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A second "C" pipe was purchased. It was used to obtain the elbow required to reach the muffler. The muffler to pipe connectors were removed from the original pipe and a snow mobile engine exhaust system coupler added to connect the original to new pipe. This change increased exhaust flow path length by nine inches.
To support the muffler, a tab was welded to the rear that attaches to the upper "V" mount truss bolt. To support the front, two legs were welded to the muffler. |
To prevent exposing the exhaust to flight positive dynamic pressure and to direct exhaust noise to the rear, a flow reversal was constructed from 1.5 inch OD sink drain trap. High temperature RTV provides a seal between the pipe and the stingers.
To prevent oil and water vapor condensate build up in the muffler and the possibility of tail surface spatter, a drain nipple was threaded into the bottom rear of the muffler. A drain tube will be installed so that any liquid will exit below the tail boom tube. |