On 7/2/2010 11:29 AM, n611gc wrote: > Mine seem to be some sort of check valves. They vent out but not in. > > Is this normal?
No. All header caps must be vented. Wing tanks are either vented or unvented, depending on the system installed. There is no Ercoupe system that calls for one way vents. Sounds like a Cessna cap, a source of trouble in their own world... -- John Cooper Skyport East www.skyportservices.net
