Starlight Jayhawk Build Part 4 Engine Mount

The engine block is glued flush with the top of the engine mount tube.

The older Centuri instructions have you apply glued to the tube and slide the centering rings over and onto the glue.

I wouldn't do it this way. You might not have the time to get the centering rings in the right position before the glue starts to set up.

Dry slide (no glue!) the stacked centering rings into position, just until they support and keep the card stock shroud in a round shape. Too far down and the rings will bulge out the card stock.

Once the rings are in the right place, then simply run a fillet around the joint of the top ring.

This will be plenty of glue to keep the rings in the right place.