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[GMCnet] DIY alignment, another version [message #138002]

Mon, 08 August 2011 09:06

glwgmc

Messages: 1014
Registered: June 2004

Karma:

Senior Member

Hi Gene,

I am working on a group buy for turn plates that should work out to be about $90 a pair. I will let everyone know when I receive one pair and confirm that they are of good enough quality to use with our coaches. Any digital level with a reset to zero function and a spec of +- 0.1 degrees will be fine so long as you fabricate some kind of a standoff to allow the level to register at two, three or four points around the perimeter of the rim over the top of the lug nuts and center caps. With that simple set up and a tape measure the owner can measure everything, but do so in the order of tire pressure, ride height, caster (need the turn plates), camber and toe. With proper safety precautions it appears you can set everything with the tires on the ground as the weight is carried primarily via the lower A arms leaving the upper A arms only lightly loaded and you are only going to move them a small amount right at the pivot points.

Without turn plates your suggested process is correct if you do it in the order of tire pressure, ride height, max caster (pull the back of the upper A arm as far towards the center of the coach as possible), camber (adjusted by moving the front of the upper A arm in and out until the rim is perpendicular to the level floor on which the coach is sitting), and toe. Drive the coach and do it again. The issue will be that you will not necessarily achieve maximum EQUAL camber as you can using the turn plates.

Jerry
Jerry Work
The Dovetail Joint
Fine furniture designed and hand crafted in the 1907 former Masonic Temple building in historic Kerby, OR
Visitors always welcome!
glwork@mac.com
http://jerrywork.com
541-592-5360

Founder of the Southern Oregon Guild
www.southernoregonguild.org
Member of the Siskiyou Guild
www.siskiyouguild.org

Message: 17
Date: Mon, 8 Aug 2011 05:40:54 -0700
From: gene Fisher <mr.erfisher@gmail.com>
Subject: Re: [GMCnet] DIY alignment, another version
To: gmclist@temp.gmcnet.org
Message-ID:
<CADg-sf_6zTGsiP71x=EnnijiCem8TVTY0_7cHkqQSGVxQjdd=g@mail.gmail.com>
Content-Type: text/plain; charset=windows-1252

I am still trying to follow this:

so if you do not want to calculate the caster ( just set to max)

you do not need a rotation plate - is that correct?

just park on a level surface
center the steering
set the height (by the book)
set the tow in = 0 ( measure f/ b from a good tread)
set the camber = 0 (use a digital level across the rim)
set the caster at = max (set the offset bushings)

drive the GMC 10 miles
and do it again.

This is "necessary and sufficient" for the GMC?

gene

>
> Just another version of a turnplate for the DIY alignment guys.
>
> http://www.arkansaspontiacs.org/techstories/turnplates/turnplates.html
>
> Bob Drewes in SESD
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Jerry Work
The Dovetail Joint
Fine furniture designed and hand crafted in the 1907 former Masonic Temple building in historic Kerby, OR
Visitors always welcome!
glwork@mac.com
http://jerrywork.com
541-592-5360

Founder of the Southern Oregon Guild
www.southernoregonguild.org
Member of the Siskiyou Guild
www.siskiyouguild.org

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Jerry & Sharon Work
78 Royale
Kerby, OR

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[Message index]

		[GMCnet] DIY alignment, another version By: glwgmc on Mon, 08 August 2011 09:06
		Re: [GMCnet] DIY alignment, another version By: Ken Henderson on Mon, 08 August 2011 09:15
		Re: [GMCnet] DIY alignment, another version By: Mr ERFisher on Mon, 08 August 2011 10:01
		Re: [GMCnet] DIY alignment, another version By: KB on Mon, 08 August 2011 13:24
		Re: [GMCnet] DIY alignment, another version By: rvanwin on Mon, 08 August 2011 15:45
		Re: [GMCnet] DIY alignment, another version By: KB on Mon, 08 August 2011 18:35
		Re: [GMCnet] DIY alignment, another version By: rvanwin on Mon, 08 August 2011 20:16
		Re: [GMCnet] DIY alignment, another version By: KB on Tue, 09 August 2011 14:52
		Re: [GMCnet] DIY alignment, another version By: Craig Lechowicz on Wed, 10 August 2011 20:55
		Re: [GMCnet] DIY alignment, another version By: rvanwin on Wed, 10 August 2011 21:09

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