With the alternate air door complete, it's time to bolt on the air duct for good. But first I had to take it off and remove the duct tape I put on there five years ago to keep stuff out… how time flies:
Photo for posterity showing what the business end of the fuel injection servo looks like – an inlet throat with a butterfly valve and a set of little air metering tubes:
The plans want you to use plain bolts plus lockwashers to keep them from backing out. I decided to use proper drilled-head bolts instead, just to be contrary. The part number for these is MS20074-04-06, in case you're wondering.
Safety wired the pair of bolts on the right side:
And here's the left side. Not my best safety-wiring job ever, but it's tricky to get the tools back in there.
The engine air duct is now permanently attached – bolts at the bottom and screws on top. That's a good feeling after all this time.
I installed the air filter to keep objects from falling into the engine, then taped a plastic bag over the top to keep schmutz from getting all over the air filter:
