I have figured out how to make the ball motor dead quiet! After a lot of messing around with it, I discovered that my problem wasn't lube, but the tightness of the screws on the motor. If they are too tight (the phillips head ones), the gears will grind, it will be noisy, and there can be enough resistance to blow a fuse. If you have a noisy motor, lift the table up and spin the ball while adjusting the screws. You should be able to hear a clear difference in volume. My motor is now dead quiet. The goalie is noisey, but the ball motor makes no noise.
The only thing that's bugging me on my machine now is my darn diverter ramp. I had it perfect, but after taking apart the machine to put in new rubbers, I can't get it dialed back in. I understand I can sort of turn the spring in and out, but it doesn't really seem to make a difference. About once a game the ball will drain because it meets resistance on the ramp and it's driving me nuts. Anyone got any tips?
New rubbers make a world of difference! I'm pretty sure some of the old one's were originals as they came off like chewed gum... It made a huge difference in the game's feel. I got 5 billion points last night after 3 or 4 games.
All in all I'm really loving the machine. As this is a one pin house for the moment I will be enjoying this until early next year, and probably switching out for a Jurassic Park. Thanks for all the help folks.