[DML] Re: Driver Side Torsion Unit

["twinenginedmc12" <twinenginedmc12@xxxxxxxxxxxxxxxxx>]

The hinges that are failing are likely failing from the following corrosion related causes:

galvanic corrosion from being connected to the stainless torsion rod,

fretting from the relative motion of the hinge and rod.

moisture collecting in the gap between hinge and rod.

When I dismantled my car in 1999 or so, it showed all of these issues, in the form of a rusty, deformed, oversize gap.  Interestingly, only one side had this problem.  Don't know why.  Sandblasting, painting, and filling the gap seems to have permanently cured it.  It definitely would have failed eventually.

Mechanically, the hinges are much less stressed than the torsion bars.  

If your hinge shows rust, and you can't dismantle it, oiling it will help prolong its life.

Rick.


--- In dmcnews@xxxxxxxxxxxxxxx, Daniel Plakosh <dplakosh2@...> wrote:
>
> Martin,
> 
> There could be many causes for the hinge failures (such as hinges that have voids in the metal in some spots - could be a manufacturing defects that  got through QA). These hinges may fail regardless of which torsion bar is used. Unfortunately, I've seen many times that common sense does not prevail. People believed the earth was flat too.  Common sense still to some regardless of the truth. You act as if torsion bars are not adjustable.   How do know that these torsion bars installed properly result in enough added force that it puts an additional twist on the door ? Do you have one of these bars ?  Have you installed one these bars and tried it?  Or is this just more speculation? Yes, I need figures to backup claims or perhaps some quoting actual experience or history with this bar.
> 
> Dan 
> 
>  
> 
> 
> 
> ________________________________
> From: Martin Gutkowski <martin@...>
> To: dmcnews@xxxxxxxxxxxxxxx
> Sent: Friday, September 18, 2009 2:25:27 PM
> Subject: Re: [DML] Re: Driver Side Torsion Unit
> 
>   
> I think you should take the original claim to task, not Dave's reply. He 
> was simply stating that to use the torsion bar to do more of the work is 
> a bad idea given the failures of front door hinges on original bars, and 
> the added "twist" then placed on a door. Do you really need figures to 
> back that up? Sounds like common sense to me.
> 
> Martin
> 
> Daniel Plakosh wrote:
> > <snip> I assume that these are all rhetorical questions. My point is : Why make the statement about someones product without the facts to backup the claims? Believing and knowing are two different things!
> >
> > Dan
> >
> >
> >
> > ____________ _________ _________ __
> > From: daveswingle2 <swingle_dmc@ comcast.net>
> >
> > 
> > I don't specifically, but after seeing cracked hinges I don't believe a stronger bar is a good thing. Also more pressure on one and and less on the other will change how the door fits as it closes. 
> >
> > To take it to an extreme, why not turn the bar up so hot you can eliminate the strut (i.e. just use a shock absorber) altogether? 
> >
> > dave s
> 
> 
> 
> 
> 
>       
> 
> [Non-text portions of this message have been removed]
>




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