Not sure what to think. The caps warn that the hole must face forward. Why would that be the case if they were designed for air to only come out? It really wouldn't matter.
The plane flys fine, no problems at all. I thought that they were to allow air to flow out of the tanks as fuel flowed in. I'm going to inspect them a little more carefully, but I don't want to mess with them too much, as they are definitely working now. --- In [email protected], "Donald" <dongen...@...> wrote: > > > > So when you are using fuel, where does your system get the air to replace the > consumed gasoline? I sure would not want to fly it until I figured it all > out. As John said, there are some different systems in use on coupes, but > three caps that only flow air outwardly are surely suspect. > Glen Davis can tell you what happens when you get a bug in that little hole > in the center tank vent! He got to experience the pucker factor pretty fast. > > --- In [email protected], "n611gc" <genesisinvestmentstrategies@> > wrote: > > > > 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 <john@> 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 > > > > > >
