The brass ring on that shaft was all cleaned up. New wire down the tube. Testing was done with the ohm meter. The horn button was pressed and the wheel turned full rotation. All is good.
Yes when I cleaned it up I checked out the arm. It was fine.
And now for more good news........
THE ENGINE IS IN....
All went reasonably well. I had some initial issues with balancing the weight of the engine. It fell off the stand and thankfully the hoist took the weight. The biggest issue I had was clearance between the cab frame and transmission. The frame was catching the top of the big gear in the transmission. I ended up using my floor jack to lift the cab frame up on one side. I then put in a metal spacer between the front cab mounts. Then I repeated on the other side. This still wasn’t enough. So I used the floor javk and some wood cribbing and jacked up the rear part of the frame. This gave the transmission the extra 1/8” it needed and it slid into position. All in all it went well after I had some supper.
I’ve got a few things to sort out but I’m happy I hit this milestone.