C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Floorpan patch up

Thread Tools
 
Search this Thread
 
Old Apr 18, 2013 | 03:19 PM
  #1  
czardali's Avatar
czardali
Thread Starter
Instructor
10 Year Member
 
Joined: Mar 2010
Posts: 219
Likes: 0
From: Texas
Default Floorpan patch up

I've got two fist sized holes in my floor pan. One on each side. I am wanting to know what gauge of sheet metal to get as a temporary patch solution as I save up for the pan. Thanks !
Reply
Old Apr 18, 2013 | 04:13 PM
  #2  
BOSTONCAMARO's Avatar
BOSTONCAMARO
Melting Slicks
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: May 2006
Posts: 3,303
Likes: 14
From: Lynn MA
Default

I would consider a good body panel adhesive, patch it up

clean all surface rust, treat with rust treatment, apply body panel adhesive, paint with a stoneguard or similar
Reply
Old Apr 18, 2013 | 04:27 PM
  #3  
markids77's Avatar
markids77
Melting Slicks
 
Joined: Jun 2009
Posts: 2,709
Likes: 3
From: Savannah GA
Default

No, NO, No! It must be repaired using a "borrowed" Stop sign or some corrugated roofing tin or a recycled Dodge pickup truck tailgate! How are you gonna tell a hairraising story about how you procured some "body panel adhesive"???? Adventure awaits... go out and liberate some sort of 14 gauge or thicker sheet metal from somewhere, pop rivet it in and come tell us all about it.
Reply
Old Apr 18, 2013 | 05:00 PM
  #4  
ironwills76corvette's Avatar
ironwills76corvette
Racer
 
Joined: Jan 2013
Posts: 322
Likes: 0
From: Mountains of Maine
Default

How about pieces from an old wood furnace....

Welded in.....

Reply
Old Apr 18, 2013 | 05:40 PM
  #5  
Korevette's Avatar
Korevette
Racer
 
Joined: Jan 2007
Posts: 427
Likes: 1
Default

Take a pattern and go down to your local sheet metal shop along with a sample of the existing material to match it up. They can even cut the metal for you.

I had the same problem as 'ironwills76corvette'. Driverside was 'thin', the passenger side was good. I got a doner pan out of a salvage Corvette, copied the spots welds, lapped welded at the tunnel and rivited the metal pan to the fire wall as per factory specs'.

A fair bit of work but nothing that I will have to do again any time soon.
Reply
Old Apr 18, 2013 | 05:51 PM
  #6  
20mercury's Avatar
20mercury
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2008
Posts: 3,747
Likes: 713
From: Lafayette Louisiana
Default I only had 1 fist sized hole.

I only had 1 fist sized hole on the driver side floor pan on the 76. I just cleaned all the remaining metal good, painted with rust reformer, and fiberglassed over the whole pan including bridging the hole. I thought this was a good repair and way cheaper than buying a new metal pan for $200 and then welding it in. My area was good though for the seat belt anchor bolt and seat bolts. I suppose if your bolt connections are suspect, then maybe do something different. Pre 76 floor pans were all fiberglass anyway with I think a metal reinforcing backer plate to bolt to.

Hope this helps.
Reply
Old Apr 18, 2013 | 09:34 PM
  #7  
markids77's Avatar
markids77
Melting Slicks
 
Joined: Jun 2009
Posts: 2,709
Likes: 3
From: Savannah GA
Default

Atta boy Ironwills! That's what I'm talking about; good old Yankee thrift and ingenuity. And installed in a very neat workmanlike manner. Solid, permanent and virtually undetectable with the carpets installed. And the materials were FREE!!!!!
Reply
Old Apr 18, 2013 | 10:27 PM
  #8  
BOSTONCAMARO's Avatar
BOSTONCAMARO
Melting Slicks
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: May 2006
Posts: 3,303
Likes: 14
From: Lynn MA
Default

i meant use metal..but fuse it in..watch youtube on body panel adhesives ....often much stronger than welds......seen demos where welds break before adhesive...on frame machine
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Apr 18, 2013 | 11:12 PM
  #9  
czardali's Avatar
czardali
Thread Starter
Instructor
10 Year Member
 
Joined: Mar 2010
Posts: 219
Likes: 0
From: Texas
Default

I've got a welder, gonna go measure the floorpan, get 14 gauge sheetmetal and will go that route
Will update with photos.
Drivers side



Passenger side

Last edited by czardali; Apr 18, 2013 at 11:37 PM.
Reply
Old Apr 19, 2013 | 09:13 AM
  #10  
markids77's Avatar
markids77
Melting Slicks
 
Joined: Jun 2009
Posts: 2,709
Likes: 3
From: Savannah GA
Default

Boston... my comments were made with tongue firmly in cheek... my bad if they were taken seriously.Although Ironwills repair is good.

Last edited by markids77; Apr 19, 2013 at 09:14 AM. Reason: added a sentence
Reply
Old Apr 19, 2013 | 09:30 AM
  #11  
AirborneSilva's Avatar
AirborneSilva
Melting Slicks
10 Year Member
 
Joined: Aug 2012
Posts: 3,487
Likes: 83
From: Titusville Florida
Default

If you only have those two small areas why replace the pan, just do a good butt weld patch and treat the rest and forget it
Reply
Old Apr 19, 2013 | 10:41 AM
  #12  
ironwills76corvette's Avatar
ironwills76corvette
Racer
 
Joined: Jan 2013
Posts: 322
Likes: 0
From: Mountains of Maine
Default

Originally Posted by markids77
Atta boy Ironwills! That's what I'm talking about; good old Yankee thrift and ingenuity. And installed in a very neat workmanlike manner. Solid, permanent and virtually undetectable with the carpets installed. And the materials were FREE!!!!!
Thanks! My wife says I'm so cheap that I squeak when I walk.....

I personally like to butt weld as mentioned by AirborneSilva, to avoid an overlap where moisture can start rust. Other than the front, as mentioned also is riveted to the fiber glass.

The old wood furnace lives, albeit in hiding. Our little secret......

Reply
Old Apr 22, 2013 | 01:31 PM
  #13  
czardali's Avatar
czardali
Thread Starter
Instructor
10 Year Member
 
Joined: Mar 2010
Posts: 219
Likes: 0
From: Texas
Default

Drivers side photo. gonna shape a new sheet today to cover a larger area.
Reply

Get notified of new replies

To Floorpan patch up





All times are GMT -4. The time now is 11:36 PM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE