admiral 24c15 with 20b1 chassis attempt at restore

[fumplet]

https://www.youtube.com/shorts/oIu4j7k1Qy8
The jumpy goes away after a while for the most part. I hope I didnt damage the yoke while trying to make sure it was tight against the crt. STill hunting for picture centering issue. I chickened out again taking the tube out. Probably this weekend when Im not pressed for time with help.
Tried again tonight j(friday), with help and I cannot get the crt tube socket through the yoke. Does it require a good bit of force or will that damage the yoke? Am I supposed to take off the focus coil first? Or just give up. Only thing I did was scrub the area around the high voltage part of the crt with wire removed.
TUNER is still dirty thats why the sound kept on going in and out. I can grab the main click knob and rotate counter clockwise and sound gets louder but IM stuck holding the knob slightly off click for louder sound. Im assuming that means dirty tuner. Even the contacts as seen through the side of the tuner look black/tarnished. Im using radio shack contact cleaner and lubricant. Says for tv tuners. Is there anything better?