Check out these pictures of custom Volkswagen restoration work!
Below shows a poorly repaired filter, this is a rare part, so it was worth restoring. To restore this component, I first cut the surface off and used as a pattern to transfer the detail onto a wood buck that I made. This is an example of simple, cheap, and easy tooling that took me about half an hour to make. I then took a blank piece of material (for this project just mild steel) and jig-chased into the buck definition. From there I tig-welded the new piece onto the original body. Then all it needed was metal finishing and a little brazing to seal the center pipe, so oil doesn’t leak. The customer was overjoyed that it could be rescued.

