Best method for installing annular inserts into banjo?

[Right hand drive]

As per topic, what is the best method to install annular inserts into banjo?

Press fit?
Freeze insert?
warm banjo?

[rgalajda]

You would think freeze insert and warm ( heat ) banjo, maybe in hot water would be best . That method has been used on bearings for years.

[Right hand drive]

[Right hand drive]

Hot/cold method didn’t work. Being aluminum the temperatures equalized quickly. Pressed them in with a spacer in a small vice. Takes more effort with the last step to be pressed in then it snaps into place. I did notice after the point of no return with the first two there is a small dimple on the outer edge of the exposed top. I assumed this lined up with the booster leg centerline so that’s what I did for the last two.

Installation end (leg) threaded easy enough with 5/16-32 die.