Week 34
Yes...I did take 3 weeks off. I passed the 6 month point on solid bodywork and needed a break. But, I'm back into it.
This week the job was the front body mounts on the clip. The body mounts are spot welded to the inner wing, and the problem is that water corroded this joint from the inside out. The mounts are 16 gage metal, so they are still usable, but the 20 gage inner wings are holed and buckling. I will have to cut out the tattered part of the inner wings and patch with new metal.
Let's get started...
As always, get your patch all made before you do any serious metal removal. Here I have the new patch, and will scribe it's shape onto the inner wing, so I know what to remove.
Once the patch is shaped, it's time to remove the bad metal. Here you get a good view of what was causing the metal to buckle.
Getting close...
And there. All the bad metal is removed. The body mount is still rough, but it has enough metal left that I am not worried about strength.
Note...normally, at this point I would take the part outside and sand blast the rust off the mount. But, the part...being the entire front clip...being so large, I fudged and just wire brushed the rust. I was too lazy to carry the entire clip out back, but I wish I had. Later, when I start to weld onto this surface rust, and no matter how much I wire brushed it...it made a very difficult surface to penetrate with the weld. You will see what I mean as we progress.
Here goes the wire brushing.
Unlike the factory, I primed the inside of the mount joint. Not that it matters, but if it took 60 years to rust through the first time...it ought to take much longer to rust through the next time!?!
Noticed I punched holes to hole weld the patch onto the mount.
And here goes the hole welding.
Now, this is where things went south. The poor surface on the mount, combined with the primer (even though it is "weld through" on the label, made the hole welds completely ineffective. I would do a weld, and a few seconds later I would hear a "ping", as the two panels pulled back apart. I would then have to re-drill the holes and do it again...but, in the mean time, every hole spread the plates apart just a bit, so the whole patch slowly went to h#%* in a handbag. Through perseverance I managed to get it together, but next time I will sand blast the part, regardless of the effort it takes to do it.
This angle shows that this particular area is flat. That compounds the work involved. You can always fudge a curve. There is no way to fudge flat! I was not happy with the patch, but it is close enough. WIth most of my body work it is close enough to finish with primer alone. This area will take a glaze to finish it off. Fortunately it is buried behind the apron so far that it will never show.
Yep, believe it or not, that was the better side! Time for the bad side.
The patch panel is fashioned, and then I started in with the cut-off disc.
Now just a matter of cutting and pealing.
Here is the root of all this rust. For some unknown reason, the factory placed a hole in the wings, so water could enter and fester between the mount plate and wing. Small hole, 60 years, and the result is ugly!
As I worked down, you can see the random spot welds that had to be drilled and ripped apart. Uhg!
And here is the area ready to brush and patch.
Note...last time I put the welding holes in the good (new) panel, and attempted to weld into the old (rusty) mount panel. I CAN still learn...sometimes! This time I reversed the operation. I drilled the holes into the rusty panel and welded through into the new panel. This worked much better.
I brushed, ground, and finally drilled the mount panel in preparation for the patch.
Once again...don't forget to prime!
Along the suspension tower I did still drill the weld holes in the patch.
Panel on.
And following all the grinding and hammering...
So...another week down. This week I only have the rear body mounts to replace...the ones that mount to the spring tower diagonals. And, then, comes the elephant in the shop. I have to switch from bodyman/welder to millwright. I have to fab the new wood insert for the dash. Fun, Fun!?!
Until next week...