I made adjustable steel cross-bars and the extensions to the roof extrusion were triangulated for latteral stability. The uprights are tubes that slide over pins welded to the cross-bars.
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| This rack
is fastened to the roof via an aluminum "T"
extrusion that's been hand formed to conform to the roof
curve.
The roof
has 36 threaded inserts (10-24) installed from the outside
in.
Much effort was made to prevent leaks through the attachment: All
inserts were carefully sealed
with silicone when they were installed. Whenwhen the
extrusions were put on, the screws were sealed too. A 1/8"
foam strip (with
holes) was put between the aluminum and the roof. So far (6
years), the system has worked perfectly. No leaks.
The car
has been driven 80 mph (pure accident) with 3 canoes and the C1
mounted, all at once
(using bow and stern lines). The "bad part" is that the rack
is
now a more-or-less permanent part of the car, but I plan on driving it
until it's quite used up. |
I made adjustable steel cross-bars and the extensions to the roof extrusion were triangulated for latteral stability. The uprights are tubes that slide over pins welded to the cross-bars. |
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