The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Paint & Bodywork

Web 67-72chevytrucks.com


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 03-31-2021, 08:01 PM   #1
ItWillBeSlow
Registered User
 
ItWillBeSlow's Avatar
 
Join Date: May 2013
Location: You're the only 10 I see
Posts: 367
Roof patch causing warp / oil canning

I am fixing an old CB antenna hole in my roof. The hole was in the center of the cab and I cut a 2" x 2" square to patch in with new metal.

About half way through tacking, I realized I had some major oil canning going on, and a hump on the sides and a valley on the top and bottom. The hump was about 1/8" up and the "valleys" also about 1/8" deep. I tacked fairly slow, 4 or 5 at a time and I don't think heat was the issue. These issues extended almost a foot around my patch in all directions.

I decided to cut out what I had put in and everything settled back to where it needed to be and there is no warp.

What did I do wrong with this patch, and how to I weld in this piece without the warp and oil canning?
Attached Images
   
__________________
1972 C20
ItWillBeSlow is offline   Reply With Quote
 

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:16 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com