Exhaust Support
Posted: Sat Feb 18, 2012 10:24 am
Hi Guys
I made my own exhaust system for my Christavia which was a cross over with
straight pipes. I made a small plate (about 3" x 1 1/2") and matched the
two rear center bolt holes for the oil pan. I welded two 1/2 inch (about 10"
long) tubes each pointing down towards an exhaust pipe. I then took a piece
of 3/8 tube and made an open ended triangle that that came down from behind
the engine to one pipe-flattened out an area to clamp to the pipe- across to
the other pipe-flattened area again and then up behind the engine again. A
small piece of 3/8 pipe was welded as a support about two inches away from
each corner that attaches to the exhaust tube. When this was completed and
fitted the two exhaust stacks without any load, it was disassembled and the
two upper 3/8 tubes were slid into the 1/2 tubes (telescopic) and
reassembled. When it was all snug in place and under no load, the 3/8 and
1/2 tubes were welded. I don't think it weighted a pound and was out of way
of everything I had installed. Put about 400 hours on this system before I
put the aircraft away for storage, mostly on floats and have never had a
crack-knock on wood. Will be doing something similiar when I reach the point
with my rebel. Can also use to support throttle- mixture- carb heat cables.
Everything is isolated to the engine. Can't get any pictures for about
another month when I take the aircraft out of storage for Oshkosh.
Steve W.
Rebel #637
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I made my own exhaust system for my Christavia which was a cross over with
straight pipes. I made a small plate (about 3" x 1 1/2") and matched the
two rear center bolt holes for the oil pan. I welded two 1/2 inch (about 10"
long) tubes each pointing down towards an exhaust pipe. I then took a piece
of 3/8 tube and made an open ended triangle that that came down from behind
the engine to one pipe-flattened out an area to clamp to the pipe- across to
the other pipe-flattened area again and then up behind the engine again. A
small piece of 3/8 pipe was welded as a support about two inches away from
each corner that attaches to the exhaust tube. When this was completed and
fitted the two exhaust stacks without any load, it was disassembled and the
two upper 3/8 tubes were slid into the 1/2 tubes (telescopic) and
reassembled. When it was all snug in place and under no load, the 3/8 and
1/2 tubes were welded. I don't think it weighted a pound and was out of way
of everything I had installed. Put about 400 hours on this system before I
put the aircraft away for storage, mostly on floats and have never had a
crack-knock on wood. Will be doing something similiar when I reach the point
with my rebel. Can also use to support throttle- mixture- carb heat cables.
Everything is isolated to the engine. Can't get any pictures for about
another month when I take the aircraft out of storage for Oshkosh.
Steve W.
Rebel #637
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