I painted the underside of the plenum with some two-part epoxy paint which matches the baffles. I wish I had ordered this paint prior to painting the baffles since it’s much more solvent resistant than the rattle can paint I used on them.
Between coats, I knocked out a couple of other small tasks. First up was to wrap the engine mount tube with some silicone wrap where the fuel overflow tube is tie-wrapped. I’ve read cautions about tie-wraps sawing through engine mount tubes due to vibration and trapped abrasive particles. I’m not sure how likely that is here, but better safe than sorry.
I also fabricated the sniffle valve drain line and anchored it to the sniffle valve with a short piece of MIL6000 hose. The line parallels the exhaust pipes, but jugs slightly left to clear the oil drain fitting. The aft end is flush with the end of the exhaust pipes and includes a 15º turn down to match them.
I fabricated a short stand-off to space the line away from the exhaust brace. This was primarily done to make the line parallel with the exhaust pipes.
