Head light bounce.
Thread Starter
Cruising
Joined: Jun 2006
Posts: 13
Likes: 0
Head light bounce.
Both of my head light doors on my 1977 corvette open and close. Thank god.
But my left door bounces up and down then you are going down the road, and you can push the door down with your hand. Can someone tell me exacly what is wrong and how to fix it? Thank you
But my left door bounces up and down then you are going down the road, and you can push the door down with your hand. Can someone tell me exacly what is wrong and how to fix it? Thank you
Race Director
Joined: Sep 2001
Posts: 10,560
Likes: 439
From: Wellington, FL
St. Jude Donor '11 thru '25
It sounds like you have some loose attachment bolts. Have a look and you'll probably see the problem. I wouldn't wait too long as you may start to lose some parts.
Le Mans Master
Joined: Jul 2006
Posts: 8,117
Likes: 104
From: charlotte north carolina
the light should lock in the up position. see if you can push it up enough to lock it manually once is it open, if you can, the actuator may be going bad, or may need to be adjusted. the actuator rod pushes the hinge link, and if the stop screw has moved, it may not allow complete extension. it's not as complicated as it looks, but the hard part is getting to these pieces, and if you have to do any amount of work on these assemblies, you'll find that they're generally rusted. you will have to remove the grill for access if major work is needed.
jeff
jeff
Racer
Joined: Jul 2004
Posts: 286
Likes: 1
From: Mesa az
The headlight is designed to "lock" when it's open. Once open it may vibrate a bit and has a "stop" bracket and adjustment on the outside of the light body. It's a long simple steel bracket that has a bolt/lock nut/bumper on it that should be adjusted to hold the light body firmly against the light frame that's mounted to the car body.
If the light body is firmly open, but just vibrating then the adjustment should fix the problem. If the body isn't fully opening and locked, then I'd look at the springs/levers that move the light body. One of the springs may have broken.
If the light body is firmly open, but just vibrating then the adjustment should fix the problem. If the body isn't fully opening and locked, then I'd look at the springs/levers that move the light body. One of the springs may have broken.
Drifting
Joined: Jan 2004
Posts: 1,991
Likes: 3
From: Piscataway NJ
the light should lock in the up position. see if you can push it up enough to lock it manually once is it open, if you can, the actuator may be going bad, or may need to be adjusted. the actuator rod pushes the hinge link, and if the stop screw has moved, it may not allow complete extension. it's not as complicated as it looks, but the hard part is getting to these pieces, and if you have to do any amount of work on these assemblies, you'll find that they're generally rusted. you will have to remove the grill for access if major work is needed.
jeff
jeff
Le Mans Master
Joined: Jul 2006
Posts: 8,117
Likes: 104
From: charlotte north carolina
with the light in the up position, locate the hinge link and try to push it forward to it's lock position. if you can do this, you have to determine why the actuator isn't pushing the link far enough. try holding the actuator rod with plyers and moving the rod forward. if you can't push the link manually, check the stop limit screws. i really don't think the screws have moved (nature's locktight-rust). i think the problem is with the actuator. check the vaccum system for leaks, cracked hoses or broken seals. it may be time to rebuild the actuator. it's not difficult to rebuild, but removing it is a bear.
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Advanced
Joined: Dec 2007
Posts: 55
Likes: 0
From: Sugar Land TX
Had the same problem with my 68. Just adjust the stop screw, easy fix. While your under the nose, check out the springs also. More than likely you will have at least one broken.
