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Smell in cockpit

in 912 / 914 Technical Questions 11 years ago
I recently purchased a new Bristell LSA. I have noticed a burning smell whenever the heater is connected to the ventilation system . I originally thought it was just a new paint smell , but it has persisted for almost 50 hours and is not there if I leave the heater disconnected. Mark McLachlan

  • Re: Smell in cockpit

    by » 11 years ago

    Hi Mark,

    I'm not familiar with that plane's systems to have a good answer. What I would do as a mechanic is remove the cowl and look for anything up against the muffler or exhaust pipe to start. If something is too close or up against a hot object it might be able to be moved or apply a heat shield to the problem area.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell

    Thank you said by: Mark McLachlan
      
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  • Re: Smell in cockpit

    by » 6 years ago

    Check for tiny cracks in the muffler. I have a Bristell with a 912is, and the long exhaust tubes required by the rear positioning of the muffler makes it specially sensitive to vibrations. Also, the muffler is made of very thin material.
      
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  • Re: Smell in cockpit

    by » 6 years ago

    I get a burning rubber smell in the cockpit of my Eurostar when I turn the cabin heater on. I think that I've concluded that it is the soles of my shoes as the outlet is right between the rudder pedals. I'm not suggesting that this is the source of your problem but it would appear that you don't have to heat some types of rubber/plastic too much before they start smelling. If you have some such parts in the system you could try wrapping them in foil to see if they are the source of the problem.
      
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