My Beetle Restoration

Tag: donor frame head

New Donor Frame Head

by on May.14, 2018, under Chassis

I found a great deal on a 1965 donor frame head assembly in the classified ads at www.thesamba.com and just had to buy it. It included the frame head and Napoleon hat and was $75 + $50 shipping. It was shipped by placing two boxes over it, taping them together, and then wrapping it with stretch wrap. Nothing was placed inside to protect it, so it was of course a little banged up when it arrived. Nothing too serious, but I just don't understand the poor packaging job. I guess I should be accustomed to it by now as everything I have ever bought like this from California has just been thrown in a box and shipped with absolutely no protection. I've requested proper packaging, offered to pay more for it, and been told that it would be, but have yet to have something arrive that way. Overall, I am pleased with the condition of the donor part and am considering using the Napoleon hat and possibly the bottom plate. The bottom plate is quite a bit different than the original, but appears to be in good condition and is constructed of the thick, original German metal. I can't purchase one that would be a closer match that is going to be in the same condition and as heavy-duty. It will be a lot of work getting the Napoleon hat and bottom plate off, but it will hopefully be worth the effort.


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Disassembling The Donor Frame Head

by on May.22, 2018, under Chassis

Well, to start, nothing about disassembling this frame head was easy. Especially if you are trying to preserve the parts to reuse them. It was constructed for structural strength and was not meant to be easy to take apart. Removing the spot welds isn't difficult, but just take a lot of work. The seam welds are another story. Separating the parts that are seam-welded almost always requires sacrificing one of the panels to cut them apart. I started out trying to preserve all the pieces, but finally decided to choose the pieces I wanted the most and do whatever I needed to do to make that as easy as possible. In this case, I really wanted the two lower sections on the sides of the frame head body where the bottom plate is mounted, the Napoleon hat, and as much of the tunnel as I could preserve. I really wanted to save the bottom plate as well, but it was just too difficult to separate it from everything else with all of the seam welds. And although it looked in really good condition from the outside, the bottom plate had deep pits in it where it was covered by the Napoleon hat, the tunnel, and frame head body. I think that the aftermarket bottom plate I purchased will be just as strong as this one considering all of the rust damage. Anyway, I didn't really have a choice in the end and made the sacrifice. Overall, I am really happy with the condition of the parts that were saved. The Napoleon hat is in better shape than the other donor one I purchased and I plan to use some parts of the tunnel section and the lower frame head body sections as well.

First, I carefully removed the undercoating on the bottom plate. Like I said, it appeared to be in really good condition from this side of the plate. I was really hopeful at that point that it would be the same on the other side, even though I could see some pitting through the tunnel opening. I uncovered what I think is a date printed on it of 1.21.76. I'm not sure that is the case here as the frame head was reported to be from a 1965 model.


Next, I used a wire wheel to remove the paint and expose the spot welds. I also marked the ones that I wanted to drill out with a marker. Just like on the tunnel, there are two different types of spot welds on the area where the floor pans were attached. The smooth, even welds are the ones that actually penetrated and bonded the Napoleon hat to the bottom plate and the raised, uneven welds were done at a lower voltage and only bond the floor pans to the upper side of the Napoleon hat. Again, I learned that the hard way.


I then drilled out the spot welds that attach the Napoleon hat to the bottom plate. The hardest areas to separate were where it was seam-welded together. On one side of the Napoleon hat, almost none of the spot welds penetrated because there was too much space between it and the bottom plate. They apparently seam-welded it in that area to compensate. Because of that space, I was able to get a thin cut-off wheel between them and cut through the welds. With the Napoleon hat heavily seam-welded to the tunnel, I just cut through the tunnel so that I could remove it. With the Napoleon hat off, I was both pleased with the condition of the inside of it and not so pleased with the heavy pitting in the matching area of the bottom plate. Apparently, a lot of water was able to get inside the frame head over the years.


By the way, I found that my jack stands worked great for supporting the frame head while I was working on it. The rubber pads grip it and keep it from moving around.


With the Napoleon hat removed, my next task was to remove the lower sides of the frame head body where it is attached to the bottom plate. To do this, I first cut off the areas just above them on both sides and then cut through beam mounting plate on the front to free them there.


It was at this point that I realized just how difficult it was going to be to remove the lower body sections from the bottom plate. The two were seam-welded together and there were was just no easy way to separate them without damaging them both. I really just needed the body sections, so I just cut through the bottom plate in the areas where they were attached. I was a complete bonehead and didn't realize that I was cutting through both layers at one point on the first one. In fact, I didn't notice until I turned it over. I can weld the cut, but really felt sick when seeing it. When cutting the other side, I was very careful not to repeat the same mistake. Once it was cut out, the tunnel was free and I just needed to separate it from the tunnel.


Lastly, I just had to remove the beam mounting plate from the tunnel. They were attached by seam welds, of course, and I just cut out the area of the beam plate where they were attached. Disassembled, finally. The pictures may make it look simple and quick, but I spent several hours on several evenings to get this accomplished. And I still need to clean up the parts I'm going to reuse by removing the leftover panel remnants that were cut out during the removal process and the spot welds.


Mission accomplished and I now have a new donor Napoleon hat, two lower frame head body sections, and a tunnel section to use on my chassis. Can't wait to get to the repair and assembly part of this project!



Follow-up Note (6/9/21): I determined that the parts from this frame head were just too different than my original frame head and purchased a more correct model that matches much better. More details to follow.

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Disassembling, Preparing, and Welding On Donor Frame Head #2

by on Jun.25, 2021, under Chassis

Over time, I realized that the first donor frame head was just too different to use on my chassis. It is from a 1965 and is a slightly different design than mine. It's close, but I would have to alter the pieces of it I intended to use too much and would make the replacement more complicated than it needed to be. I found a really solid 1963 one for sale in thesamba.com classified ads and purchased it. It was an exact match. It arrived in great condition and was very well packaged for protection from shipping damage. In fact, it was by far the best packing job I've ever seen. These are the pictures that I received from the seller before I purchased it:


After much consideration, I decided to use the outer portion and front plate of this frame head and removed the tunnel and bottom plate portions. I removed large areas of both to make it easier to remove the areas that were spot and seam welded. I included a picture below that shows all the pieces that had to be removed.


Here's what it looked like after everything was removed:


I then cleaned it in the parts cleaner, briefly soaked it in rust remover to loosen up the rust, and then lightly sandblasted half of it just to see what it would look like. I was very pleased! It is very solid metal with only a slight bit of pitting. Overall, it is a much better thickness of metal than an aftermarket part and almost identical to my original.


I placed the new part on the tunnel to check the fit and was surprised how well it fit. On the top, it fit very well and was sprung outward on the bottom sides a little, but was easily clamped down for a very snug fit all around.


Next, I sandblasted the entire part, sprayed primer on the outside of it, masked off and sprayed U-POL Weld #2 Copper Weld Through Primer on the inside areas that are going to be welded, and sprayed Eastwood Matte Black Rust Encapsulator on all other areas on the inside that are not going to be welded.


One final check of the fit before welding on.


Welding time! I welded the donor frame head part on and dressed the welds. Most of them will be covered by seam sealer, so appearance isn't all that critical. After many years just thinking about how I has going to accomplish this, this part is finally done. If I can give one piece of advice to anyone out there doing a restoration - just get started and don't be afraid to make mistakes. You will likely make mistakes, but at least you are making progress. Half of the challenge is undoing what you've messed up. Progress beats procrastination every time.


I sprayed some primer over the bare areas that were just welded to protect it until I start to prep for paint. Now it's time to flip it back over to install the new fuel line and to weld the bottom plates on the new frame head and the tunnel.


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