Friday, November 30, 2018

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