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Re: “Winking Headlights” [Re: 47PUJim] #1289561
Sat Dec 01 2018 08:09 PM
Sat Dec 01 2018 08:09 PM
Tiny  Online
Global Mod
Joined: Aug 2005
Posts: 8,425
South Central Kansas
Bad grounds will make lights do some strange things, especially on a six volt system.


Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
Re: “Winking Headlights” [Re: 47PUJim] #1289583
Sun Dec 02 2018 12:37 AM
Sun Dec 02 2018 12:37 AM
C
cmayna  Online
Shop Shark
Joined: Jan 2002
Posts: 1,824
Menlo Park, Ca
If your truck had eyebrows,,,,,,,,then I would worry about it winking at you.


Craig's '50 Chevy 3100 5 window
My truck
If I'm not working on my truck or VW camper, I'm fishing with the wife or smoking Salmon.
Re: “Winking Headlights” [Re: 47PUJim] #1290124
Thu Dec 06 2018 10:27 PM
Thu Dec 06 2018 10:27 PM
4
47PUJim  Offline OP
Shop Shark
Joined: Dec 2013
Posts: 174
Green Bay, Wisconsin
Here’s the latest from the “winking lights”.
I upgraded my battery cables to the frame and starter with 1/0 cable. Couldn’t locate 0/0.
Then I cleaned grounds. Tried to resolve the problem as per the above suggestions.
Jerry, following your suggestion, did disconnect one sides ground. Darn other headlight was brighter than the sun off my large forehead! Now I must figure out how to clean/establish a better ground the the dim headlight.
However I’ve opened another can of worms......seems now, according to the indicator light on the speedo, I have NO headlights on low beams. When I ran a test light on hi beam it’s barely lit. Same light on lo beam is brighter. Could that reflect then the original light switch is a factor in this also? I’ll Check with the meter in a bit.
Back to the ole drawing board!
Like the mechanic set, “ it’s not acting up now, bring it in the next time it happens........”. Haha

Re: “Winking Headlights” [Re: 47PUJim] #1290132
Thu Dec 06 2018 11:26 PM
Thu Dec 06 2018 11:26 PM
H
Hotrod Lincoln  Online
Boltergeist
Joined: Feb 2004
Posts: 17,870
Dellrose, TN
It's possible somebody in the past has mixed up the wiring where the wrong prong of the 3-pin headlight connector is attached to ground on at least one side. When you're looking at the connector plug on the back side of the headlight, the center pin is NOT the ground. I don't remember offhand which one of the side connectors is, but it's pretty easy to figure out.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: “Winking Headlights” [Re: 47PUJim] #1290136
Fri Dec 07 2018 12:23 AM
Fri Dec 07 2018 12:23 AM
4
47PUJim  Offline OP
Shop Shark
Joined: Dec 2013
Posts: 174
Green Bay, Wisconsin
Jerry,
I think that’s likely what happened. I was looking at the ‘47 manual & its wiring diagram and it looks as if the middle connector IS the ground. Anyhow I switched two connections and things worked out.....AFTER I shot some Radio Shack Electronics Cleaner into the original light switch. I knew the rheostat was bad as the dash lights needed massaging before they would light. I sprayed a “liberal amount” into the switch. Then I vigorously opened and closed the switch, meanwhile activating the rheostat.
The result......LIGHTS! So looks as the light switch should be replaced soon. Both the hi and low are lit. One low beam isn’t as bright but I can chase down that easily with a meter.
Thank you and everyone who took time to offer solutions!
The ole girl ain’t “winking” no more! :-)

Re: “Winking Headlights” [Re: 47PUJim] #1290139
Fri Dec 07 2018 01:04 AM
Fri Dec 07 2018 01:04 AM
H
Hotrod Lincoln  Online
Boltergeist
Joined: Feb 2004
Posts: 17,870
Dellrose, TN
Another potential problem with dim or inoperative headlights is the dimmer switch. It's down there in a very wet, dirty, salty, and generally hostile environment. I like to use the headlight switch and dimmer to carry very low amperage to switch relays on and off for the main headlight current. That setup makes regular lights noticeably brighter, and it's just about a necessity when an upgrade to halogen or high output LED headlights is done.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: “Winking Headlights” [Re: 47PUJim] #1291896
Fri Dec 21 2018 08:02 AM
Fri Dec 21 2018 08:02 AM
4
47PUJim  Offline OP
Shop Shark
Joined: Dec 2013
Posts: 174
Green Bay, Wisconsin
A follow up to this dilemma:
As stated, I initially made 2 battery cables of 1/0 cable. I made sure I ground the frame to bare metal and even used a star washer as overkill. Then I waterproofed the outside of the connection.
Then I used a meter and traced all wires. Following all suggestions, I determined that two wires were switched by the PO. Once I made the switch, PRESTO! Yep, bright lights.
Then I went and cleaned all wire connections on the splash shield terminals. I did find one loose clip. The wire literally was pulled from the split clip. I replaced the clip.
Went to the fuse box and removed the wire connections and thoroughly cleaned all connections.
BEWARE....if you have original wires as I, the wires covers were very brittle. Had to do some repairing. A new harness is on the agenda.
Finally I decided to eliminate two other potential problems. Ordered a new light and dimmer switch.
Again, thank to everyone for. Your help!

Re: “Winking Headlights” [Re: 47PUJim] #1291907
Fri Dec 21 2018 02:15 PM
Fri Dec 21 2018 02:15 PM
tclederman  Offline
Boltergeist
Joined: Sep 2001
Posts: 27,310
Jarvisburg, NC
Thanks for the follow-up report.

We should remember your post, and link to it, when future members talk about poor starting and weak "winking" lights.

Congratulations.


Tim
1954Advance-Design.com
1954 3106 Carryall Suburban - part of the family for 50 years
1954 3104 5-window pickup w/Hydra-Matic - part of the family for 14 years
Z-series (54/55) GMC 350 (2-ton) COE - now part of Dave's family
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engine are not "splash oilers" - this is a splash oiler.
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