Ivan's RV-7

Fabricating spacers for the contactorsTimer icon2h

April 16, 2026

I fabricated some aluminum spacers for the main contactors.

Since I wanted to attach one mounting hole of main contactors to the firewall stiffener, I needed to fabricate some spacers to go between the firewall and the contactors.

I machined the spacers with the help of my mini-mill.

The spacer

I used double-flush rivets to keep the firewall side clean and to prevent interference with the contactor body on the cabin side.

The spacer riveted

This is how the installed contactor looks.

The main contactor installed

And the firewall side.

View from the firewall side