| [GMCnet] Torsion bar unloader [message #153875] |
Wed, 21 December 2011 07:56  |
glwgmc
Messages: 1014
Registered: June 2004
Karma:
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Senior Member |
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One difference I found between the original and the copies is that the U portion on the original seems to hold its shape (hardened?) so is easy to slip on/off of the heavy bar making it easy to put on and take off while under the coach. The U portion on the copies tend to bend (the U collapses a bit) under use and can be a bear to get on and off. Could that be an unintended consequence of welding the locater tip onto the U and softening the U at that point? One other issue I have found with the copies is if the bar is not straight (parallel with the cross member), or is cocked side to side then the U may also bend laterally as well and that exacerbates the issue for the next user. The original seems immune to both of these conditions.
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
www.southernoregonguild.org
www.siskiyouguild.org
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Message: 19
Date: Tue, 20 Dec 2011 20:41:06 -0600
From: Larry <weidnerl@wwt.net>
Subject: Re: [GMCnet] Torsion bar unloader
To: gmclist@temp.gmcnet.org
Message-ID: <258da.4ef14741@gmc.mybirdfeeder.net>
Content-Type: text/plain; charset="ISO-8859-15"
Bob de Kruyff wrote on Tue, 20 December 2011 20:05
> ""Bob,
>
> Here's a picture of the one Larry made.
>
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=9162
>
> The "U" bolt I bought has much longer "legs" on it which would allow a "taller" block. Unfortunately I've thrown the box away and
> can't remember where I bought it.
>
> ""
>
> Any words of wisdom regarding the "through bolt" hardness and nut? I'm assuming a grade 8 bolt is a minimum. I vaguely recalled when I used one before that the bolt thread was galling.
The nut is a grade 8, and I'm assuming the bolt is also. I found that I had to lube it good with a synthetic grease or it would gall. The nut also had to be welded all of the way around. At first it was just tacked in place, but that tack broke on the second or third use. The "U" bolt I picked up at my local "Fleet Farm" supply, but can be had at any auto supply store. Then you have to weld a little "tit" on it so it stays in place on the frame. JWID
--
Larry :)
78 Royale w/500 Caddy
Menomonie, WI.
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Jerry & Sharon Work
78 Royale
Kerby, OR
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