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*** Put a 30 mm hole in the middle with a step drill bit (1 1/4 inch). Note: Mark the hole's circumference so you notice when the step drill bit starts wandering off your desired center. Best to do it in a drill press with the doubler strapped down. | *** Put a 30 mm hole in the middle with a step drill bit (1 1/4 inch). Note: Mark the hole's circumference so you notice when the step drill bit starts wandering off your desired center. Best to do it in a drill press with the doubler strapped down. | ||
*** Clamp the doubler below the Vans fuel valve bracket with the center hole aligned (later to be mounted on top of the bracket). | *** Clamp the doubler below the Vans fuel valve bracket with the center hole aligned (later to be mounted on top of the bracket). | ||
*** Pick 6 outer locations and drill #30 holes with good edge distance for 1/8th rivets to secure the doubler to the Van's bracket.<br>[[File:2023-07-15 19-03-28.jpg|300px]]<br>First rough trim back of the Van's fuel valve bracket. Note: the doubler will later sit on top.<br>[[File: | *** Pick 6 outer locations and drill #30 holes with good edge distance for 1/8th rivets to secure the doubler to the Van's bracket.<br>[[File:2023-07-15 19-03-28.jpg|300px]]<br>First rough trim back of the Van's fuel valve bracket. Note: the doubler will later sit on top.<br>[[File:2023-08-11 19-41-02.jpg|533x533px]] | ||
*** Trim the Van's fuel valve bracket so the Andair valve fits onto the doubler. Note that the tunnel walls may shift inwards without the bracket in place. You might have to spread them a bit to cleco your doubler plate in place lateron. | *** Trim the Van's fuel valve bracket so the Andair valve fits onto the doubler. Note that the tunnel walls may shift inwards without the bracket in place. You might have to spread them a bit to cleco your doubler plate in place lateron. | ||
*** Change the order and put the doubler on top of the Van's bracket and check clearance to the Andair valve. | *** Change the order and put the doubler on top of the Van's bracket and check clearance to the Andair valve. | ||
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