Bristell B23
Airplane Maintenance Manual
Chapter 78
Issue: 30-Sept-2020
Chapter 78 Page 3
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Remove the springs (3) from the exhaust pipes (2)
attaching to the muffler (1).
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Remove individual pipes from the necks on the engine.
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Remove springs (3) and release the heat exchanger from
the muffler (1).
Installation
Tools needed:
wrench size 10, 12
pliers
small wire hook (spring
removal/assembly jig)
See Fig. 1.
▶
Install the exhaust pipes (2) to the engine necks. Mind a
proper arrangement, each pipe is designed for specific
necks. Put the washers and screw the nuts on the bolts
of the engine exhaust necks, do not tighten the nuts.
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Install the muffler (1) to the exhaust pipes (2) and secure
the tubes by means of springs (3).
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Gradually tighten all nuts of the flanges on the engine
necks.
NOTE
Ensure the sufficient space between the exhaust pipes and the other
installed parts.
Check
WARNING A burst or leaky exhaust can expose the crew to danger presented by
carbon monoxide or can result in engine power loss and possibly fire.
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Check the exhaust system very carefully.
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Check the exhaust system for cracks. Pay special
attention to the following areas:
•
muffler in the area of the input and the output pipe and the collector
head
•
all welds and their immediate surrounding
▶
Carefully check all areas showing local overheating
caused by exhaust gases.