SECTION 37: FUEL SYSTEM

Build Instruction Updates

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Before You Start

Modifications to Consider

• Consider ordering TS Flightline fuel hoses (see Hints sections below) -- and consider if you want two wing root fuel filters instead of one filter in the tunnel. For wing root filter discussions, see this FB thread.
• The electric fuel pump does not come with the kit; order from Van's or elsewhere. If you order from Van's you can get the full kit or you may be able to buy some separate parts. Specifically, if you are using third-party hoses and wingroot filters, all you need to order is:
  • The pump
  • Rubber trim or similar
  • hose clamp
• Consider getting a steel fuel fitting and steel nut
• Many people use an alternate fuel selector valve/system -- e.g. Andair, but note that the lead time for Andair might be nearly one year.
• Consider machined bushings for passing the fuel lines through the sidewall. Note that these (or similar) may be included if you ordered from TS Flightline above.

Hints

Hints for installing TS Flightline hoses

Notes

Page 37-2

Step 4

• The firewall fitting needs to point slightly down to not interfere with the heater valve.
• If you are installing electronic injection, the line from the pump goes to the left side (mirror the hole) and the return line to the right.
• Consider using a steel elbow fitting for the firewall (AN837-6 and the nut AN924-6j)
• The firewall is rather thin, therefore the fitting's rim will not end within the wall thickness, it will engage with the inside washer. Make sure you first hand tighten the nut while adjusting the washer's position to avoid that the rim sits proud of the washer.