C3 Headlight Vibration
Thread Starter
6th Gear
Joined: Oct 2013
Posts: 6
Likes: 0
From: Garner NC
C3 Headlight Vibration
Hey guys...have a 75 and the right side headlights "bounce" due to vibration something fierce. The left side is solid...any suggestions to adjust/firm it up? Thanks a bunch! Rick
Melting Slicks
Joined: Jul 2009
Posts: 3,264
Likes: 3
From: Vero Beach FL
There is a bar on the side of the headlight bracket that has a screw and a nut on the end of it. When the headlights are up the screw should be adjusted so that it makes contact with the bracket holding it firm. I believe from the factory the screw where covered with a rubber cushion.
http://www.zip-corvette.com/ProductD...GR-SR&CTitle=&
http://www.zip-corvette.com/ProductD...GR-SR&CTitle=&
Team Owner
Joined: Sep 2006
Posts: 31,316
Likes: 4,422
From: Westminster Maryland
Hi jump,
Roco's got the likely answer.
In addition the headlight mechanism needs to open completely to go into the 'lock' position. IF you can push the door closed without reaching underneath to release the mechanism the door isn't fully open.
If you can't move it it's likely Rocco's 'stop'.
Sometimes the rubber bumper has fallen off the bolt.
Good Luck!
Regards,
Alan
Roco's got the likely answer.
In addition the headlight mechanism needs to open completely to go into the 'lock' position. IF you can push the door closed without reaching underneath to release the mechanism the door isn't fully open.
If you can't move it it's likely Rocco's 'stop'.
Sometimes the rubber bumper has fallen off the bolt.
Good Luck!
Regards,
Alan
Thread Starter
6th Gear
Joined: Oct 2013
Posts: 6
Likes: 0
From: Garner NC
Thanks Rat and Alan...I saw a nice C3 one day right at dusk...and one headlight was doing the huckle-buck...I thought what a shame....now I have one doing the same thing! LOL
I can move the mechanism up/down a little...but its definitely firm enough that I can't push down by hand. I replaced both actuators and relays...could I have misadjusted something as well?
I can move the mechanism up/down a little...but its definitely firm enough that I can't push down by hand. I replaced both actuators and relays...could I have misadjusted something as well?
Pro
Joined: Jan 2001
Posts: 511
Likes: 66
From: Timnath, CO
There is a bar on the side of the headlight bracket that has a screw and a nut on the end of it. When the headlights are up the screw should be adjusted so that it makes contact with the bracket holding it firm. I believe from the factory the screw where covered with a rubber cushion.
http://www.zip-corvette.com/ProductD...GR-SR&CTitle=&
http://www.zip-corvette.com/ProductD...GR-SR&CTitle=&
I had the same problem and doing this adjustment fixed it.
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Melting Slicks
Joined: Jul 2009
Posts: 3,264
Likes: 3
From: Vero Beach FL
Hi jump,
Roco's got the likely answer.
In addition the headlight mechanism needs to open completely to go into the 'lock' position. IF you can push the door closed without reaching underneath to release the mechanism the door isn't fully open.
If you can't move it it's likely Rocco's 'stop'.
Sometimes the rubber bumper has fallen off the bolt.
Good Luck!
Regards,
Alan
Roco's got the likely answer.
In addition the headlight mechanism needs to open completely to go into the 'lock' position. IF you can push the door closed without reaching underneath to release the mechanism the door isn't fully open.
If you can't move it it's likely Rocco's 'stop'.
Sometimes the rubber bumper has fallen off the bolt.
Good Luck!
Regards,
Alan
Is the rubber bumper in your photo on the screw head the same rubber bumper used on the hood latch on a 71?
Thanks, Scott