continuing to drill out poorly set back rivets from the first attempt at setting the stiffiners for the firewall. I'm using High Temp silicon sealant to provide the barrier for oil and fumes. This is easier to work with then using pro seal. Its not as resistant to gas but these should hardly see gass on them. More oil and fumes. The upper right weldment is complete all rivets have been drilled and reset. What a pain.
