Fuel tank venting

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Cub822

Well-Known Member

Supporting Member

Dec 28, 2019

I’m progressing on my recently acquired but never finished S-1 project.
Original builder had provided for crankcase venting via a tube from firewall to tail spring.
Adjacent to the fuel tank are 2 bungs and fittings in the vent tube. I assume we’re intended be incorporated into fuel tank venting?
Seems conventional method is venting down gear legs.
Pros and cons either way?