Aircraft Service Manual
Jabiru Aircraft
Pty Ltd
JTM001-1
J120, J160, J170, J200/J400, J230/J430, J250/J450 Variants
REVISION
1
Dated: Nov 2011
Issued By: SW
Page: 168 of 233
Figure 140
– Hot Air Duct Assy
13.10 EXHAUST SYSTEM
13.10.1
DESCRIPTION
The exhaust system consists of exhaust extractor pipes running from the cylinder heads to the
muffler. In some cases the individual extractor pipes are connected into manifolds before
reaching the muffler.
The muffler is attached to the extractors / manifolds using springs.
Note that the majority of exhaust maintenance is detailed in the engine Instruction & Maintenance
Manuals.
13.10.2
EXHAUST SYSTEM REMOVAL
Remove both top and bottom engine cowls.
Remove springs.
WARNING
Never remove coupling spring with a sharp object or one which can mark the spring material. A
rounded screwdriver shank or a hook fashioned from ¼" bar stock is ideal.
Remove muffler assembly.
Disconnect carburettor heat pipes and, if necessary, remove the heat muff from the muffler.
If necessary, remove exhaust manifolds from engine. Note that loosening the screws holding the
extractors to the cylinder heads will often assist in removing muffler.
