I predicted this page based on two prior episodes of making fire wall penetrations. This is Van’s traditional approach of using a grommet of appropriate OD and having me ‘punch’ out the center using a 1/2” socket. The metal braided cable is the shielded generator output on its way to the (newly relocated) regulator.
This grommet will also pass the 3 cables that control the engine: throttle, choke & heat shroud.
Center Firewall Penetration