The left front exhaust had previously been only tacked in place, so all seams were fully welded. A couple of stainless hooks for attaching the springs were then carefully positioned and welded onto the exhaust. Once the welding was completed, the exhaust was pressure tested to check for leaks. Two small pinhole leaks were found near the ball end, and these areas were ground down and touched up with the TIG welder. After this touchup, the exhaust passed the pressure test.
All exhaust tubes were then wrapped with a fiberglass cloth material to protect nearby hoses and wiring, which was clamped at both ends with stainless straps.
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| Spring hooks welded in place |
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| Completed exhaust. Fits perfectly! |
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| Exhaust tubes with heat wrap |
We had previously repositioned the boot cowl slightly, and the bottom edge was now a little long, so this was trimmed down with a Dremel tool.
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| Bottom edge of boot cowl trimmed |
Work began to add two small NACA ducts. These openings will be used to feed fresh air into the cabin through two adjustable vent ducts, one for the pilot and one for the passenger. A template was made from the plastic NACA duct parts, and holes were cut in the aluminum side panels by using nibblers and a Dremel tool. These panels were previously painted, so I'm trying to be careful to protect the paint while doing this work. Hours: 21
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| New NACA duct hole in the side panel |
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