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The engine wiring is complete and the next step is to install the radiator, coolant lines, and the fuel pump. All wire leads that were too long were shortened to save weight. Holes were drilled through engine supporting webs so that plastic wire ties could secure the wires close to the engine surface and to prevent vibration failure and scuffing of wire insulation. The small red wire from the water temperature sensor was passed through small diameter tubing, and the tubing was glued to the cylinder to prevent lead vibration and insulation scuffing.
The alternator power leads are behind the flywheel on the right side and pass directly down through the engine mounting plate to the regulator. A grounding wire passes from the engine mounting plate to one leg on the cage engine mount. One (positive) wire goes forward from the regulator to the cockpit area. |
Only five conductors will come from the engine forward to the cockpit area. The top right hand terminal will connect the water temperature guage. The next terminal down connects to the "Tiny Tach" pickup wire. This wire is hidden under the high tension lead boot on the lower ignition module. The ground for the "Tiny Tach" wire shield will be connected to the solder terminal held by the button head cap screw. The third terminal down is connected to the engine tach lead and will not be used except for testing and experimenting. The next four terminals are connected to the ignition modules and pickup sensors. The sensor pickup lead was cut with each cut end placed in the left side of the terminal block. A loop was placed on the right side to reconnect them. This configuration will let me run some timing change experiments. The last two terminals connect the ignition module grounds to the individual grounding and to the double safety switches.
This gives three conductors coming out of the terminal block toward the cockpit area. The other two leads are from the EGT sensor. Electrical grounds for the water temperature sensor and other electrical components are conducted through the fuselage cage.
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