The fuel selector requires a 25mm hole to locate the value body, I only had a 20mm Uni bit drill so I filed the hole out to the correct size, thus the scratches to the primer on the center console. Once the center hole is drilled / filed, you then line up the face plate and mark and drilled the mounting holes. It a really nicely made value and it should look lots better once the center console is painted to match the fuselage colour.
Fuel selector installed, plus I managed to scratch the etch primer by not cleaning the bench properly
