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Saturday, February 3, 2018

3 Feb 2018 - Fuel line upgrade - engine compartment

Today I was able to replace the fuel line that connects from the fuel pump to the carb.

The old setup was a steel tube about 10" long, connected at the fuel pump outlet.  The tube was angled up near the driver side cylinder head.  A rubber hose about 6" long was connected to that steel tube and the other end of the hose had the fuel filter connected.  A rubber hose about 1' long was connected to the other side of the fuel pump and then connected to the fuel inlet of the holley carb.





This is the new installation using -6AN hoses and fittings.The following parts were used to create the fuel line assembly.  One, 3' SS braided hose with female -6AN ends, one -6AN female hose end, one, -6AN fuel filter assembly with male -6AN ends and one, 9/16-24 to -6AN hose end.

I cut the 3' SS braided hose into two pieces.  One piece is 16.5" long, one end has the 9/16-24 banjo fitting to the holley fuel inlet, the other end has a -6AN female end.  The other piece of SS hose was cut to 19".  One end has the original -6AN female fitting, the other end I installed a -6AN female fitting.

I used a cutoff wheel to cut the SS hose and that worked very well.  I used a large zip tie to mark where I would cut the hose.  The zip tie does an excellent job of holding the SS braid in place while cutting the hose.  Assembling each of the hoses was pretty easy.  I cleaned up the hoses, flushed them out with air then water to make sure no rubber/metal pieces parts end up in the wrong places.  I will monitor the installation for leaks, but so far there have not been any issues.





This is the 9/16-24 banjo fitting to -6AN hose end.

The adapter used at the fuel pump outlet is a male 5/16 inverted flare to -6AN male

This little gem is the modular fuel filter.  It can be disassembled and the filter element can be  removed/cleaned/replaced.