Hmmm...interesting. I blew into the wing tank caps and there was no airflow. When I suctioned however, they were clearly open.
I could not form a good seal on the fuselage cap, so I am not positive that it too is one way, but I am pretty sure it is also. All three caps have the same design, i.e. the vent faces forward. If the wing tank caps are Cessnas, then the center tank cap is as well. I have never seen caps like these on a Cessna, but they could be Ho-shi-Motos as far as I know. They work perfectly, so I have no intention of messing with them. --- In [email protected], John Cooper <j...@...> wrote: > > 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 >
