>Date: Wed, 18 Jun 1997 09:47:11 -0700 (PDT)
>From: Timothy Obrien <vbob(at)primenet.com>
>Subject: Re:Middle Rocker corrosion
>
>
>Somewhere shortly down the road, I will be doing a replacement job on the
>outer and middle rocker panels on my 66 SV. The question is, If I weld a
>new middle panel in, how do I do corrosion control on the backside of that
>section? Same for when I weld the outer rocker over the middle. Seems to
>be the weak point of double box construction.
>Any ideas for preventing the recurrance of terminal rust would be
>appreciated.
>tim
>
>
Tim...
Just apply 2 or 3 of coats of a good rustproofing paint e.g "hammerite"
before you fit. Only a little will burn off. (Use a weld-through primer
instead on the bottom flanges of the outer & central sill/rockers). You
can inject rustproofing cavity wax from holes drilled in innermost sill
just above floor (for inner "box") and through ledge on outer sill step
(for outer box). (Finish all welding in wheelarch closing sections,
outrigger etc before you inject the wax.). Wax should creep into joints
under gravity. Fit grommets or flush filler over to finish.
Tips- 1/Check door gaps 5/8inch & Brace shell 2/Repair lower 'A'post
*before* you remove old central sill. 3/remember condensation-drain
holes.4/ If you're lucky you need only replace lower half of central sill &
you can leave outer sill upper step in place- Wire brush and paint 'em 5/
dress panel flanges to minimise any gaps.
I hope your innermost sills are solid or can be patched - full replacement
is possible, but a pain (guess how I know!). Maybe you know some of this
stuff already, if so, apologies in advance. BTW, I'm currently tackling the
rear inner arches. Nightmare rust :-(
cheers
Andy Whiteford Ser III GT
Glasgow, SCOTLAND.
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