Quarter Panel Body work…

Status
Not open for further replies.

Hotboyrn84

Apprentice
May 1, 2012
54
38
18
Backwards engineering… I hope… AKA making ish up as I go…
 

Attachments

  • image.jpg
    image.jpg
    1.5 MB · Views: 123
  • Like
Reactions: 1 user

57 Handyman

Master Mechanic
Feb 6, 2017
338
388
63
Hotboyrn84, from experience, I know you have a huge mess on your hands. A big project but not impossible! My 87 which is also a 5th Gen El Camino had body rust extending from the back lower corner of each door to the bottom of the tailgate. Because the rust was so extensive and involved the sealed chamber between the inner body shell and outer panel from the door to the front of the wheel wells, I concluded that a previous owner had been launching boats with this EC. Submersion was the only way water could intrude into this sealed area.

sml-20190307_111648.jpg


sml-20190622_142302.jpg

The pink compound you've encountered can be found throughout the body of our vehicles. It is not only down low but also higher like at the corners/base of the windshield where the windshield channel intersects the A-pillar. As someone previously mentioned, it is a weld-thru seam sealer that is LIBERALLY applied especially where multiple panels (I've counted up to 5 panels) are pinch welded to construct the body. Let me say that peeling back and separating the metal layers was a chore and no easy task. Because I tend to be a perfectionist, I opted to fix these areas like any restoration garage would--drill out any and all spot welds I found then separating each layers. Once the spot welds were drilled, I used a heat gun to soften the seam sealer. Softening the seam sealer was key to allow a flat Steck seam buster to slide in-between and separate each panel layer.

I note you're opting to retain as much of the original metal structures since you do not have replacements for these. Let me share with you how I addressed this dilemma; I ended up buying a 79 Pontiac Station Wagon and an 84 El Camino from which I scavenged replacement pieces. I was very fortunate to obtain both of these for $500 each and able to recoup my investment by selling off parts. Doing replacement of these inner pieces is important since many are involved in the structural integrity of the body, especially the seam that runs along the bottom length of the vehicle. Welding solid pieces is absolutely necessary! I offer this precaution: as you progress with the inner structures always be mindful of whether or not the outer panel fits properly. You don't want to weld it all up and later find out the skin panel doesn't line up and looks bad.

sml-20190323_175733.jpg


I post a few shots of the finished areas later when I find them.

Good luck and go slow!
 
  • Like
Reactions: 4 users

melloelky

Comic Book Super Hero
Oct 22, 2017
4,135
9,484
113
mass
sml-20190323_175733-jpg.185398

I've been waiting for a picture like this to show up,does any one know what the h*ll that rod that's welded inside the panel is for?????? I've seen them a bunch of times and have never been able to figure out it's purpose.:coffee::popcorn:
 
Last edited by a moderator:
  • Like
Reactions: 1 user

pagrunt

Geezer
Sep 14, 2014
9,124
15,255
113
Elderton, Pa
sml-20190323_175733-jpg.185398

I've been waiting for a picture like this to show up,does any one know what the h*ll that rod that's welded inside the panel is for?????? I've seen them a bunch of times and have never been able to figure out it's purpose.:coffee::popcorn:
Same here as I thought the Buick trunk floor I bought has them too.
 
Last edited by a moderator:

57 Handyman

Master Mechanic
Feb 6, 2017
338
388
63
I asked that question the other day to someone else who was also working on this area of our cars. His answer was...the rod is coated with some kind of wax sealant and held to the inside of the panel with the square adhesive pads. Since the automotive manufacturing industry had not yet evolved to dipping whole parts, the heat from welding the panels together would melt the wax sealant which then drained into the bottom seam to seal the intersection of the panels from the inside. Hopefully, this explanation suffices.

I want to seal my repairs from the inside and will do so after painting. I have to wait since most sealants have chemicals which will negatively effect paint jobs by creating fisheyes. So, I plan to use the round 1.5" hole (visible in the inner panel) to spray some type of cavity sealant/sealer.
 
Last edited:
  • Informative
Reactions: 1 user

ck80

Moderator
Moderator
Supporting Member
Feb 18, 2014
5,742
9,114
113
I asked that question the other day to someone else who was also working on this area of our cars. His answer was...the rod is coated with some kind of wax sealant and held to the inside of the panel with the square adhesive pads. Since the automotive manufacturing industry had not yet evolved to dipping whole parts, the heat from welding the panels together would melt the wax sealant which then drained into the bottom seam to seal the intersection of the panels from the inside. Hopefully, this explanation suffices.

I want to seal my repairs from the inside and will do so after painting. I have to wait since most sealants have chemicals which will negatively effect paint jobs by creating fisheyes. So, I plan to use the round 1.5" hole (visible in the inner panel) to spray some type of cavity sealant/sealer.
Not saying that isn't the reason, but, doesn't sound right... I mean, they could accomplish the same thing by just putting a thicker coat of wax on the panels being welded and let it drip down.

Also, they had whole panel e-coatings before these cars, the earliest forms of the tech started at Ford in the late 1950s, but if you buy nos metal for these cars they come with that familiar black coating on them..

On the flip side, given robotic welding was not yet a thing and these panels were hand aligned and attached wouldn't these make a mounting/alignment point to help hold the panel aligned while welds were being placed? Robotic jigs weren't a thing yet, and, you needed some consistency in these spots considering the roof wasn't on the car yet when the quarters got hung.
 
Last edited:
  • Like
Reactions: 1 users

Hotboyrn84

Apprentice
May 1, 2012
54
38
18
Thanks for the pics cause they were definitely a helpful start… I really hope u find pics of what you did here. …
Hotboyrn84, from experience, I know you have a huge mess on your hands. A big project but not impossible! My 87 which is also a 5th Gen El Camino had body rust extending from the back lower corner of each door to the bottom of the tailgate. Because the rust was so extensive and involved the sealed chamber between the inner body shell and outer panel from the door to the front of the wheel wells, I concluded that a previous owner had been launching boats with this EC. Submersion was the only way water could intrude into this sealed area.

View attachment 185396

View attachment 185397
The pink compound you've encountered can be found throughout the body of our vehicles. It is not only down low but also higher like at the corners/base of the windshield where the windshield channel intersects the A-pillar. As someone previously mentioned, it is a weld-thru seam sealer that is LIBERALLY applied especially where multiple panels (I've counted up to 5 panels) are pinch welded to construct the body. Let me say that peeling back and separating the metal layers was a chore and no easy task. Because I tend to be a perfectionist, I opted to fix these areas like any restoration garage would--drill out any and all spot welds I found then separating each layers. Once the spot welds were drilled, I used a heat gun to soften the seam sealer. Softening the seam sealer was key to allow a flat Steck seam buster to slide in-between and separate each panel layer.

I note you're opting to retain as much of the original metal structures since you do not have replacements for these. Let me share with you how I addressed this dilemma; I ended up buying a 79 Pontiac Station Wagon and an 84 El Camino from which I scavenged replacement pieces. I was very fortunate to obtain both of these for $500 each and able to recoup my investment by selling off parts. Doing replacement of these inner pieces is important since many are involved in the structural integrity of the body, especially the seam that runs along the bottom length of the vehicle. Welding solid pieces is absolutely necessary! I offer this precaution: as you progress with the inner structures always be mindful of whether or not the outer panel fits properly. You don't want to weld it all up and later find out the skin panel doesn't line up and looks bad.

View attachment 185398

I post a few shots of the finished areas later when I find them.

Good luck and go slow!
Are the pieces on the ground the original or donor… I’ll post what I’ve done so far tomorrow… It’s definitely been slow cut weld grind stare from all angles adjust repeat…
 

Hotboyrn84

Apprentice
May 1, 2012
54
38
18
I’m still trying to work out the internal structure before I do the outer quarter patch… based of what little was left I’m imagining this is close but we’ll see when I get the the outer
 

Attachments

  • image.jpg
    image.jpg
    1.6 MB · Views: 102
  • image.jpg
    image.jpg
    1.7 MB · Views: 101

57 Handyman

Master Mechanic
Feb 6, 2017
338
388
63
Sorry for taking so long to respond...the parts in the ground are the replacements from a donor vehicle. The rule of thumb I used was to build from the inside out all the while being very mindful of how the inside impacts the final fit of the outer skin. Just be patient and work slowly! Good luck!
 

Hotboyrn84

Apprentice
May 1, 2012
54
38
18
Almost happy with the inner quarter repair… hopefully the outer skin is easier
 

Attachments

  • E3D667D2-1EF7-43AE-B4FA-C64405B60E94.png
    E3D667D2-1EF7-43AE-B4FA-C64405B60E94.png
    792.9 KB · Views: 96
  • 69AD2AED-5BDE-4B32-8E29-6F760F3EC3C5.jpeg
    69AD2AED-5BDE-4B32-8E29-6F760F3EC3C5.jpeg
    2 MB · Views: 92
  • 2A6A9B02-1E99-41B1-A53F-F18C68609F45.jpeg
    2A6A9B02-1E99-41B1-A53F-F18C68609F45.jpeg
    1.8 MB · Views: 111
  • 509B856F-D9F6-485E-ABFE-F3353DB897BB.jpeg
    509B856F-D9F6-485E-ABFE-F3353DB897BB.jpeg
    2.1 MB · Views: 91
  • Like
Reactions: 3 users
Status
Not open for further replies.

GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates.

Please support GBodyForum Sponsors

Classic Truck Consoles Dixie Restoration Depot UMI Performance

Contact [email protected] for info on becoming a sponsor