Finished converting the inner plenum . It took four separate passes with the phosphoric acid. The nature of the surface rust took more time with wet acid to covert than anything else i have worked on. I need to reapply one more time to disolve the coating the acid leaves behind, then cleanup with fresh water. Still not sure if i want to paint with mastercoat silver or leave it to fog with a wax/oil product.
I struggled with the spot welds along the top of the cowl and decided to cut it flush with the flange for the upper panel. No way to get a seam splitter in that space due to the vent duct obstructing access. If you look at the patch panel, you will see what i proved that no way was that new cowl panel going to slide under the upper panel flange without bending the flange outward, mangling the panel. I plan to cut off and butt weld the top seam to the right and left of the fender mount. I will try to get the section of cowl flange behind the fender mount to slide in place. Wish me success.
