Monday, November 26, 2018

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