Exhaust System for Zenoah 62 (old magneto version)

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Nigel castle
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Exhaust System for Zenoah 62 (old magneto version)

Postby Nigel castle » January 24th, 2018, 3:58 pm

I have an old Zenoah 62 (magneto ignition) installed in a glider tug and it is too noisy for my current flying site.
It currently has the original stock exhaust.

Is there a commercially available exhaust system out there to bring down the noise levels to the BMFA and government recommended limit of 82Db at 7m?

Any help with this would be greatly appreciated.

arthur barlow
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Joined: March 7th, 2013, 5:51 pm
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Re: Exhaust System for Zenoah 62 (old magneto version)

Postby arthur barlow » January 26th, 2018, 8:29 pm

Dle 60cc cannister or or wire wool in the exhaust

Phil Clark
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Location: Chester-le-Street, Co Durham
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Re: Exhaust System for Zenoah 62 (old magneto version)

Postby Phil Clark » February 1st, 2018, 9:14 pm

Muffler isn't the only thing that will effect the noise.

Prop selection can make a huge difference..........a quality carbon prop (Engel Super Silence or Mezjlik) will make a big difference, + going from 2 to a 3 blade will also help.

If you are running the stock carb & insulator block, changing this set-up & fitting a 90 degree carb bend & intake trumpet allowing inlet air to be drawn from inside the fuselage will also help deaden any intake noise.

Re:- muffler.......were you needing a dumpy in cowl type muffler or are you able to fit a headed & a cannister type muffler hing under the fuselage?

Phil


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