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Author Topic: Evaluation of Rust  (Read 257 times)


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Evaluation of Rust
« on: July 15, 2020, 08:28:12 PM »
Hi folks,

We're first time RV buyers (see my previous threads), and we've found another RV that we like.

It seems to be in way better shape than the first RV we had inspected.  However, I'm not sure how to evaluate the rust in various places under the RV.  Here are the photos I took while looking at the RV: https://1drv.ms/u/s!AsmyL7OktH-KnKBV_7rnK8QfBAvXHw?e=oxxM3r

Here is the listing with some more pictures: https://www.rvtrader.com/listing/2004-Winnebago-ADVENTURER-38G-5012499269  The listing doesn't have pictures from under the RV, but you can see some rust on the outside of the storage compartment under the slideout, which my wife was worried about.

Is the amount of rusting normal for a 2004 RV?  Should I be worried about the rust?

You can also see in two of the pictures that it looks like the paint is flaking off on one side toward the rear.  Is that a cause for concern?

Thanks again!


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Re: Evaluation of Rust
« Reply #1 on: July 15, 2020, 08:45:50 PM »
I would say that the level of rust is better than most coaches of this age, my 2002 coach may have slightly less rust, but it is also has less rust than many other coaches of this vintage I have seen.   Overall I did not see anything in the photos that would make me worry.  None of that rust looked structural, except perhaps on the air conditioner condenser, and even that looked moderate.  I would worry about the age / condition of those tires though.
2002 Safari Trek 2830


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Re: Evaluation of Rust
« Reply #2 on: July 15, 2020, 08:53:47 PM »
Thanks.  Yes, we are assuming that we would have to replace the tires ASAP.


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Re: Evaluation of Rust
« Reply #3 on: July 15, 2020, 09:33:10 PM »

 It will also depend on where the RV has lived it's life,, some states use a lot of salt on there roads and it will accelerate the rust problem..>>>Dan
Vary rare American Tradition 38TT/330 turbo Cummins
Last year Jeep liberty 4 down
72 VW Baja 4 down
Cedar City, Utah
USAF vet. 59-63
FMCA F312919
You can't fix stupid,, but you can numb it with a 2X4


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  • Dan from Dayton...
Re: Evaluation of Rust
« Reply #4 on: July 16, 2020, 07:13:13 AM »
Nothing scary there in terms of rust Fortunately RVs don't get much winter driving so don't get attacked by a lot of salt.

As you and others note the tires are toast.

I have no real expertise on the roof maybe someone can chime in but my inexperienced view don't see the roof pics as worrisome.

Good looking candidate.

"Marvin" - 1997 Georgie Boy Pursuit 3150 - P30 Chev 454
Various classic MGBs
Ex-liveaboard boater - Class A newbie in sponge mode

Gary RV_Wizard

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Re: Evaluation of Rust
« Reply #5 on: July 16, 2020, 08:14:10 AM »
Rust around bay door frames and other metal structures is fairly common in RVs of a certain age.  Typically those are powder-coated metal and the powder coat peels off in large flakes once rust gets under it. Usually not difficult to fix if you are handy.  A few minutes work with a wire brush, then dab on a rust converter such as Ospho, VHT or Corroseal, followed by some new paint.

The problem area on Winnebagos is the windshield frame, which is known to get rusty and break the seal between the windshield glass and the frame. That requires windshield removal for repair.

RV chassis (frame rails and cross pieces) are not undercoated at the factory or dealer and can get severely rusted if exposed to road salt (winter driving) or ocean beaches (salt air). More typical use,  i.e. summer driving, rarely causes a rust problem worth worrying about.
Gary Brinck
Summers: Black Mountain, NC
Home: Ocala National Forest, FL