Piper J3
Well Known Member
I found significant cracks in my muffler during Annual Condition Inspection. I have replaced entire exhaust system with a unit that has 70TT and all is good...
I have been following discussions about Carbon Monoxide (CO) related to Rotax exhaust systems that are held together with springs. I decided to install a CO detector and found a nice self-contained unit on Amazon for a very reasonable price. https://www.amazon.com/dp/B076S6KBP2?psc=1&ref=ppx_yo2ov_dt_b_product_details
I used small pads of 3M Body-Side Molding Tape to mount the unit to the instrument panel. The tape provides a standoff and allows air to recirculate to the back side where the sensor is located. I also added 3M Black Vinyl electrical tape to the aluminum sides of the unit so it has similar appearance to iPads I use for navigation. I had screen protector left over from the iPads so I cut a pattern for the CO detector to eliminate glare. The installation photo is without the screen protector.
PIREP: I did a round-robin flight to four out-laying airports with full stop and taxi back. Detector shows zero CO during flight and zero CO during taxi with canopy closed. I saw 10 ppm during taxi with the canopy open for ground ventilation. I suspect engine exhaust is swirling into the open canopy during taxi. When canopy is closed, the detector again shows zero in cruise flight.
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I have been following discussions about Carbon Monoxide (CO) related to Rotax exhaust systems that are held together with springs. I decided to install a CO detector and found a nice self-contained unit on Amazon for a very reasonable price. https://www.amazon.com/dp/B076S6KBP2?psc=1&ref=ppx_yo2ov_dt_b_product_details
I used small pads of 3M Body-Side Molding Tape to mount the unit to the instrument panel. The tape provides a standoff and allows air to recirculate to the back side where the sensor is located. I also added 3M Black Vinyl electrical tape to the aluminum sides of the unit so it has similar appearance to iPads I use for navigation. I had screen protector left over from the iPads so I cut a pattern for the CO detector to eliminate glare. The installation photo is without the screen protector.
PIREP: I did a round-robin flight to four out-laying airports with full stop and taxi back. Detector shows zero CO during flight and zero CO during taxi with canopy closed. I saw 10 ppm during taxi with the canopy open for ground ventilation. I suspect engine exhaust is swirling into the open canopy during taxi. When canopy is closed, the detector again shows zero in cruise flight.
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