Jabiru J450 Constructors Manual
Pre-Paint>Fuselage>Firewall forward>Firewall fittings
Tuesday, April 6, 2010
49 of 343
Fit the right hand cable collar: measure in 290mm from the right hand side of the firewall and
up 65mm from the upper bend and drill a 22mm hole through the firewall then fit the cable
collar with 6G stainless steel screws (drill 1/8” holes through the firewall plate only for these
screws, they will self-tap into the plywood firewall). Drill and blank the 2 holes arrowed in
yellow above right with a rivet. The air box right hand side rivets are arrowed in red above.
Battery box and battery
Run a 3/16” drill through the 2 pairs of holes on the right hand mid section of the firewall and
bolt the tie down brackets into place with AN3-6A bolts as shown. Position the battery box
50mm up from the lower bend and fix in place with 4 x 5/32 pop rivets, with a washer on each
side of each rivet.
Put the battery in the battery box with the terminals to the top and secure it with a tie down
strap: loop the strap through the brackets and through the locking buckle with the free end of
the strap pointing down at the front, then loop that free end back through the bottom bracket
and tie it off around the strap and cut to length as shown. Use a flame to melt the cut end.
290mm
65mm
50mm