Author Topic: 67 RS headlight motor issue  (Read 316 times)

Dave Caine

  • Newbie
  • *
  • Posts: 8
    • View Profile
67 RS headlight motor issue
« on: August 27, 2018, 03:10:13 PM »
Can someone please point me in a direction?

1967 Rally Sport Headlight door function issue:
Everything is brand new and when I hit the HL switch for the first time, it all worked perfectly. Opened as they should and then closed as they should when commanded.
Next day, I hit it again and the doors opened but kept "cycling" at the "open" limit switch on BOTH sides. Turn it off and they close as they should, no issue.
Tried with key off, HLs on, the doors do this "cycling". Turn HL switch off (w/ key off) and cycling stops, doors stay open as they should until I turn key on (with HLs off) and then doors close as they should.
So its just on the open command.

I found lots of great wiring pics & info in here when I installed everything but I must be searching poorly as I cannot find anything pertaining to this scenario.  Any help would be greatly appreciated.

Thanks in advance!
David
So many cars ... So little time

169INDY

  • Hero Member
  • *****
  • Posts: 528
    • View Profile
Re: 67 RS headlight motor issue
« Reply #1 on: August 27, 2018, 03:53:48 PM »
While I only have Vac power headlight cars, I have a photo copy of a nice troubleshooting guide I can scan (Tonight) & send to you.
I hope it may be helpful, (?not sure?)

JIM
Jim
68 SS/RS L35 Th-400 LOS
69 Pace Car L48 Th-350 LOS
68 Z28 M21 LOS

rick 67

  • Member
  • ***
  • Posts: 87
    • View Profile
Re: 67 RS headlight motor issue
« Reply #2 on: August 27, 2018, 04:10:21 PM »
https://www.facebook.com/rick.barrett.965/media_set?set=a.10151302994429803&type=3&fb_dtsg_ag=AdzNr_1Xhku8aeeN7V_Hfy6aDA1whFli0GtVe_WirD5MjA%3AAdxKA3j_k8umybwEVpOP_KLa1k76YRhqy0meucB7jGYqWg

Check the double bounce in the retro electric trouble shooting part. Another cause could be both doors not making full contact with the open limit switch. Some shimming of the switches may be required.

 Rick

maroman

  • Hero Member
  • *****
  • Posts: 733
    • View Profile
Re: 67 RS headlight motor issue
« Reply #3 on: August 27, 2018, 04:11:01 PM »
As suggested use the GM trouble shooting guide. It works, and tells you what order to check things in.
Doug  '67 RS/SS 396 auto I know the car since new

Dave Caine

  • Newbie
  • *
  • Posts: 8
    • View Profile
Re: 67 RS headlight motor issue
« Reply #4 on: August 27, 2018, 04:42:34 PM »
I have the assembly manual and two small instructional booklets, one is for 1967 Camaro wiring and the other is specifically for RS HL wiring and it has a trouble shooting guide but regarding this, simply says a switch is bad. But I'd be happy to read anything pertaining to this type of issue so please forward or tell me where to find.
It worked, and then stopped and its both sides on the same motion. Heck of a coincidence.
I physically engaged the limits switches and it did not stop the "cycling".

Rick67, I had found that link in my earlier searches and those pics were very helpful on initial assembly! I was amazed at how easily everything fell into place. I looked up the trouble shooting chart and it says:
"Double bounce is usually caused by slop in the door bushings or slop in the drive washers. This will not damage the Retro Electro motors." Everything is brand new, bushings, bolts, etc ... the doors are nice and snug and have no extra play. The actuating arms also have no play. I moved everything manually during set up to ensure everything was aligned properly and all four switches were engaging, and it worked perfectly ... once.
So many cars ... So little time

Kelley W King

  • Hero Member
  • *****
  • Posts: 940
    • View Profile
Re: 67 RS headlight motor issue
« Reply #5 on: August 27, 2018, 05:31:36 PM »
It has been too long ago for me to help. Now you know why you see so many with the doors open all the time.
69 Z28 RS Scuncio Hi Performance
69 SS L78
67 SS Chevelle
64 Corvette
66 GTO Tiger Gold
77 Trans Am Special Edition

rick 67

  • Member
  • ***
  • Posts: 87
    • View Profile
Re: 67 RS headlight motor issue
« Reply #6 on: August 27, 2018, 06:18:11 PM »
I have the assembly manual and two small instructional booklets, one is for 1967 Camaro wiring and the other is specifically for RS HL wiring and it has a trouble shooting guide but regarding this, simply says a switch is bad. But I'd be happy to read anything pertaining to this type of issue so please forward or tell me where to find.
It worked, and then stopped and its both sides on the same motion. Heck of a coincidence.
I physically engaged the limits switches and it did not stop the "cycling".

Rick67, I had found that link in my earlier searches and those pics were very helpful on initial assembly! I was amazed at how easily everything fell into place. I looked up the trouble shooting chart and it says:
"Double bounce is usually caused by slop in the door bushings or slop in the drive washers. This will not damage the Retro Electro motors." Everything is brand new, bushings, bolts, etc ... the doors are nice and snug and have no extra play. The actuating arms also have no play. I moved everything manually during set up to ensure everything was aligned properly and all four switches were engaging, and it worked perfectly ... once.

  David so you had initial success. I am electrically challenged so this was a big project. Mine were all there but unhooked and the switches in the glove box the relays all unplugged and all the wires tucked away so you couldn't see them. A daunting task. I had a wiring diagram in the paperwork I received that was from two previous owners ago. Yeah pretty alien to me. So I started searching and found Team Camaro and GRG. Through different threads I found bits an pieces of info. Finally figuring out where everything went. I documented and took pics as I put mine together. My first assumption was that I would get them back together and they wouldn't work. But lo and behold both doors opened but kept running. (familiar) The most common problem with the doors are bad grounds and the doors not fully activating the switches. Everything to do with your headlights right to the high beam switch can cause the doors to malfunction. Even a burnt out high beam can cause problems. That being said check all the grounds,  switches, headlights. hope you used the star washers as they bite into the metal. Next is switch contacts. (this was my problem) With someone else on the headlight switch turn them on. When opened and still running push the door firmly against the open switch. If it stops then the switch or switches need some adjustment. Mine have been trouble free for 6 years so that is as far as I ever had to go.

Rcik

rick 67

  • Member
  • ***
  • Posts: 87
    • View Profile
Re: 67 RS headlight motor issue
« Reply #7 on: August 27, 2018, 06:19:34 PM »
Oh it took about 14 hours to fine tune them over two days.

Rick

Dave Caine

  • Newbie
  • *
  • Posts: 8
    • View Profile
Re: 67 RS headlight motor issue
« Reply #8 on: August 27, 2018, 07:54:54 PM »
Thanks Rick!
Grounds always seem to be the "go to" on this thing. they have bit me before and are possibly biting again. I'll check it out for sure.
So many cars ... So little time

bergy

  • Member
  • ***
  • Posts: 158
    • View Profile
Re: 67 RS headlight motor issue
« Reply #9 on: September 05, 2018, 11:15:43 AM »
I had the same problem with the doors "bouncing" against the radiator support limit when light switch was turned on.  Just needed to tighten up the nut on the friction washer (the passenger side was the problem for me) so that the door stayed pressed against the limit switch.  Not sure if that's your issue, but it seemed to solve my problem.