I heard from previous post WD40 helped--might want to do a search--regards camber 
Headlamp Open Speed
Team Owner
Joined: Sep 2006
Posts: 31,301
Likes: 4,389
From: Westminster Maryland
Hi M70,
I believe your 70 has 2 headlight relays, 1 for each headlight actuator.
So your slow passenger's side headlight door could be caused by the relay or the actuator.
Since it does open, I'd think it could well be the seals in the actuator, which can be replaced. If you have a vacuum source and gauge (like a Mighty-Vac) you can test the relay and actuator and determine what's going on.
Sometimes.... just cutting a 1/2" off the ends of the hoses improves the seal and MIGHT fix your slow light.
Regards
I believe your 70 has 2 headlight relays, 1 for each headlight actuator.
So your slow passenger's side headlight door could be caused by the relay or the actuator.
Since it does open, I'd think it could well be the seals in the actuator, which can be replaced. If you have a vacuum source and gauge (like a Mighty-Vac) you can test the relay and actuator and determine what's going on.
Sometimes.... just cutting a 1/2" off the ends of the hoses improves the seal and MIGHT fix your slow light.
Regards
Safety Car
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
I put new seals in both of my headlight actuators and the left one opens a little before the right one. I'll probably spray some lube onto the valve rods to see if that helps but as long as they both open and close I'm happy. I have more important things to fix at the moment.
Rick B.
Rick B.
Racer
Joined: Dec 2009
Posts: 260
Likes: 1
From: Los Angeles CA
i have the same deal on my '80, but opposite (passenger side opens first, then driver's side). it's one of the next issues i want to try to fix (even with my limited mechanical skills).
this previous post i spotted may be of help:
this previous post i spotted may be of help:
"Lazy headlights? Here's a tip"
http://forums.corvetteforum.com/c3-t...res-a-tip.html
http://forums.corvetteforum.com/c3-t...res-a-tip.html
Last edited by VetteHalen; May 20, 2010 at 02:22 PM.
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Michael S. Palmer
Racer
Joined: Apr 2008
Posts: 333
Likes: 0
From: Portage Michigan
My driver's side goes down last, but I'm not so sure how they work when going up. Both headlights are routed through the drivers side actuator...I think. I don't know if that plays a factor, but it's a thought.
Melting Slicks
Joined: Jan 2010
Posts: 2,416
Likes: 8
From: Charlotte (Area) North Carolina
St. Jude Donor '11-'12-'13-'14
NCM Sinkhole Donor
I put new seals in both of my headlight actuators and the left one opens a little before the right one. I'll probably spray some lube onto the valve rods to see if that helps but as long as they both open and close I'm happy. I have more important things to fix at the moment.
Rick B.
Rick B.
Navigator
Joined: Sep 2009
Posts: 9
Likes: 0
Greetings, sorry for a late reply but I was looking for some actuator answers and came across your post. I have a '71 vert. I recently picked up some parts from Dr Rebuild and like their products. Seems to me that repairing the vacuum system is more tedious than anything. I'm in the middle of wipers and headlights right now but must say that the guide to headlight repair put out by Dr R is straight forward and takes a lot of the mystery out of this endeavor. Also, they put out a "placemat" looking embossed diagram that sheds a lot of light on your project and makes diagnosis/hose routing a lot easier. I tracked down my right headlight problem in no time. Good luck with yours.
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,482
From: Southbound
Cruise-In II Veteran
