it, so could there be an issue with the Ign. switch or in the bulb holder itself ? 

 

[953 nut 55,209]

33 minutes ago, Horseoholic said:

( the wire that's soldered to the side of the bulb holder )

The light socket for a S/G indication light has two wires connected to the lamp inside but neither of rhen are grounde. There shouldn't have been a wire soldered to the socket.

 This is a correct replacement socket for this application. Cole-Hersee  PL 20 RC

https://shop.advanceautoparts.com/p/cole-hersee-pilot-light-red-lens-12v-53-bulb-supplied-2-4-wire-leads-3-4-diameter-mounting-stem-pl-20-rc000-bx/11044652-p?product_channel=local&store=3217&adtype=pla_with_promotion&product_channel=local&store_code=3217&gclid=CjwKCAjw_YShBhAiEiwAMomsEF9Fg6_DKZ0cPWpbStvpXLbKGj8-7xc1y6Mfs0E0hyU24inkKdtyjxoCwDUQAvD_BwE&gclsrc=aw.ds

[Horseoholic 169]

This here is the same light I have on my 856 & 1057    OEM Wheel Horse NOS 5423 generator light / lamp works | eBay

 

You can see the one wire that's soldered to the side of the holder.

[953 nut 55,209]

Feel free to use any type light socket you choose but if a wire is soldered to the light socket and the light socket is grounded to the dash and you apply 12 volts to the other end of the wire it is going to be a short circuit and will fry the wire. 

Cole Hersee 5423 is also a two lead UNGROUNDED pilot lamp. any questions.

If you feel better about paying $ 90.00 to somebody on  rather than buying the socket at Advance-auto for $ 13 that is your choice.

 https://www.elecdirect.com/cole-hersee-switches/cole-hersee-warning-devices-pilot-lights-panel-lamps-sockets/double-contact-plated-brass-bezel-15-16-faceted-lens-amber-12v-bulb-supplied?geoip=us

Edited March 27, 2023 by 953 nut

[ri702bill 8,316]

25 minutes ago, Horseoholic said:

This here is the same light I have on my 856 & 1057    OEM Wheel Horse NOS 5423 generator light / lamp works | eBay

 

You can see the one wire that's soldered to the side of the holder.

Looks to me that one wire is insulated from the holder and makes contact in the middle with the tip of the bulb base - the other is soldered to the bulb base, not the holder.... time for a continuity check - 

i agree with @953 nut

Edited March 27, 2023 by ri702bill

[squonk 41,089]

I agree. I believe that wire is soldered to an insulated portion of the lamp. If you had that e bay lamp in your hand and checked it with a meter you would find the same. I think whatever insulates the actual lamp socket to the fixture broke down and that's why your wire burned up.

 

Look at that diagram. If the wire from the ign was grounded at the light, it would burn up every time when the key was turned on. 

Edited March 27, 2023 by squonk

[squonk 41,089]

Here is my spare Cole Hersee genny light part # PL-20-RC000-BX

 

 

[ri702bill 8,316]

Seems to work somewhat like an ammeter??? A dim glow when charging, nothing if not charging?? Not used on any of my stuff here - just asking....

[squonk 41,089]

Light goes out when charging. Is bright when just the key on and dims as charging voltage increases. Just like the 60's cars with the GEN light 

[Horseoholic 169]

Just asking ..... the cole hersee light installs the same as the original, one wire to ign. and the other to start on the ignition switch? The light I showed from E-Bay is just as a reference to show what I have, definitely not wanting to pay $90.00 for a light.  

[squonk 41,089]

36 minutes ago, Horseoholic said:

Just asking ..... the cole hersee light installs the same as the original, one wire to ign. and the other to start on the ignition switch? The light I showed from E-Bay is just as a reference to show what I have, definitely not wanting to pay $90.00 for a light.  

Yes it does

[ri702bill 8,316]

4 hours ago, squonk said:

Just like the 60's cars with the GEN light 

I SO do not miss those days. Headlights about as bright as 5 fireflies in a Mason Jar !!! Untill you got to a stoplight....!

[Wayne0 457]

On 3/27/2023 at 12:32 PM, ri702bill said:

I SO do not miss those days. Headlights about as bright as 5 fireflies in a Mason Jar !!! Untill you got to a stoplight....!

Fireflies?, Mason Jars? My God, we're showing our age!

Edited March 28, 2023 by Wayne0

[ri702bill 8,316]

8 minutes ago, Wayne0 said:

Fireflies?, Mason Jars? My God, we're showing our age!

Keep going - 4 wheel drum brakes with no power assist that did not work once you drove thru a puddle  - vacuum wipers that die going up a hill and beat themselves to death on the downslope - non synshconized gears in manual transmissions - cars that only the upper trim level came with backup lights... and i had the middle trim level...

Edited March 28, 2023 by ri702bill