
Jabiru J450 Constructors Manual
Pre-Paint>Fuselage>Firewall forward>Firewall fittings
Tuesday, April 6, 2010
52 of 343
Electrical components
Use some 3mm aluminium to make backing plates for the solenoid and the earth terminal as
shown below – these are to spread the load and minimise crushing of the plywood firewall.
Draw a line up from each of the 2 blanked off holes (red lines above) and place the starter
solenoid with the mounting holes over the lines and the top of the terminals 30mm below the
top of the firewall. Fix the solenoid into place with 2 AN3-7A bolts, washers and Nyloc nuts.
Fit the main electrical earth terminal (maroon arrow above) by drilling through the pre-drilled
hole in the firewall and fix into place with an AN3-7A bolt, washer and Nyloc nut.
Place the regulator module 50mm in from the side and in line with the bottom of the battery
box (green lines above). Fix in place with AN3-12A bolts, washers and Nyloc nuts.
Inside view
This is how the finished job will look from the inside.
30mm
50mm
Solenoid
Earth
terminal
Fuel
fitting
Cabin
heater
Air box rivets
Battery
Cable collars
regulator