84 headlight question
Thread Starter
Intermediate
Joined: Apr 2012
Posts: 37
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From: Pittsburgh PA
84 headlight question
Hi, Here's an interesting one-put new gears in left headlight-it opens and closes now fine with hood open - if hood is closed the left headlight opens but motor keeps running-won't do it if hood is open-a little baffling. I disconnected the motor connection again and am thinking may just replace the motor with a whole new assbly. Wiring and connections look good and everything's fine if hood open. Also, when I split case halves I didn't touch the motor.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
There are switch contacts inside the headlight motor that control which direction it turns. Your problem might be in that area. There is a second set of contacts on the right hidden under the motor brush:
The motor shaft moves back and forth when the headlight hits the stops. That's what does the switching. On my car there are three relays mounted next to the vacuum tank that make all this happen. Later years had a module that used a different method. I don't know how the '84s are set up.
The relays are under this cover:
The motor shaft moves back and forth when the headlight hits the stops. That's what does the switching. On my car there are three relays mounted next to the vacuum tank that make all this happen. Later years had a module that used a different method. I don't know how the '84s are set up.
The relays are under this cover:
Last edited by Cliff Harris; May 12, 2014 at 02:03 AM.
Safety Car
Joined: Sep 2004
Posts: 3,953
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From: Mission Viejo CA
Thread Starter
Intermediate
Joined: Apr 2012
Posts: 37
Likes: 0
From: Pittsburgh PA
Thanks guys, I ordered a new left motor assbly today ($260) and I'll isntall that later in week - I did take that cover off and looked at relays-wires all look good everywhere-low miles car- I may put a new relay in , too since they're not expensive. I'll let you know what happens-right side works perfectly.
Thread Starter
Intermediate
Joined: Apr 2012
Posts: 37
Likes: 0
From: Pittsburgh PA
Got new left side motor from Corvette Central ($260) and installed it-end of problem-I got a new motor so I could keep my old one and do a post mortem on it and see if I can fix it. Got a new relay , too but didn't need it -at least I have one around for future trouble shooting.
