Body work All body work discussion including vinyl tops

How to repair dash/cowl rust

Thread Tools
 
Search this Thread
 
Old January 20th, 2014, 01:50 PM
  #1  
Registered User
Thread Starter
 
Johnd's Avatar
 
Join Date: Dec 2011
Location: Raleigh NC
Posts: 624
How to repair dash/cowl rust

I pulled the windshield out today and the rust on the dashboard and cowl are worse than I thought. I know you can buy a new cowl from OPG but does anyone sell the dash piece? Even though this section is hidden under the molding I want to fix it correctly.


Thanks
JD
Attached Images
File Type: jpg
DSC02900.jpg (67.9 KB, 186 views)
File Type: jpg
DSC02901.jpg (68.3 KB, 173 views)
File Type: jpg
DSC02902.jpg (61.4 KB, 165 views)
Johnd is offline  
Old January 20th, 2014, 02:05 PM
  #2  
Registered User
 
allyolds68's Avatar
 
Join Date: Jul 2008
Location: Seneca Falls, NY
Posts: 5,291
Originally Posted by Johnd
I pulled the windshield out today and the rust on the dashboard and cowl are worse than I thought. I know you can buy a new cowl from OPG but does anyone sell the dash piece? Even though this section is hidden under the molding I want to fix it correctly.


Thanks
JD

I don't think OPG sells that piece for an Olds (cowl or dash). Mine was just like yours and I cut out the bad and butt welded in new pieces that I fabricated. There are those on here that will tell you to find a rust free cowl and replace the whole thing. I wouldn't.


Here's my before (after I cut out all the rust):





And my after but before any filler:


allyolds68 is online now  
Old January 20th, 2014, 04:04 PM
  #3  
Registered User
Thread Starter
 
Johnd's Avatar
 
Join Date: Dec 2011
Location: Raleigh NC
Posts: 624
Mike,

Thanks for the reply. The problem is my is rusted on the edges and on top of the cowl section - I am thinking I might be better off with a complete section - I just hate the idea of screwing with the VIN tag

JD
Johnd is offline  
Old January 20th, 2014, 05:28 PM
  #4  
Registered User
 
1970supremevert's Avatar
 
Join Date: Dec 2009
Location: MD
Posts: 478
JD
just remember the upper dash/cowl area will need to be painted with a satin black or even flat black, if done with gloss it will reflect back when the sun hits the gloss finish ask me how I know
1970supremevert is offline  
Old January 20th, 2014, 05:47 PM
  #5  
Registered User
 
allyolds68's Avatar
 
Join Date: Jul 2008
Location: Seneca Falls, NY
Posts: 5,291
Originally Posted by Johnd
Mike,

Thanks for the reply. The problem is my is rusted on the edges and on top of the cowl section - I am thinking I might be better off with a complete section - I just hate the idea of screwing with the VIN tag

JD

I had to replace a couple of bad locations in the cowl too
allyolds68 is online now  
Old January 20th, 2014, 07:43 PM
  #6  
Registered User
 
Tom442's Avatar
 
Join Date: May 2011
Location: Denver
Posts: 699
I did my cowl repair using this piece from a Chebelle supplier.
http://www.chevelle.com/1968-72-Wind...P6259C808.aspx
Tom442 is offline  
Old January 21st, 2014, 03:51 AM
  #7  
Registered User
Thread Starter
 
Johnd's Avatar
 
Join Date: Dec 2011
Location: Raleigh NC
Posts: 624
Tom - how well did this piece work - did you have to fabricate a lot?
Johnd is offline  
Old January 21st, 2014, 05:15 AM
  #8  
Registered User
 
Tom442's Avatar
 
Join Date: May 2011
Location: Denver
Posts: 699
That piece did not give me to much trouble. The ends need to be trimmed and I was really happy with the way it turned out. Here are some pics of my dash before.
Attached Images
File Type: jpg
100_2332.jpg (69.8 KB, 182 views)
File Type: jpg
100_2336.jpg (71.6 KB, 159 views)
File Type: jpg
100_2328.jpg (71.2 KB, 157 views)
File Type: jpg
100_2333.jpg (69.7 KB, 150 views)
File Type: jpg
100_2342.jpg (78.0 KB, 160 views)
Tom442 is offline  
Old January 21st, 2014, 05:18 AM
  #9  
Registered User
 
Tom442's Avatar
 
Join Date: May 2011
Location: Denver
Posts: 699
Here are some pics during the fitting.
Attached Images
File Type: jpg
100_2681.jpg (54.9 KB, 151 views)
File Type: jpg
100_2682.jpg (52.0 KB, 151 views)
File Type: jpg
100_2684.jpg (69.8 KB, 144 views)
File Type: jpg
100_2685.jpg (69.4 KB, 136 views)
File Type: jpg
100_2686.jpg (43.2 KB, 131 views)
Tom442 is offline  
Old January 21st, 2014, 05:24 AM
  #10  
Registered User
 
Tom442's Avatar
 
Join Date: May 2011
Location: Denver
Posts: 699
Here are some more pictures I should have posted before the previous post. shows the rust trimmed out and the inner metal primed.
Attached Images
File Type: jpg
100_2656.jpg (74.3 KB, 129 views)
File Type: jpg
100_2665.jpg (81.0 KB, 132 views)
File Type: jpg
100_2667.jpg (64.2 KB, 127 views)
File Type: jpg
100_2672.jpg (57.1 KB, 120 views)
File Type: jpg
100_2678.jpg (77.0 KB, 120 views)
Tom442 is offline  
Old January 21st, 2014, 05:26 AM
  #11  
Registered User
 
Tom442's Avatar
 
Join Date: May 2011
Location: Denver
Posts: 699
After welded and all my crappy weld blobs ground off and then DuraGlassed.
Attached Images
File Type: jpg
100_2757.jpg (53.3 KB, 143 views)
File Type: jpg
100_2759.jpg (48.1 KB, 138 views)
File Type: jpg
100_2762.jpg (55.8 KB, 146 views)
Tom442 is offline  
Old March 26th, 2014, 02:33 PM
  #12  
Registered User
 
jankyrre's Avatar
 
Join Date: Apr 2012
Location: Sykkylven,Norway
Posts: 267
That is the part I need.I see you welded it all the all the way in front,but original it looks like it is spotwelded to the coil section through the forsvars flange.Did you slide this panel under the remaining dash and spotweld,or did you cut and butweld.The dash panel seems thin to butweld.
jankyrre is offline  
Old March 26th, 2014, 03:10 PM
  #13  
Registered User
 
allyolds68's Avatar
 
Join Date: Jul 2008
Location: Seneca Falls, NY
Posts: 5,291
I butt welded the dash metal. Low heat and .023 wire. Even with everything stripped out of the dash it's hard to back grind it though.
allyolds68 is online now  
Old March 26th, 2014, 04:27 PM
  #14  
Registered User
 
Octania's Avatar
 
Join Date: Dec 2011
Posts: 7,286
as in, grind the backside smooth? why?

Is this one of those occasions where you can back up the seam with a pc of copper, so the steel welds together but doesn't melt thru or weld to the copper?
Octania is offline  
Old March 26th, 2014, 04:46 PM
  #15  
Registered User
 
rcktdoc's Avatar
 
Join Date: Apr 2011
Location: Northern IL
Posts: 2,494
I have done many of these 68-69 dashes and always use the complete upper dash out of a donor car 95% of the time you need to repair the metal below the top sheet meat dash,if you dont your just wasteing your time. When done this way its a top quality repair and is pretty much undetectable even with the dash pad removed.

Greg
rcktdoc is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
AzChevs
Parts For Sale
1
October 4th, 2015 08:41 PM
8point
General Discussion
7
January 17th, 2014 06:15 PM
oldsmosteel
Body & Paint
4
August 5th, 2013 10:13 AM
meoff
Body work
17
April 18th, 2013 06:24 PM
Johnd
Body work
1
January 27th, 2012 09:30 AM



Quick Reply: How to repair dash/cowl rust



All times are GMT -7. The time now is 02:05 PM.