Go Back   Tech Support Forum > Automotive Center > Automotive Support

rust fix under car

This is a discussion on rust fix under car within the Automotive Support forums, part of the Tech Support Forum category. hey guys i was changing my wheels back from my snow tires the other day and i noticed that the


Reply
 
Thread Tools Search this Thread
Old 03-16-2011, 01:09 PM   #1
TSF Enthusiast
 
Chyrio's Avatar
 
Join Date: Feb 2010
Location: Colorado
Posts: 526
OS: Windows 8 Pro, Windows 7 Ultimate, Windows XP sp3 Pro

My System


hey guys i was changing my wheels back from my snow tires the other day and i noticed that the entire underside of the main body was rusted out on my car!! it has not spread to the chassis but all the way down the inside of the wheel well and a little under the car and its spreading fast. what can i do? i was thinking about just taking a metal saw and cutting out everywere it is rusted and build myself a new structure in there. would this work?

__________________
Nothings impossible
Chyrio is offline   Reply With Quote
Old 03-16-2011, 01:12 PM   #2
TSF Enthusiast
 
Chyrio's Avatar
 
Join Date: Feb 2010
Location: Colorado
Posts: 526
OS: Windows 8 Pro, Windows 7 Ultimate, Windows XP sp3 Pro

My System


i marked were it is under the car in yellow
Attached Thumbnails
Click image for larger version

Name:	3580190002_large.jpg
Views:	56
Size:	36.5 KB
ID:	88534  

__________________
Nothings impossible
Chyrio is offline   Reply With Quote
Old 03-16-2011, 02:24 PM   #3
TSF Enthusiast
 
Join Date: Jul 2005
Location: Louisville, KY
Posts: 3,254
OS: xp



There are products available such as Rust Bullet that might help. There is another, which is probably the #1 seller, but I can't remember the name.
__________________
bruiser is offline   Reply With Quote
Old 03-16-2011, 11:43 PM   #4
TSF Enthusiast
 
Chyrio's Avatar
 
Join Date: Feb 2010
Location: Colorado
Posts: 526
OS: Windows 8 Pro, Windows 7 Ultimate, Windows XP sp3 Pro

My System

But how can I fix it? The rust is only contained to the main body but still it has ripped a massive hole in the bottom
Attached Thumbnails
Click image for larger version

Name:	ForumRunner_20110317_004116.png
Views:	51
Size:	409.6 KB
ID:	88576   Click image for larger version

Name:	ForumRunner_20110317_004145.png
Views:	39
Size:	409.6 KB
ID:	88577   Click image for larger version

Name:	ForumRunner_20110317_004203.png
Views:	32
Size:	409.6 KB
ID:	88578  

Click image for larger version

Name:	ForumRunner_20110317_004225.png
Views:	42
Size:	409.6 KB
ID:	88579  
__________________
Nothings impossible
Chyrio is offline   Reply With Quote
Old 03-16-2011, 11:44 PM   #5
TSF Enthusiast
 
Chyrio's Avatar
 
Join Date: Feb 2010
Location: Colorado
Posts: 526
OS: Windows 8 Pro, Windows 7 Ultimate, Windows XP sp3 Pro

My System

Sorry bout all the pics I'm trying the new android app and it was confusing me
__________________
Nothings impossible
Chyrio is offline   Reply With Quote
Old 03-17-2011, 05:32 AM   #6
TSF Enthusiast
 
Join Date: Jul 2005
Location: Louisville, KY
Posts: 3,254
OS: xp



I should have looked at the pics first. Didn't know it was that bad. It's probably beyond repairing at home. It will probably require professional repair.
__________________
bruiser is offline   Reply With Quote
Old 03-17-2011, 07:58 AM   #7
Moderator Offline
 
Basementgeek's Avatar
 
Join Date: Feb 2005
Location: Ohio, USA
Posts: 11,211
OS: XP Pro SP3/Vista Ultimate SP2/Win7 64 bit



Yea, that's bad. The other side maybe getting bad also.
$$$$

BG
__________________

Four boxes keep us free: the soap box, the ballot box, the jury box, and the cartridge box.

Basementgeek is offline   Reply With Quote
Old 03-17-2011, 10:45 AM   #8
Registered Member
 
Join Date: Feb 2007
Posts: 223
OS: win7-64



Cut back the rusted sections, much of it will break off with a little pressure.
Sand to bare metal and spray with phosphoric acid. let it dry, then wash, rinse, prime and paint.

Use scrap metal to mock up replacement and pop rivets to secure it. Paint patch to suit.

Easier than it sounds actually.

If you have or know someone with a welder, you can weld it on, in which case you can skip the prime and paint of the metal under the patch.

There are a lot of sites that detail how to make patches on car bodies, with different goals. some are strictly for looks, other stress function, others are for good looks and solid repairs.

The most difficult part with that repair will be access.

If you just want to stop the rust, cut off the horizontal parts, wash it out real good and spray with phosphoric acid, it's normally sold in auto stores as 'rust converter' , but can often get it cheaper from pool and garden supply shops. Then when the acid has dried, paint the interior.
It will keep mud and dirt from caking up in there and slow the rust.
__________________
kendallt is offline   Reply With Quote
Old 03-18-2011, 04:30 PM   #9
Automotive Team
Moderator
 
wolfen1086's Avatar
 
Join Date: Oct 2007
Location: Rainey, Virginia Beach, Virginia
Posts: 9,757
OS: M/S Windows Vista Home Basic SP2 / Linux Ubuntu 13.10



If you have panels welded in have it done with a 70 amp wire fed flux core welder min 120 amp flux core max. I have a 50/70, if your in h Va Beach area come on by, bring a old washing machine body and I'll weld new parts in cheaper than a body shop, granted I'm not as pretty as a body shop, but I guarantee if you bring a washing machine body it'll hold a long time. Used that in floor boards in an old Chevy pickup 25 years ago I sold the truck 5 years ago with solid floor panels STILL installed :)
__________________

Windows......biggest waste of time I ever did in my entire life
wolfen1086 is offline   Reply With Quote
Old 03-18-2011, 09:44 PM   #10
TSF Enthusiast
 
Chyrio's Avatar
 
Join Date: Feb 2010
Location: Colorado
Posts: 526
OS: Windows 8 Pro, Windows 7 Ultimate, Windows XP sp3 Pro

My System

Well that part of the car is located under another piece of plastic that is the side skirt my main concern is the spread of rust would it be ok if I just cut that section of the body out were the rust is? It's not a major part and doesn't hold anything in place I think
__________________
Nothings impossible
Chyrio is offline   Reply With Quote
Old 03-19-2011, 06:38 AM   #11
Automotive Team
Moderator
 
wolfen1086's Avatar
 
Join Date: Oct 2007
Location: Rainey, Virginia Beach, Virginia
Posts: 9,757
OS: M/S Windows Vista Home Basic SP2 / Linux Ubuntu 13.10



Yea you can cut it out, BUT what will happen if you do? That is what you have to consider when modifying a car body under side, will exhaust get in, water, cold air, hot air. Believe it or not there is a alternative to new sheet metal if its not a structural component, .......................fiberglass, easily obtainable at Wal Mart of the local hardware store. Just remember to use the cloth, not the mesh stuff.
__________________

Windows......biggest waste of time I ever did in my entire life
wolfen1086 is offline   Reply With Quote
Old 03-19-2011, 10:12 AM   #12
TSF Enthusiast
 
Chyrio's Avatar
 
Join Date: Feb 2010
Location: Colorado
Posts: 526
OS: Windows 8 Pro, Windows 7 Ultimate, Windows XP sp3 Pro

My System

Sweet could someone give me a good guide how to put it on?
__________________
Nothings impossible
Chyrio is offline   Reply With Quote
Old 03-19-2011, 11:14 AM   #13
Automotive Team
Moderator
 
wolfen1086's Avatar
 
Join Date: Oct 2007
Location: Rainey, Virginia Beach, Virginia
Posts: 9,757
OS: M/S Windows Vista Home Basic SP2 / Linux Ubuntu 13.10



Here's one video, I didn't watch it so........you know
How to use Bondo Fiberglass Mat and Resin for body repair | Video « Wonder How To
but remember one thing with fiberglass wear a respirator and use gloves, you DO NOT want ANY of that stuff on you or in your lungs, and a sander will become your best friend in a hurry.
__________________

Windows......biggest waste of time I ever did in my entire life
wolfen1086 is offline   Reply With Quote
Old 03-19-2011, 12:25 PM   #14
Administrator
TSF Manager
 
SABL's Avatar
 
Join Date: Jul 2008
Location: Galena, Ohio
Posts: 10,883
OS: WinXP Pro SP3, Vista Home Premium SP2



And, NOT a palm sander!! Belt sanders are too brutal!! I have not used my palm sander since the purchaes of a random orbit sander.....that was many years ago. Now that we talking about a dusty process.........air compressor will come in handy. Gotta keep the dust blown out of the sander motor and bearings or it won't last very long. Blow the velcro pad, that the paper sticks to, off before attaching a new piece of sandpaper.....pad will last longer and paper sticks better. A cheap oil type compressor will do the job.....I gave up on the oil-less compressors years ago. Last one I bought was a Craftsman 3gal for $95.....might do better at Harbor Freight..... An air compressor always comes in handy around the house.....seems that most times I go to the local gas station someone is putting air in their tires....after paying $1 to use the "air pump".....gee..... Most compressors come with a cheap flex hose and attachments.
__________________
It's a good thing I never had any sanity......I would have lost it by now.
SABL is offline   Reply With Quote
Old 03-19-2011, 12:51 PM   #15
Automotive Team
Moderator
 
wolfen1086's Avatar
 
Join Date: Oct 2007
Location: Rainey, Virginia Beach, Virginia
Posts: 9,757
OS: M/S Windows Vista Home Basic SP2 / Linux Ubuntu 13.10



My personal favorite is a 4 1/2" disk grinder with a sanding disk on it I us the alu blending disks from Northern. But as SABL said do NOT use a palm sander or it will be dead real fast and a air compressor is a must. But if you us ea air compressor, spend the extra money and get a really good one that will power a pneumatic sander and go that route, its what we used on rotor blades in the Navy and we never had any problems out of the tools. AND if you mess up and make a indent when the glass is still wet, bondo sticks to fiberglass a lot longer than it does to steel. trust em I worked on Helicopters :)
__________________

Windows......biggest waste of time I ever did in my entire life
wolfen1086 is offline   Reply With Quote
Old 03-19-2011, 01:14 PM   #16
Team Manager, Gaming
Team Manager, Microsoft Support
Team Manager, Hardware Team
Microsoft MVP
 
Wrench97's Avatar

Microsoft Most Valuable Professional
 
Join Date: May 2008
Location: S.E. Pennsylvania
Posts: 48,357
OS: Win7



That looks like it may be part of the unibody box frame section to me, if it is, it's not something you want to play with get a pro to look at it and advise.
Wrench97 is online now   Reply With Quote
Old 03-19-2011, 05:24 PM   #17
Automotive Team
Moderator
 
wolfen1086's Avatar
 
Join Date: Oct 2007
Location: Rainey, Virginia Beach, Virginia
Posts: 9,757
OS: M/S Windows Vista Home Basic SP2 / Linux Ubuntu 13.10



if its part of the unibody structure then fiberglass is out of the question and steel MUST be used
__________________

Windows......biggest waste of time I ever did in my entire life
wolfen1086 is offline   Reply With Quote
Old 03-20-2011, 09:43 AM   #18
TSF Enthusiast
 
Chyrio's Avatar
 
Join Date: Feb 2010
Location: Colorado
Posts: 526
OS: Windows 8 Pro, Windows 7 Ultimate, Windows XP sp3 Pro

My System

Well today I'm going to my friends house who has this big old car jack so I'll get you some better pictures today

__________________
Nothings impossible
Chyrio is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
[SOLVED] BSOD problems.
· Vista · x64 · What was original installed OS on system? None. Custom built. · OEM: Full Retail Version · Age of system (hardware): 3 years · Age of OS installation - have you re-installed the OS? 3 years. Yes. · CPU: Intel Core 2 Duo E8400 Wolfdale · Video Card: EVGA GEforce 8800 GT...
ajcc323 BSOD, App Crashes And Hangs 25 02-24-2011 04:31 AM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is on
Smilies are on
[IMG] code is on
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Post a Question


» Site Navigation
 > FAQ
  > 10.0.0.2


All times are GMT -7. The time now is 06:49 AM.


Copyright 2001 - 2014, Tech Support Forum

Windows 7 - Windows XP - Windows Vista - Trojan Removal - Spyware Removal - Virus Removal - Networking - Security - Top Web Hosts