Thursday, September 12, 2013

Patching more holes

Well it appears that there is a bunch more "patch work" needed.
The holes that have been drilled through the skin are many.
I need to focus on getting the shell sealed up.
There is no way to do any of the interior work until I can keep the water out.
I can't invest time in the new floor or replacing the inner walls because I don't want them to get wet.
 
More of the day was spent on the roof.
It figures we have a wonderful mild summer until today.
Mid 90's and some of that wonderful Maryland humidity.


 
Many of the seals look like this.
It will require replacement, not a patch

 
These kinds of holes are the reason the floor is rotten and the interior walls are rotten too.



 
The decision was made to remove the entire panel, where the window is installed, on both sides.
We are going to have a new piece of steel cut and punched and the window reinstalled in the new section.




 
These are what is left of the handles that were on the corners of the roof.
back in the day, they were installed to help the operators climb onto the roof.
I will be replacing these handles.



 
This is the inside of the panels where the windows are mounted. They are a mess.

 
there were plenty of holes on the roof that had been drilled through , for one reason or another.




 
taking a wire wheel to the seam and the rivets showed me that they were better than I thought! 





 
I ground down the area on these handle bases. I do not want to remove the rivets. They are original and I would like to preserve them.
I intend to weld the new handles to the bases so I needed a nice flat surface.


 
These were the holes for the bolts that held the interior water tank in place

 
each were filled and sealed







 
I primed each area that had been cleaned or welded. There will be a more complete priming once all the patch work is complete. This is just to keep it for getting worse...for now.

 
Two more roof areas than I go back to the sides

 
This is the second of the side patches. Two more on this side than I move around.

Tuesday, September 3, 2013

Sheet Metal Work

So I started the sheet metal repairs this weekend. let me start by saying I have great respect for welders after just two days. It, like many other trades are under appreciated. It will take skill and experience to get the results I desire. We will compare these first efforts to the later versions.

I started by guesstimating the size of the patch needed. We ordered material in a 6" width, thinking that would be wide enough to be above the rotten walls and into good existing metal on the walls.
 

I held the new material against the caboose and traced around the new metal. The wall of the caboose is ballooned out because of the rust behind the skin.


I cut the shell and exposed the inside and removed the rusted area.




The metal behind the skin had a rust build up that had to be removed too.



I prepped the edges to accept the welds
 
Removed as much rust from the frame behind the skin

This is the new material to be welded in place

The first pass was good for attaching but not sealed like I want.

I grinded away the extra weld material and it exposed the pin holes that still needed to be sealed.
 


I tapped out the bulge in the old skin and it flattened out nice 



These are some of the pin holes left. I primed the area to help expose them. Since we are going to need to do a skim coat of fiberglass or filler, I think we will be o.k. The real problem is that the existing skin is very thin because of the rust. When welding to it, the existing material was falling apart. The patches may need to be 10" wide. That may get us into better material on the skin.
 
Not bad for the first of many patches.