During the last ~2 weeks I bounced around a bit, depending on what needed to be accomplished (and to afford time for curing/drying/cogitating/omphaloskepsis). Nothing earth-shattering, except to mention that ALL the remote boxes have either been installed or holes have been drilled for their eventual installation. Having so many remote boxes made it quite a challenge to locate everything behind the panel - but they will all fit. Specifically, I accomplished the following:
- drilled a few holes to attach Garmin boxes; lots of planning; modified left avionics shelf for GAD29 and IBBS attachment
- installed GEA24, GAD27, GAD29, IBBS and left avionics panel
- installed CO detector, identified and routed many loose wires through firewall passthroughs; took off upper and lower cowl, and locked remaining camlocs
- uninstalled GAD29, IBBS, and 4 connections to GEA24; drilled 4 holes for main power bus connector and attached connector; reattached aforementioned items
- sanded inlet ramps, epoxy/flox/micro of aft edges (will smooth out so baffle rubber will close neatly around the prior gap)
- sanded epoxy/micro on upper cowl; bondo-filled all holes holes and sanded (3x repeated); coated all sanded areas with light layer of epoxy
- installed fuel pressure sensor and manifold pressure sensor; completed a few odds-and-ends
- started installing the exhaust pipes - installed the hanger for tailpipe, and placed and loosely attached the aft and forward exhaust pipes (used nickel anti-seize paste at slip joints)
- finished installing exhaust system; torqued flange nuts 16 lb-ft; drilled out 2 LP4-3 rivets from right heat vent and installed cover w/red RTV
- prepared and installed heat muff assemblies; prepared scat hoses for vents (cut, trimmed, RTV’d the length of each hose); organized hardware
- Installed vent t-splitter that directs hot air to left/right cabin floor vents; installed a few scat hoses, while leaving others off for access (for fuel line penetrating cabin - prosealed the fitting to the firewall, but will need to final-torque nut and fuel line later)
View behind the panel - damn, that's a lot of wires! Avionics shelf was fabricated (next pics) to hold the IBBS battery (black rectangular box in the center) and GAD29 (underneath shelf; not shown):
Fabricated left avionics shelf (bolts underneath panel and subpanel) and attached the GAD29 box underneath:
Attached IBBS battery to the top of the left avionics shelf:
View from below - and yes, those wires will be tucked away and tied down:
CO detector mounted to right subpanel:
Another view of left avionics bay:
Where the heck to I put the main power distribution center? Thanks Ken B. for suggesting the subpanel (forward section) in front of the pilot - perfect fit (shown here, not yet installed):
However, before I installed that power distribution device (shown here as 4 phillips head screws), I had to disassemble parts of the left avionics bay. 2 steps forward, 1 step back...
Finally, all that crap is installed:
4-2-1 exhaust for the IO-390 Lyc ... here is the final exhaust pipe. All areas of contact between exhaust pieces need anti-seize paste. This nickel-based paste gets on everything.
A little out of order, but I finalize the inlet ramps for the top cowl - the white stuff at the top is micro/epoxy, sanded smooth (and eventually epoxy clear-coated). The while stuff at the bottom is actually several applications of bondo, sanded smooth as well. The latter section is ready for paint (or at least the final sanding and priming before paint):
Another view:
Installed an exhaust hanger:
Exhaust pipes are #2 and #4 from left to right (#1 and #3 are the air induction pipes). Those pipes fit exactly one way, and it took me more than one try to get it right.
Right side of engine, showing the exhaust pipes:
Modified the right air vent and red RTV-ed the openings to prevent leaks:
Underside view of aft part of exhaust system:
Heat muffs, in the middle of installation (only the frames shown):
Vent distribution pipe (splits scat tubes to left and right cabin heat vents):
Heat muffs, installed:
Scat tubes, cut and RTV-ed along sides, so the strings don't unwind over time:
Although I've installed several of the scat tubes, the pics will be shown in the next blog post.
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