Re: [FWDLK] Torqued off

[William Huff <whuff@xxxxxxxxxx>]

I agree with all except the sandblasting.  Sandblasting does leave a
rough surface, actually too rough for immediate painting, which I suspect
could lead to stress risers.  I would prefer media blasting, maybe
walnut shells.  Smoothing would be on the menu too.  

Bill Huff

At 1/8/201101:41 AM, Richard Barber wrote:
> Lou:
>  
> I don?t have much experience with torsion bars other than that a 2-year
> old bar broke on my ?61 Valiant­my first new car.  As a corrosion
> engineer, I noted that the coating had been nicked and the salt of Omaha
> streets had worked on the exposed steel and allowed a crack to
> start.  Nice thing about torsion bars is that the ends just slid out
> and enabled the Valiant putt on down to the Chrysler dealer for a
> warranty replacement.
>  
> If I were to restore a torsion bar, I?d have it sandblasted, polish out
> any nicks or cracks, have it Magnafluxed for cracks, spray it with
> zinc-rich primer and follow with a coating of POR-15 or something
> similar. The zinc in the primer will give you some protection against
> future nicking of the coating.   You could also have the
> sandblasted and inspected bar lightly galvanized and then powdercoat
> it.  That would provide excellent corrosion protection which you may
> or may not need­depending on your planned use of the car.
>  
> The opinions of others more experienced is welcome.
>  
> Rich Barber
>  
> Date:    Fri, 7 Jan 2011 20:28:39 -0500
> From:    Lou Vecchioni
> <email4lou@xxxxxxxxxxx
> >
> Subject: Torsion bar re-coating/paint dip, or powder coat??
>
> I've been perusing the fwlk and imperial web board, googling, etc, and I
> can't find anything that helps me decide whether or not the original
> style thick paint is better than powder coating (or even if powder
> coating can withstand the twisting stress).
>
> I have my torsion bars off and will be wiping them down and inspecting
> for chips and rust this weekend.  Next week or so I will be sending
> off various front suspension pieces to be media blasted and powder
> coated....but I'm unsure what to do with the torsion bars.  
> Can they be blasted and treated the same way?
>
> Thanks,
> Lou
>
>  
>
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