Aircraft Technical Manual
J120, J160, J170, J200/J400, J230/J430, J250/J450 Variants
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Figure 152 – Hot Air Duct Assy (all J-Series)
7.10 Exhaust System (all J-Series)
7.10.1 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 Maintenance Manuals.
7.10.2 Exhaust System Removal
Tools as required in Section 7.1
Screwdrivers
Rounded hook
L2 or LAME (A&P or LSA Repairman / Maintenance)
L2 or LAME (A&P or LSA Repairman / Maintenance)
Remove both top and bottom engine cowls (see Section 7.1)
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.