Flying off my time in my RV9A. Having trouble with carbon monoxide levels.
Seem to run as high as 40 ppm without any cockpit ventilation opened up. When the vents are open it drops considerably - to zero usually.
Two questions:
1) is there a CO level that is considered acceptable
2) how can I find the source of the exhaust leak that must be producing the CO?
(I have visually inspected the exhaust system - vetterman with mufflers- and it appears intact.
Thanks
Seem to run as high as 40 ppm without any cockpit ventilation opened up. When the vents are open it drops considerably - to zero usually.
Two questions:
1) is there a CO level that is considered acceptable
2) how can I find the source of the exhaust leak that must be producing the CO?
(I have visually inspected the exhaust system - vetterman with mufflers- and it appears intact.
Thanks
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