The replacement upper right engine mount attach bracket arrived today so I got back to work on riveting the firewall.
The new bracket aligns much better.
![](https://airplane.allanglen.com/wp-content/uploads/2021/07/pxl_20210712_2355577156894332468089552150.jpg)
The AN426AD4-5 rivets are a bit too short for the steel brackets so I decided to use AN426AD4-6. The ideal length would be 5.5 but half sizes aren’t readily available. There aren’t enough in the kit so I ordered some extra. They haven’t arrived yet so I had to pause for now. I completed most of the remaining firewall rivets.
![](https://airplane.allanglen.com/wp-content/uploads/2021/07/pxl_20210713_0147598746073998382192077006.jpg)
![](https://airplane.allanglen.com/wp-content/uploads/2021/07/pxl_20210713_0148057213645947621065666761.jpg)
![](https://airplane.allanglen.com/wp-content/uploads/2021/07/pxl_20210713_0148103562154659060286950599.jpg)
![](https://airplane.allanglen.com/wp-content/uploads/2021/07/pxl_20210713_0148204438902206117054286563.jpg)
![](https://airplane.allanglen.com/wp-content/uploads/2021/07/pxl_20210713_0155311786976846161721027382.jpg)