Avionics

MAP sensor wired ( 2 hrs )

Connected MAP (manifold air pressure) sensor to wiring.  Looped extra wire for strain relief and "do-over" option.  Used several layers of heat shrink tubing to strengthen joint area, too.

after solder, 1st layer heat shrink. 
Two more layers ready, nested below

wrapped engine mount tube with silicone tape,
then secured wiring loops with cable ties

Added cushion clamp (to right in pic).

Avionics

EarthX battery warning via GAD27 ( 2 hrs )

Will soon be installing EarthX battery, model EXT680.  This LiFePO4 battery includes a BMS (battery mgmt sys) w/ LED battery fault light indicator to alert you to cell health and state of charge.  I'm wiring this warning into my G3X display via Garmin's GAD27 unit.  Added wire from Pin #13 in the J243 connector on the GAD27 to use the Discrete #5 function (programmable alert).  Stein Air provided pre-pinned brown/blu stripe wire.  I opened the 50 pin connector, inserted new pin into #13, routed in wire bundle to center, then forward to RH firewall opening along with MAP sensor wire.  Will connect once battery delivered.  [Note:  BMS includes over discharge protection, over charge protection, short circuit protection, excessive cranking protection (temperature sensing) in addition to integrated cell balancing technology] 

connector prior to
adding wire

partially disassembled. 

Re-assembled and re-installed onto GAD27. 

Whole process was easier than I'd anticipated

Ta-Dah !   wire for Discrete #5 now

ready to connect to EarthX at BMS

Avionics

EAA Technical Counselor Inspection

Terry Moushon, EAA Tech Counselor visited Sat am, Dec 1 to inspect build quality ( his last inspection was Jan 23, 2018).   His mentoring and advise during his build of an Vans RV10 a couple years ago was major reason I was comfortable with starting my build.  He was impressed with progress, attention to quality and safety.  He spent a lot of time checking engine installation, wiring and the instrument panel.  I was pleased he documented a very positive report for EAA records.  Plus, he provided several good ideas for steps ahead, and updated me on a few maintenance items he's experienced now that he has over 300 hrs on his plane.  Thanks Terry !

After a thorough inspection, time for a pic.  Terry's on the left.

Avionics

P Mag connection ( 4 hrs )

While preparing to connect "P-Lead R" to right Mag, discovered statement in E-Mag install guide to separate plug leads.  Contacted Trent at E-Mag, who said up to 5" can be bundled, but more will cause induction coupling.  So....spent couple hours revising all lead wires for P Mag using the recommended 1/4" silicone tubing on cable ties to create separators.  Next, connected P Mag per p. 26 schematic in Install Guide and Stein Air's schematic:  "P-Lead R" to Pin 4, with shield wire connected to Pin 1 as ground (added separate wire from engine stud nearby also to Pin 1)  This creates 3 ground paths including P-Mag itself bolted to engine case.   "P Mag 3A" connected to Pin 5, and Tach Output (white wire only) connected to Pin 6.   Finally, aligned blast tube to insure directly on "neck" area of P Mag per Install Guide.  Wrapped oil line with silicone tape (red) prior to applying cable ties.

revised so P Mag leads are separated...RH side

note in E-Mag install guide.

LH side

LH side.  Only minimal contact at cushion
clamps, far less than 5" 

Pin 1, 4, 5 and 6 connected.
Jumper was pre-installed between 2 and 3.

Pin 1, 4, 5 and 6 connected.
Jumper was pre-installed between 2 and 3.

connector re-installed. Ground terminal "loose"
at stud at unused aux drive...for now. 

p 26 schematic in E-Mag Install Guide for P Mag connections 

Blast tube positioned directly blowing on P Mag
"neck".   Red silicone tape protecting Oil Line

blast tube positioned per E-Mag
instructions 

Avionics

Wiring to Fuel Flow Transducer ( 2 hrs )

Connected "red cube" Fuel Flow Transducer (Electronics International FT-60) to wires from GEA24 J243.  Stein Air's Chris confirmed they recommend using the OLC-1 connectors supplied with transducer.   I staggered the 3 connectors to nest for a tighter package.  Used layers of heat shrink tubing followed by wrapping with silicone tape, then cable tied into bundle with CHT sensor wiring.

Instructions for OLC-1 connectors... 
Testing alignment with sample of wire

wrapped with silicone tape, prior to bundling with CHT wires

cable tied to bundle with CHT wiring

Avionics

Mag P-Lead, Oil Temp, Fuel Pressure, Oil Press sensors connected ( 3 hrs )

Completed installation of P-Lead and gnd wire to LH Mag.  Connected Oil Temp sensor and bundled wires w/ P-Lead.  Soldered Fuel Press and Oil Press sensors at LH firewall, leaving extra lengths (just in case require re-do, etc).  Wrapped engine mount tube with silicone tape for protection, then cable tied "loops" of sensor wires to tube.

top view showing wire routing to LH Mag & Oil temp sensor

Add caption

first pressure sensor wiring soldered
connections with 2 layers heat shrink tubing

both press sensors connected.

silicone tape over engine mount tube, then cable tied
 "loops" of  wiring 

nested wiring and secured with cable ties

 

Avionics

Mag P-Lead, etc ( 3 hrs )

Attached two -12 size cushion clamps to engine mount near LH firewall and Left Mag to route wires for Fuel and Oil Pressure sensors, Oil Temp sensor, and P-Lead for Mag (combined w/ a -4 and -3 clamp).  Clamped wires along upper rear engine mount tubing.  Referenced Stein Air's schematic for GEA24 J243 connector for wire to wire connections.   Josh Swenson at Stein provided tip for connection of P-Lead with ground wire:  After uncovering braided shield wire,  push braid backwards to open weave, then pull single wire for P-Lead out of open mesh ( I used a toothpick).  This enables the braided shield to become a "wire" to directly crimp on ring terminal for gnd connection (instead of soldering a wire to section of braided shield).  After practice with couple pieces, I decided this worked well for the P-Lead.  No soldering, only #10 ring terminals added to ends.   Included layers of heat shrink to each wire.  Even remembered to include the MS25171-1S silicone terminal cover for the P-Lead post.

routing wire from LH firewall opening

P-Lead & ground connections ready to
  attach to LH Mag.   After pic, slid
2 layers of heat shrink  over "joint"

test: pulling center wire out
through braided shield