Started backriveting the firewall together this morning. I spent the bulk of the time figuring out how to approach the problem. I elevated the firewall with 2x4s and 1/2" fiberboard and then used my tungsten bucking bar laying on its side under some wood to elevate it. Seemed to work good, but not particularly fast initially as I kept flipping it over to check the results (no proud rivets).
Close up of the bucking bar going under a rive for backriveting.
