How do you attack this rust?....74 Build Start

[aaron6920]

I am wondering how to attack this rust? Is this something that can be wire wheeled? It is mostly surface rust at this point. Those seams appear to be rusting from the inside?

I was just curious how all of you attack this kind of rust and how to remove and replace that seam sealer?

The bronco I bought with the frame done and body has been off previously. I am trying to think of how to fix

 

[johnnybgood74]

i say new striker post. once you get it out, you can tackle the inside of the quarter panel

 

[broncodriver99]

That's not surface rust. Cleaning it up with a rust converter product will buy you some time but I'm guessing at some point you will have to repair/replace the striker post. If you can get both sides of the seam cleaned up should last a few years until you are ready for a resto.

 

[broncodriver99]

How about some more pics of the Bronco. Looks like it may be a pretty nice rig from that little preview.

 

[Revelation]

Only way to get all the seam sealer out is to take the quarter panel off.
Best I can think of without doing that is get a small sandblaster and blast the rust spots and the seam, from BOTH sides, and see where you are at with it. if it is only surface rust then brush on some rust converter, prime and call it good. You may get lucky and it is only the outside of the seam and has not gotten deeper.

 

[aaron6920]

So a new striker post is in order. Weird the other side is clean as a whistle.

My question is kind of a two part. I have that striker and this on both quarters. Above the tire is very solid on both lower quarters. To fix this would I most likely have to replace both quarters someday?

 

[Madgyver]

That's not surface rust. Cleaning it up with a rust converter product will buy you some time but I'm guessing at some point you will have to repair/replace the striker post. If you can get both sides of the seam cleaned up should last a few years until you are ready for a resto.

X2...................

Use a wire wheel to it or that 3M seaweed looking stuff to clean it up. use a wire brush on the inside access it under the fenderwell.
coat with rust converter to treat and than prime and paint.. For a driver this is the best route. Putting in a new part will not solve rust problems, it will come regardless of what you do or how you prepare the metal.

 

[broncodriver99]

So a new striker post is in order. Weird the other side is clean as a whistle.

My question is kind of a two part. I have that striker and this on both quarters. Above the tire is very solid on both lower quarters. To fix this would I most likely have to replace both quarters someday?

That's more like rock chips or poor paint prep. Except for the rust in the rocker seam that can be cleaned up and primed. Surface rust on flat panels can be cleaned up no problem. Rust in seams is a PITA.

 

[aaron6920]

X2...................

Use a wire wheel to it or that 3M seaweed looking stuff to clean it up. use a wire brush on the inside access it under the fenderwell.
coat with rust converter to treat and than prime and paint.. For a driver this is the best route. Putting in a new part will not solve rust problems, it will come regardless of what you do or how you prepare the metal.

I would like to take the time and do this body justice. So ideally in this type of rust in a seam is the tub off and sandblasted? I am just trying to get a grasp on what I could be looking at here.

 

[aaron6920]

That's more like rock chips or poor paint prep. Except for the rust in the rocker seam that can be cleaned up and primed. Surface rust on flat panels can be cleaned up no problem. Rust in seams is a PITA.

Broncodriver- the quarter has sever pin holes in it that if cleaned up with a grinder would really show. Same on the quarter behind the tire. Would a patch panel need to be welded in here? I have a millermatic 140 and am experienced welding. But no body work experience.

 

[Madgyver]

I would like to take the time and do this body justice. So ideally in this type of rust in a seam is the tub off and sandblasted? I am just trying to get a grasp on what I could be looking at here.

You can sandblast all you want. rust in the seam will still be rust in the seam.

 

[aaron6920]

You can sandblast all you want. rust in the seam will still be rust in the seam.

That is a bummer man . So if I take a 3m wheel to it. How to I make sure that rust doesnt come back in that seam?

 

[broncodriver99]

Yep with pinholes either a patch will have to be made or the quarter replaced. Some people might say clean it up and Bondo. I don't believe in that crap, it will always be a problem later on. Until you are ready to take it down and do some panel replacement your best bet is to clean up and neutralize any rust and drive it till you get a second one or until you have the time and money to do it right.

 

[broncodriver99]

That is a bummer man . So if I take a 3m wheel to it. How to I make sure that rust doesnt come back in that seam?

The only way to get rust out of seams is to have the body dipped.

 

[72_EB]

The striker doesn't look as bad to me as the lower quarter fold does. You could pull the rear wheel off and take a good peak at the backside of the striker post too. Most likely the backside is getting pretty crusty too from the lack of factory paint in that location. The seam sealer has made this one worse over time (like most of our trucks).
Hate to say it, but like the others are saying, unless you dig deep and get all the rust out and seal it good, it will come back on you. Plain and simple.
I'd wire brush it best you can and hit with a good rust converter. It will buy you some time until you do the eventual frame off.

 

[72_EB]

Or blasted.

The only way to get rust out of seams is to have the body dipped.

 

[aaron6920]

That is what I figured, hopefully I will start on the old girl soon.

 

[72_EB]

I agree 100%.

Yep with pinholes either a patch will have to be made or the quarter replaced. Some people might say clean it up and Bondo. I don't believe in that crap, it will always be a problem later on. Until you are ready to take it down and do some panel replacement your best bet is to clean up and neutralize any rust and drive it till you get a second one or until you have the time and money to do it right.

 

[aaron6920]

The body has been off once and the frame done so the nice thing is at least the body should come off easily.

 

[broncodriver99]

The body has been off once and the frame done so the nice thing is at least the body should come off easily.

Now you are thinkin like a Bronco owner. These trucks can be a real PITA when they want to but as long as you look at the positive side of it they are always a blast. Now how about them pics?;D