Jabiru J450 Constructors Manual
Post-Paint>Fuselage>Firewall forward>Final assembly
Tuesday, April 6, 2010
270 of 343
Post-Paint>Fuselage>Firewall forward>Final assembly
Objectives of this task:
To complete all fitting work in the engine bay.
Materials required:
Card #15 “
Spares
‟
Card #22 „
Hot air mixer box
‟
Card #23 „
Oil bottle
‟
Card #25 „
Cabin heater
‟
Prepare the muffler
Fit the inlet air heat shroud to the muffler
with 2 large hose clamps: align the shroud as
pictured with the cutaway in the shroud just
touching the exhaust pipe.
Tighten the hose clamps firmly.
Fit the cabin heater heat exchanger to the
exhaust pipe and push up until it touches the
muffler and tighten the Allen head cap
screws.
Fit the muffler
Remove the red sealing caps from the ends
of the exhaust pipes and fit the pipes into the
inlet holes in the front of the muffler.
Hold the muffler in place by fitting the
supplied springs from the tags on the muffler
to the tags on the exhaust pipes as shown
arrowed in the photo at right.
Check if the muffler is touching on the set
screws (arrowed in purple in right) that hold
the cover directly above the muffler: if the
muffler
is
touching these screws it could
eventually wear a hole in the muffler, so
mark any spots where the set screws are
touching, remove the muffler and use a
hammer to tap a small indent into the top of
the muffler. Refit the muffler and recheck.
Heat
exchanger
Shroud
Hose
clamps
Spring
Spring
Set
screw