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Old 08-12-2020, 07:29 AM   #1
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1956 22' Safari
1962 28' Ambassador
Williston , Vermont
Join Date: Sep 2017
Posts: 493
Repair Solution for Knife Edged out riggers

This is a re-post from my Ambassador rebuild. It's a solution that I haven't seen before and works so well I thought I would share it in this forum as well.

Most old Airstream's will have some damage to the belly pan from the ends of the out riggers. Either poke thru's from impact or corrosion. As designed there just isn't enough bearing area where the steel outrigger contacts the Aluminum belly pan as it bends up toward the floor. This area is also tough to seal against rodent intrusion by the wheel wells.

On the Ambassador, the outriggers on both ends of the wheel wells were knife edge.

My solution utilized some 3/4" x 4" polyethylene trim board that I had laying around after a house project. I rough cut a 4" section on my chop saw. Made a clearance bore to clear the floor attachment bolt and used a single 1/4" SS bolt and lock nut to secure into place.
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I then used a belt sander to clean up the profile to my liking. All of the white you can see would have been a gap.
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It checks all the boxes:
  • Smooth transition for the belly pan
  • Good bearing surface for the belly pan
  • No galvanic problems
  • Easy to seal, with no gaps
I did it to the wheel wells and liked it so much and it was so easy, I did it to the complete frame. - Mark
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Old 08-12-2020, 07:49 AM   #2
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Mobile Rail Bunkhouse
Farmington , MO
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Brilliant! I will be using this idea when the time comes.
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Old 08-12-2020, 08:16 AM   #3
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1966 22' Safari
1955 22' Flying Cloud
Fredericksburg , Texas
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Good thinking Mark. Never figured out why the factory didnít do that to begin with. Iíve seen too many banana wraps that had creases and outriggers punching through. Also it makes the wrap much smoother and easier to install.
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