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Old 05-19-2003, 07:13 PM   #1 (permalink)
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How would you handle this RUST?

Pics here.. thanks to Dieselcruiserhead
http://www.collegeinternetsolutions....enimages/rust/

What would be the best prescription for taking care of this rust before it gets too far out of control. The worst is on the inside of the tub as you can see where the fenderwells attach to the outer panels.
There is some cancer coming through to the outside but it appears to be minor. I am not going to pull the tub as one person suggested. The rust just isn't that bad. The PO replaced the rear piece below the ambulance doors and is not rusted.
I have Mig/acetelyne and arc. I don't want to warp the sh*t out of the panel. What would you do. I want to repaint the inside the stock Cygnus white OEM color.
Should I just cut out and replace with 14 ga. pieces of steel.??
Make suggestions.

thanks
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Old 05-19-2003, 07:32 PM   #2 (permalink)
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Like you said it doesnt look that bad, I would just wire wheel those spots inside and out. And coat them with a good rust inhibitor(spell?). Or plan on a time consuming cut and patch with the welder. If you do weld in new metal, just tack in certain spots, and let it cool, then repeat. This will help with the warping factor on the thin material. At least with this route you know for sure you have gotten all the "cancer" out though.
Best of luck.
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Old 05-19-2003, 08:01 PM   #3 (permalink)
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Hey bennett, I'm actually at the same point on my truck, '84 BJ42, and the tub is mint and looks alot like yours. At least I thought it was... I had the worst of it sandblasted and decided to cut out the rusty spots, and out of curiosity cut a little further along the spot welds(horizontal) to see what was underneath. It turned out being rusty between both faces even though it looked purfectly fine and not rusty from the inside or the outside. I've decided to replace both the inner lip of the tub and the outer sheetmetal while I'm there, and not wanting to do it again in another 3 years when it decides to bubble out...
Anyhow, if I were you I'd cut into it and see, that way there's no surprises a little later, and besides you're there now!!!
Just my thoughts on it...
Good luck!
Cheers,
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Old 05-19-2003, 09:07 PM   #4 (permalink)
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check out my photo page in the sig....you can see in the restoration folder how we used 14 ga diamondplate....
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Old 05-19-2003, 09:17 PM   #5 (permalink)
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wire wheel to see how bad the rust is. in areas where you can wire away to clean metal, coat well with rust convertor and/or inhibitor. in areas where it's too far gone, patch. patching small sections will be a lot easier than waiting until later and having to deal with aligning the tub before you weld in new patches.
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Old 05-20-2003, 07:41 AM   #6 (permalink)
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What about the supports under the roll bar attachemnt points..should I drill some drain holes in those for future drainage? Seems like sediment may build up there and can't get out. I think I may go in from above and look at those supports.
What do you do about those?

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Old 05-20-2003, 10:56 AM   #7 (permalink)
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Quote:
Originally posted by Mr McGee
check out my photo page in the sig....you can see in the restoration folder how we used 14 ga diamondplate....
Wow, that looks like a ton of work, nice job.
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Old 05-20-2003, 11:29 AM   #8 (permalink)
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RustMort is a good rust converter. If you just want to wire wheel everything clean, treat it, primer and paint, and you live in a dry climate, and you never get it very wet, it will last a while...YMMV. That's what I did to mine about 5 years ago...right now I'm rebuilding the tub where it all rotted out anyway despite doing all this...so it's really a pay me now or pay me later scenario....-sigh-..."stupid rusty cruisers!"
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Old 05-20-2003, 11:48 AM   #9 (permalink)
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Quote:
Originally posted by Cruiser Ken


Wow, that looks like a ton of work, nice job.
it was
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Old 05-20-2003, 12:19 PM   #10 (permalink)
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I'm with Nomad on the symptoms analysis (incomplete diagnosis) but I'm not sure you really need to worry about it NOW... Brush and paint what you can, and wait a few more years then you'll replace the whole rear tub...

If it's just a few points though on an otherwise mint tub, you could clean out carefully the joints inside and out (bare metal), and apply a very good sealant in the joint to prevent anymore moisture thus rust... cheap and could take care of the little business

Denis
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Old 05-20-2003, 12:58 PM   #11 (permalink)
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cut it all out ,heck cut the back of the rig off . Make a flatbed and be done with it.
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Old 05-21-2003, 08:53 PM   #12 (permalink)
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Old 05-21-2003, 09:18 PM   #13 (permalink)
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I found this interesting:

http://www.birfield.com/archives/htm.../msg00802.html

If you read the followups you'll see some more good comments...
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Old 05-21-2003, 09:20 PM   #14 (permalink)
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PS, thread hijacked!
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