Jabiru J450 Constructors Manual
Pre-Paint>Fuselage>Firewall forward>Fit firewall
Tuesday, April 6, 2010
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Once the plate is held in place in this manner you can start to fix it permanently with pop
rivets, working carefully around the plate, drilling through the pre-drilled holes in the plate
and through the plywood and taking care to always put a washer on the back of each rivet
(circled above centre) – unless you have long arms you will probably need another person to
help you with this step by holding the washers in place while you rivet.
Be particularly careful when drilling though the plywood firewall – if you push too hard then
the drill can chip a section of ply out when it breaks through the back of the plywood, so drill
using gentle pressure only.
Once the plate has been fully riveted into place use a sharp knife to trim away the insulating
sheet from around the edges of the firewall plate.
Fit a temporary plate (plywood is fine, in the factory we
use aluminium) across the lower centre of the firewall to
hold the plate firmly against the flock filler. 3 screws (2
top, 1 bottom, arrowed) are sufficient to hold the plate in
place overnight while the flock cures.
Next day remove the plate.
This completes the
Pre-Paint>Fuselage>Firewall forward>Fit firewall
task.