The next thing I did was to rivet all the components of the firewall together, except the F-601K-1 recess. Leaving the recess out will allow a good access through the firewall and make installing the rudder pedal brace much easier.
As the firewall keeps fumes and liquids in the engine compartment from entering the cabin and some of the bent corners have unavoidable openings, especially around the firewall recess and the lower corners of the firewall, I will need to seal all openings with fuel tank sealant after skinning the fuselage.
Time: 6 hours.
Leonard's RV-7A Build 