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Old 06-09-2010, 11:31 AM   #1
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Exclamation Really bad rust spots!!

I've got some bad rust spots on my Jeep that need fixing. I don't know what's been done to them but they have rusted all the way through. I'm going to repaint my Jeep so I need these fixed. What's the best way to do this?
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Old 06-09-2010, 11:50 AM   #2
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Wow, I've got some rust starting in the exact same spots...not nearly as bad though. I'd like to learn how to fix this too so I can get it before it gets that bad.

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Old 06-09-2010, 12:05 PM   #3
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For the first couple pictures, I would suggest getting a new fender.

The bottom ones...cut em out, cut a piece of metal, and weld in.
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Old 06-09-2010, 12:21 PM   #4
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had a friend say he can grind them out and put in metal body filler? mine isnt quite as bad but it is bubbling through the paint
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Old 06-09-2010, 12:24 PM   #5
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Originally Posted by toshpate View Post
had a friend say he can grind them out and put in metal body filler? mine isnt quite as bad but it is bubbling through the paint
I will be doing that this winter, but his are too severe. They need to be cut out.
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Old 06-09-2010, 12:25 PM   #6
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okie doke, thanks, lucky mine is just plain ol black and easy to paint.
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Old 06-09-2010, 01:35 PM   #7
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Originally Posted by Jalus Cornerious View Post
I've got some bad rust spots on my Jeep that need fixing. I don't know what's been done to them but they have rusted all the way through. I'm going to repaint my Jeep so I need these fixed. What's the best way to do this?
If you are planning on keeping the jeep for a long time you have 2 options in my opinion ,new fenders or cut out bad metal ,and weld in new metal ,bondo will just eventuall become loose as the metal further deteriorates around it .Mine is rusting in the same spots but not as severe as yours .I will be doing my bodywork soon.Here is a couple pics of a FJ62 Toy that I am currently doing for my bro-in law .
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Old 06-09-2010, 01:36 PM   #8
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It looks like your welds are rusting? Better sand them and paint them up quick!!!
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Old 06-09-2010, 01:49 PM   #9
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Thanks for the info! I think I'll grind it down some to see all that needs to be cut and then weld on some new metal. What's a good place to get a replacement fender?
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Old 06-09-2010, 01:58 PM   #10
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Quadratech sells them, or you could try a junkyard, but a fender from the yard would probably have beginnings of rust, I would just a brand spanking new one from quadratch.

Definitely just sand away all the paint to see where all the rust is and cut it all out, especially since you're getting it painted anyways.

The only way to stop rust is to cut it out, IMO.
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Old 06-09-2010, 01:58 PM   #11
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Possibly look into a new hood also?
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Old 06-09-2010, 02:16 PM   #12
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My hood is fine. 150 is more than I was hoping to pay for a new fender (I've already got to get a new tailgate). The spot on the fender is no more than 2 inches long, think I could cut it out as well?
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Old 06-09-2010, 02:28 PM   #13
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You could. But with rust that bad, I'm sure almost your entire fender is done. New fender is the way to go.
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Old 06-09-2010, 02:53 PM   #14
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All right. As for the other spot, how do I smooth it out after welding on the new piece? Bondo?
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Old 06-09-2010, 04:40 PM   #15
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It looks like your welds are rusting? Better sand them and paint them up quick!!!
Not rusting just discoloration ,that happens when metal is heated .These spots have already been ground down filled and finished w/ primer on bothe sides of the vehicle ,now Im working on the rockers (all body parts are hand made nothing bought here).After the rockers are done then the outer fender wells will be fabbed and welded .I,m also painting it when its all done .Jalus good luck with your body work ,gminton is right about the fenders,they are cheap enough ,and would safe you a sh*$ ton of time and aggrevation .
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Old 06-09-2010, 05:20 PM   #16
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Thanks for the help guys! I'll tackle this over the weekend.
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Old 06-09-2010, 06:17 PM   #17
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Look on Craigslist or Ebay man, it might be cheaper than a new one from Quadratec.

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