Luisi Steering Hub Installation Help

[RetroSportCar]

Hello Fellow Opeler

Trying to get a Luisi steering hub installed for the Manta A. Could not get it done right.
After setting (alignment) is made, center bolt tightened and drove around the block with no problem. Came to a complete stop
and finalized the bolt installation and horn install process only to realize that the horn is not working. After inspection, found out that
the hub DID NOT set deep to where the spring-loaded pin (horn connect behind hub) is suppose to make contact with ring/disk.

I tried to fully re-tighten the mid-bolt that holds the hub hoping to get it to its deepest setting, but no luck!
What went wrong with the installation here?

Thanks in advance.

carlo

[BQS4]

I had this same problem, but, I took the adaptor off and with a sharp X-ACTO knife (it's soft metal) and slowly trimmed the metal to open up the diameter of the hole till the horn pin made contact, then locked everything down.

[RetroSportCar]

That makes sense.
I did another inspection here. There is a gap between the hub itself and the steering wheel column cover (2-pc plastic) that houses the ignition.
(an opening as wide as an average ballpen would easily fit) JUST ABOUT THE SAME CLEARANCE THAT THE HORN PIN-CONNECT SITS AWAY FROM MAKING CONTACT.

To my recollection during removal of original steering wheel, there is a "spring insert" around the thread/spline of the steering column. Question now is: is this spring something that needs to go away when installing an aftermarket hub?
Could this spring's what's causing the hub to set further away from the pin touching the disk?

[BQS4]

That makes sense.
I did another inspection here. There is a gap between the hub itself and the steering wheel column cover (2-pc plastic) that houses the ignition.
(an opening as wide as an average ballpen would easily fit) JUST ABOUT THE SAME CLEARANCE THAT THE HORN PIN-CONNECT SITS AWAY FROM MAKING CONTACT.

To my recollection during removal of original steering wheel, there is a "spring insert" around the thread/spline of the steering column. Question now is: is this spring something that needs to go away when installing an aftermarket hub?
Could this spring's what's causing the hub to set further away from the pin touching the disk?

I would leave the spring in. The spring is not causing the problem. These adaptors are cast and after so many times of being used, the mould tends to get "sloppy". I just took my time and shaved a little, then put the adaptor on, and tried the horn. Kept doing this till it all worked out.