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02-22-2015, 04:23 PM
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#1
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Rivet Master
1982 34' Limited
1986 34.5' Airstream 345
Sioux Falls
, South Dakota
Join Date: Sep 2010
Posts: 558
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Rusty undercarriage, how much?
Hi folks,
I wasn't sure where to put this post. I did a search for undercarriage and found a couple of very old posts. Maybe the technology has improved.
We have rust on many parts under our 345 MH - axels, brake lines that were then replaced, I'm not ever sure what all the parts are that I'm looking at when I climb under there. A couple of garages in Portland said they could spray it with something but the rust would continue underneath. Is it a huge, expensive, impossible job to really remediate rust? What would or should it cost these days?
When our mechanic replaced the brake lines, he said the rust on the axles was still pretty superficial. We just removed the old propane tank which was looking pretty bad. We're not sure how much more to invest in the coach given the rust.
Here are the most recent pics, taken a couple of years ago. I'm not near the coach now. Thoughts would be most appreciated, thanks.
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02-22-2015, 06:42 PM
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#2
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Rivet Master
1984 31' Airstream310
Honokaa
, Hawaii
Join Date: Jun 2010
Posts: 993
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Ours looks worse, but since it is in Montana I am not worried about it. Most 25+ year old vehicles will have surface rust underneath. In really humid climates or places where the roads are salted rust can threaten the frame, but if your coach stays in California most of the time it won't be an issue. I have bought cans of spray on undercoating at Walmart to use on my trucks here in Hawaii where rust is an issue.
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02-22-2015, 07:15 PM
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#3
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Figment of My Imagination
2012 Interstate Coach
From All Over
, More Than Anywhere Else
Join Date: Dec 2011
Posts: 10,868
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Light rusting that is relatively uniform over the whole surface usually will not weaken anything enough to make a difference. However, if you do a detailed inspection and find any deep pitting, that's a fracture waiting to happen because there is a loss of strength due to the missing metal at the pit.
If you find deep pitting, one possible solution is to remove the rust all the way to good metal, fill the hole with weld metal (professionally, not a job for amateurs), and then machine it smooth to the original shape, along with peening it with a ball peen hammer to remove residual stress in the metal due to the heat from welding. And here you were probably wondering what a ball peen hammer was good for…
That's assuming, of course, that you don't have a source of replacement parts to simply swap out rusted parts.
__________________
I thought getting old would take longer!
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02-22-2015, 08:00 PM
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#4
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Rivet Master
1982 34' Limited
1986 34.5' Airstream 345
Sioux Falls
, South Dakota
Join Date: Sep 2010
Posts: 558
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No pitting, no fussing
Thanks both of you. I guess I need to ask the garage that has it to tell me if they've found any serious pitting. I can instruct someone to deal with that. Overall rust remediation just causes me to lose the will to live.
There are too many other issues that I have to deal with just to make it roadworthy for Burning Man. I got lucky enough to get tickets, now I have to make my Airstream shelter desert-worthy.
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02-23-2015, 08:33 AM
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#5
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Rivet Master
1966 26' Overlander
Woodstock
, Georgia
Join Date: Feb 2002
Posts: 8,525
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Obviously you haven't seen the underside of cars from any Northern States. They are way worse than that. Surface rust can be caused by moisture in the air, being too near the coast and other climatic issues. I would not worry about it..Go on living!
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02-23-2015, 09:36 AM
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#6
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Rivet Master
1972 31' Sovereign
1975 31' Excella 500
Currently Looking...
Benton
, Arkansas
Join Date: Mar 2013
Posts: 5,868
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From what I see in the pictures, there is nothing to worry about for the next 20 or thirty years.
1/2 Ton 4WD Truck, 72 Sovereign Hensley Arrow
__________________
The fact that I am opinionated does not presuppose that I am wrong......
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02-23-2015, 09:46 AM
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#7
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Rivet Master
1982 34' Limited
1986 34.5' Airstream 345
Sioux Falls
, South Dakota
Join Date: Sep 2010
Posts: 558
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Awriiiiight!
Yay! Thanks so much for that reassurance. I actually grew up on the East Coast but did not spend much time under cars so I wasnt sure how to evaluate the anxiety of coastal Californian mechanics who apparently are not used to seeing much rust.
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02-23-2015, 11:14 AM
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#8
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3 Rivet Member
2015 16' Sport
Oakville
, Ontario
Join Date: Aug 2014
Posts: 234
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surface patina looks fine, ready for antique roadshow
that exhaust pipe will perforate .... eventually, just keep an eye on it so you don't gas yourself
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02-23-2015, 02:27 PM
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#9
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Rivet Master
1982 34' Limited
1986 34.5' Airstream 345
Sioux Falls
, South Dakota
Join Date: Sep 2010
Posts: 558
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Antiques roadshow here I come!
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02-23-2015, 05:01 PM
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#10
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Rivet Master
1966 26' Overlander
Woodstock
, Georgia
Join Date: Feb 2002
Posts: 8,525
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also just so you know, if you looked for Chassis or Frame you would have found more posts then you could stand to read.
Best of luck to you
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02-23-2015, 06:51 PM
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#11
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Rivet Master
1982 34' Limited
1986 34.5' Airstream 345
Sioux Falls
, South Dakota
Join Date: Sep 2010
Posts: 558
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wrong search term
I knew I was using the wrong search term, but I forgot to ask what the right ones were. Thanks!
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02-23-2015, 10:31 PM
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#12
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Rivet Master
2007 20' Safari
Old Orchard Beach
, Maine
Join Date: Sep 2014
Posts: 510
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That wire or string wrapped around the axle (or something else) shouldn't be there. Just sayin'.
__________________
Marty Womer
Old Orchard Beach, Maine
Trailer name: Quarantina
2019-2022 President, Northeast Mountaineers Airstream Club
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02-24-2015, 12:28 PM
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#13
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Rivet Master
1984 31' Airstream310
Honokaa
, Hawaii
Join Date: Jun 2010
Posts: 993
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Quote:
Originally Posted by MaineStreamer
That wire or string wrapped around the axle (or something else) shouldn't be there. Just sayin'.
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That's not just a wire or string, it's a Reluctant Leveler Retention Bracket. I have one too.
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02-24-2015, 04:42 PM
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#14
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Rivet Master
1982 34' Limited
1986 34.5' Airstream 345
Sioux Falls
, South Dakota
Join Date: Sep 2010
Posts: 558
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The Reluctant Leveler Retention Bracket!
Hahahaha! That's exactly what it is, MaineStreamer! And that's what I'm calling it from now on.
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02-24-2015, 10:19 PM
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#15
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Rivet Master
2007 20' Safari
Old Orchard Beach
, Maine
Join Date: Sep 2014
Posts: 510
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Reluctant Leveler Retention Bracket? To tie plastic leveling blocks to the axle? I don't understand.
__________________
Marty Womer
Old Orchard Beach, Maine
Trailer name: Quarantina
2019-2022 President, Northeast Mountaineers Airstream Club
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02-24-2015, 10:30 PM
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#16
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Rivet Master
1982 34' Limited
1986 34.5' Airstream 345
Sioux Falls
, South Dakota
Join Date: Sep 2010
Posts: 558
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Seriously (?)
No, to tie nonfunctional leveling jacks to the axle because they drag on the ground.
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02-25-2015, 06:01 AM
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#17
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Rivet Master
2007 20' Safari
Old Orchard Beach
, Maine
Join Date: Sep 2014
Posts: 510
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Then why is the wire or string hanging beside the tire in the photo? Wouldn't something to tie up a nonfunctional or broken leveling jack be near the corners of the trailer? At least that is where my (completely functional) leveling jacks are located.
__________________
Marty Womer
Old Orchard Beach, Maine
Trailer name: Quarantina
2019-2022 President, Northeast Mountaineers Airstream Club
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02-25-2015, 07:41 AM
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#18
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Rivet Master
1982 34' Limited
1986 34.5' Airstream 345
Sioux Falls
, South Dakota
Join Date: Sep 2010
Posts: 558
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reluctant levelers
My levelers are not at the corners, they're too close to the midline and they dangle. I considered them to be dangerous when they worked and now feel they're not worth repairing. Maybe in subsequent models they fixed this design flaw.
But we do need to secure that wire before we drive her.
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