Re: [DML] Re: Driver Side Torsion Unit
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Re: [DML] Re: Driver Side Torsion Unit



Jake,

In short, I don't know. Based upon the picture of Heninger bar, it seems to have a much different design than the original bar.  I  don't know how the dynamic range (degree twist/torque curve ...possibly non linear or wider range)  and other characteristics differs from the original bar but assume that they are different and could be quite different. 
 
If the Heninger bar has very similar characteristics  such as torque/degree twist curve among the others characteristics then I would agree that it is bad to have a bar installed the way it was suggested and that it could cause other problems.
 
I do know (that is if I recall correctly) that with an original torsion  bar (when properly adjusted) and with no strut on the door that the door is only suppose to open a few inches say 3-6 inches which (to me) indicates that the strut plays a significant role in opening the door(with the original bar).

The specifications, engineering details and analysis of the bar need to be provided/explained otherwise its hard to draw conclusions.

It was nice that Lawrence supplied the specifications, QA test info, and even a comparison to the original with his bar. Hopefully, Heninger will release more information in the future as I can't tell much from a picture other than it looks different.


Dan


________________________________
From: Jake Kamphoefner <jakekamp@xxxxxxx>
To: dmcnews@xxxxxxxxxxxxxxx
Sent: Monday, September 21, 2009 2:14:18 PM
Subject: Re: [DML] Re: Driver Side Torsion Unit

  

Dan, 

Then do you also agree that it is bad to have a bar installed the way the Byrne suggested? That's all any of us have been saying all along: Putting a bar in to compensate for the strut, no matter who the manufacturer, is a bad idea and will eventually cause other problems. I think we are just surprised that Byrne, as a vendor,would even suggest doing so.

If Byrne's bar still works at the level of originally-designed tension, I see no problem with it.

Jake
1063 - original bars - 105,000 miles (thank God!)

____________ _________ _________ __
From: Daniel Plakosh <dplakosh2@yahoo. com>
To: dmcnews@yahoogroups .com
Sent: Saturday, September 19, 2009 2:31:56 PM
Subject: Re: [DML] Re: Driver Side Torsion Unit

Dave.

I agree turning the bar up higher (tighter) to overcome a weak strut is bad and that struts are cheap, torsion bars and hinges are not. I also agree that if struts date-stamped sometime in the mid-80s and door actually works, that the bar is probably turned up too high to compensate for a weak strut. However, I'm not sure that all of this would be true with a bar that has a different/new design from the original.

Dan 

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