Sunday, May 19, 2013

Fuel System, Part 2


After a considerable wait, the Viking Aircraft Engines fuel module finally arrived.  The following picture only shows the manifold with the 1/4 to 1/8 NPT connector and the fuel flow transducer (Red Cube).  They have now been joined with Loctite 567 thread sealer.


Down stream of the manifold will be the fuel pumps.  I am currently awaiting the arrival of some AN3 to 5/16 hose barb fittings from the UK.  I initially ordered the 7-8 mm for the 5/16 barb and needed the 8-9 mm, so they are enroute and once here, will enable me to continue the installation of the complete fuel module.  Stay tuned.

Now, a week later....

Once the hose barb fittings arrived, it was a quick matter to bend up some of the 3/8 aluminum fuel line and then drill one additional hole in the seat bottom bulkhead and begin routing the lines.  The terminus of each line was snaked through the snap bushings, flared and the fittings installed as shown below.


Next, the fuel manifold and fuel flow transducer were temporarily mated to the fuel pumps, as shown below.


 
Now it was time to start spec'ing the installation location in the forward compartment.  The pumps were uninstalled and the forward portion of the fuel module was installed.


 After I was happy with the location, I re-installed the pumps and identified where they would need to be installed.  Finally the last 2 lines, one from the fuel flow transducer to the firewall shelf and the fuel return line, were plumbed into the fuel module and installed into the compartment, as shown below.


Fuel module sans the pumps.


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