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Author Topic: Quarter panel patch and replacement  (Read 1487 times)
Mopartist
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Quarter panel patch and replacement
« on: August 21, 2007, 07:16:27 PM »

Well; I've put this off enough. This is one phase of my project I was dreading. But it has to be done. I decided to get brave and cut out the drivers side quarter panel. (It did need the WHOLE panel on this side.) And as you can see; along the bottom rear is rotted too, so I'll have to fab that part. I figured maybe I would keep a pictorial record for you novice bodywork guys such as myself. So that way if I blow it; you'll know what not to do; and see exactly WHY. You can see the outline of the new panel. I cut this short in case I decide to flange the metal and do the overlap technique (which I probably won't. I depends how I feel about it tomorrow) At any rate; it'll be easier to make a more exact cut without the weight of the old quarter if i do decide to butt weld the new one on. I'm putting in new tubs on mine thank God. I couldn't imagine having to get the quarter off and save the old wheelhouses. Finding and releasing all the spot welds is a total pain. I did find an area at the forward side of the  of the panel where there had been a previous repair with about a 1/4 inch of filler thats going to be hard to match up I suppose. Anyway; I'll keep adding pics as I get each step done (or ruined). Wink The passenger side will be much easier I think as the rust is only along the top rim.


* drivers quarter.jpg (75.11 KB, 741x556 - viewed 387 times.)

* drivers quarter 2.jpg (73.01 KB, 741x556 - viewed 393 times.)
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Re: Quarter panel patch and replacement
« Reply #1 on: August 21, 2007, 10:08:14 PM »

Man KEn, I bet that was hard for you to do.  I wouldve put it off also.  Goodluck!
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Re: Quarter panel patch and replacement
« Reply #2 on: August 21, 2007, 10:53:43 PM »

Yeah; I guess I really didn't have a choice though. The new wheel tubs were the next thing on the agenda and I need the new inner fender profile before I could  put em in. (But with enough putty; only I will know they've been replaced) Heh heh Wink
I'll probably have to create an illusion with paint and trim to cover it up
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Re: Quarter panel patch and replacement
« Reply #3 on: August 24, 2007, 10:37:36 PM »

Step 2; tacking quarter on to align.


* tacked 1.jpg (61.35 KB, 741x556 - viewed 320 times.)
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Re: Quarter panel patch and replacement
« Reply #4 on: August 24, 2007, 11:22:21 PM »

ya now your cruising.

looks good man.
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Re: Quarter panel patch and replacement
« Reply #5 on: August 24, 2007, 11:46:45 PM »

looks good ken, i was wondering if those pieces were available.........do they make whole quarters?
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Re: Quarter panel patch and replacement
« Reply #6 on: August 25, 2007, 07:59:49 AM »

i didnt think they were available either, looking good.
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Re: Quarter panel patch and replacement
« Reply #7 on: August 25, 2007, 07:48:49 PM »

Best way is to cut most of the old one out and lay the new quarter over the old one. Attach it with sheet metal screws and then start to cut. Weld the new panel to the old one where you cut them both. The piece of the old panel will fall away inside and the piece of the new panel can be snipped off as you go. Works best with a small body saw.
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Re: Quarter panel patch and replacement
« Reply #8 on: August 25, 2007, 08:22:17 PM »

looks good ken, i was wondering if those pieces were available.........do they make whole quarters?

Naw; I didn't come across whole quarters. I got these from a guy who drop ships through Goodmark
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Re: Quarter panel patch and replacement
« Reply #9 on: August 26, 2007, 02:59:50 AM »

Nice work, Ken! Keep the pics coming.
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Re: Quarter panel patch and replacement
« Reply #10 on: August 26, 2007, 08:11:57 PM »

Great progress Ken!
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Re: Quarter panel patch and replacement
« Reply #11 on: August 26, 2007, 09:39:43 PM »

Good job Ken! Looks great!  Smiley
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Re: Quarter panel patch and replacement
« Reply #12 on: August 27, 2007, 07:31:58 PM »

Well; I welded on it for about 2 hours today, and spent another hour grinding the welds. It did warp a little bit; but nothin so great that it can't be blended with a little filler. After all; it isn't a show car, so I guess it'll be OK. When I do the other side; I'll try to be even more prescise with my cuts. It's amazing what a difference of 1/16th of an inch can make when you butt weld the joints. I'll have to fab a little piece for the bottom behind the wheel opening.


* the fill and grind.jpg (61.92 KB, 741x556 - viewed 252 times.)
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Re: Quarter panel patch and replacement
« Reply #13 on: August 27, 2007, 10:45:05 PM »

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Re: Quarter panel patch and replacement
« Reply #14 on: August 27, 2007, 11:30:34 PM »


One more thing. It is very easy to build heat while grinding. I've seen lots of people take their time with the welds keeping it as cool as possible but then warp the panel by being too aggressive while grinding. Just take your time and be patient.
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Re: Quarter panel patch and replacement
« Reply #15 on: August 28, 2007, 07:32:03 PM »

The passenger side wasn't as bad. Oh; and I forgot to mention; I put a coat of rust converter on thesurface rust of the inner panels you see at the rear.

I have a question about the new panels. Does the black coating have to come off for the filler to stick? (I know it does for welding)


* passenger side.jpg (75.36 KB, 741x556 - viewed 227 times.)
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Re: Quarter panel patch and replacement
« Reply #16 on: August 28, 2007, 08:53:55 PM »

Good progress.  I think I would at least scuff it up with some 80 grit just to give the filler something to bite to.  I'm no pro though so we'll see what others have to say.
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Re: Quarter panel patch and replacement
« Reply #17 on: August 28, 2007, 10:36:06 PM »

i rough areas to be filled with a fresh 24 grit disc........i dont "hold" the trigger though, i hit the trigger and grind while it slowing down. use a half round cheesegrater to cut the excess filler and get the panel straight. tap down any high spots after the first coat. sand with 40 after cheese grating,  then 80, then finishing plastic. sand that with 100 and prime. it should look something like this.


* preprime9.jpg (41.98 KB, 640x480 - viewed 231 times.)

* preprime11.jpg (39.15 KB, 640x480 - viewed 220 times.)
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Re: Quarter panel patch and replacement
« Reply #18 on: August 29, 2007, 04:18:22 PM »

Cut and tack passenger side


* passenger side 3 tack.jpg (57.32 KB, 741x556 - viewed 209 times.)

* seam weld.jpg (65.8 KB, 741x556 - viewed 205 times.)
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Re: Quarter panel patch and replacement
« Reply #19 on: August 29, 2007, 04:33:39 PM »

Looks killer!  now go out there and finish welding while I sit here and get fat!  Popcorn
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Ryan (Strange246)
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Re: Quarter panel patch and replacement
« Reply #20 on: August 29, 2007, 04:41:31 PM »

Looks killer man! I can feel your pain...Literally LOL

Ryan
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Re: Quarter panel patch and replacement
« Reply #21 on: August 29, 2007, 07:33:34 PM »

Looks killer man! I can feel your pain...Literally LOL

Ryan

Well; I don't have a TIG (or the know how to use one if I did) So I'm kinda stuck with plan B.....Back to the grind (literally)  Wink
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Re: Quarter panel patch and replacement
« Reply #22 on: August 29, 2007, 08:18:02 PM »

you sure you havent done this before?
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Re: Quarter panel patch and replacement
« Reply #23 on: August 29, 2007, 08:27:27 PM »

you sure you havent done this before?
Nope; and I'm wishin I would have cut that a bit higher above the body contour. It's gonna be really hard to flatten where it is I think.
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Re: Quarter panel patch and replacement
« Reply #24 on: August 30, 2007, 01:54:16 PM »

Great progress!!  keep it up!!
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Re: Quarter panel patch and replacement
« Reply #25 on: August 30, 2007, 02:04:01 PM »

nice work, been keeping tabs on you & ryan strange to pick up any ideas i can for the job i'm doing. i like your statement, no show car, mine won't be again either, but i'd like to get it close once more. you guys inspire me to do better. thanks all.
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Re: Quarter panel patch and replacement
« Reply #26 on: August 30, 2007, 02:08:07 PM »

you sure you havent done this before?
   eldubb, i have, around 28 yrs ago,  \/][ stupid brain.
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Re: Quarter panel patch and replacement
« Reply #27 on: August 30, 2007, 02:46:03 PM »

The black coating on the new patches is "E-coat", it needs to be sanded but not sanded off.  The filler will stick it to it without any problems as long as it is sanded rough (40 grit then 80 grit then filler).  "E-coat" is put on with an electrostatic charge and is very good rust preventative.
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Re: Quarter panel patch and replacement
« Reply #28 on: September 06, 2007, 06:48:40 PM »

The grind. (I found lots of pin holes; but they're plugged now)


* the grind.jpg (61.98 KB, 741x556 - viewed 139 times.)
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Ryan (Strange246)
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Re: Quarter panel patch and replacement
« Reply #29 on: September 06, 2007, 11:20:53 PM »

Man that looks great, I'm about 90% done welding the drivers side quarter on mine, hoping to have it done Saturday....Then comes the passenger side...WEEEE

Ryan
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