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Home » Public Forums » GMCnet » How to adjust headlights (Looking for a quick tutorial on how to properly adjust headlights)
How to adjust headlights [message #226602] Tue, 22 October 2013 15:09 Go to next message
MichaelP is currently offline  MichaelP   United States
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Registered: October 2012
Location: Ohio
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Yes, I know, this is likely something anyone should know, but we're about to cross this grand country of ours and our driver's side headlight has decided to get lazy and point too far to the right. I took apart the cowling and saw all the screws, some square heads, one phillips. If my memory serves me from back in the seventies there's a main bracket that holds the headlight in place, and the others are for adjustment. Just want to make sure I'm doing this right. Anyone have a link to a how-to on this, or a quick description before I start messing with it? And feel free to use any patronizing comments, for I surely deserve it on this one! Smile
Re: How to adjust headlights [message #226606 is a reply to message #226602] Tue, 22 October 2013 15:48 Go to previous messageGo to next message
Harry is currently offline  Harry   Canada
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Registered: October 2007
Location: Victoria, BC CANADA
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Senior Member
Park the coach about 15' from a wall or garage door, turn on the headlights, start adjusting screws until you are happy.
Oh...park with the lights shining on the wall or garage door, not parallel parked.... Rolling Eyes
Re: How to adjust headlights [message #226610 is a reply to message #226606] Tue, 22 October 2013 16:15 Go to previous messageGo to next message
MichaelP is currently offline  MichaelP   United States
Messages: 65
Registered: October 2012
Location: Ohio
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haha! Laughing thanks!
Re: [GMCnet] How to adjust headlights [message #226612 is a reply to message #226602] Tue, 22 October 2013 16:28 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
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Registered: July 2007
Location: Sydney, Australia
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Senior Member
G'day,

Click on the link below which will take you to the area where you can download the GMC Maintenance Manual;

http://www.bdub.net/factory-manuals.html

Click on the link for manual X-7525

When it downloads save it to your hard drive.

Once it's saved open it up and click on section 8 Chassis Electrical

The index will come up and click on: Headlight Adjustment 12-22

There are photos and line drawings showing the screws to adjust.

Here's a link to a procedure that tells you how to adjust them:

http://www.wikihow.com/Adjust-Car-Headlights

Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
USA '75 Avion - Double Trouble TZE365V100426
AUS '75 Avion - The Blue Streak TZE365V100428

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Michael Pisano
Sent: Tuesday, October 22, 2013 3:09 PM
To: gmclist@temp.gmcnet.org
Subject: [GMCnet] How to adjust headlights

Yes, I know, this is likely something anyone should know, but we're about to cross this grand country of ours and our driver's side
headlight has decided to get lazy and point too far to the right. I took apart the cowling and saw all the screws, some square
heads, one phillips. If my memory serves me from back in the seventies there's a main bracket that holds the headlight in place,
and the others are for adjustment. Just want to make sure I'm doing this right. Anyone have a link to a how-to on this, or a quick
description before I start messing with it? And feel free to use any patronizing comments, for I surely deserve it on this one! :)

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] How to adjust headlights [message #226613 is a reply to message #226602] Tue, 22 October 2013 16:30 Go to previous message
Dave Mumert   United States
Messages: 272
Registered: February 2004
Location: Olds, AB, Canada
Karma: 0
Senior Member
Hi

Here are a couple of links (with pictures) that show how it is done.

http://www.coolbulbs.com/HID-VISUAL-HEADLIGHT-AIMING-PROCEDURE.pdf
http://www.f150online.com/forums/2004-2008-f-150/406485-how-re-aim-your-head
lights.html

Dave Mumert

> -----Original Message-----
> Subject: [GMCnet] How to adjust headlights
>
> Yes, I know, this is likely something anyone should know, but we're about
to
> cross this grand country of ours and our driver's side headlight has
decided to
> get lazy and point too far to the right. I took apart the cowling and saw
all the
> screws, some square heads, one phillips. If my memory serves me from back
> in the seventies there's a main bracket that holds the headlight in place,
and
> the others are for adjustment. Just want to make sure I'm doing this
right.
> Anyone have a link to a how-to on this, or a quick description before I
start
> messing with it? And feel free to use any patronizing comments, for I
surely
> deserve it on this one! :)
>

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