bubbles in the power stering resouiver

I own a 62 thunderbird that when I turn the stering wheel slowly coming into my driveway I here a slight moaning sound. Now someone suggested to go slowlgy and turn the wheel all the way to the left and then to the right to get rid od the air. How does that disapate the bubbles. Do I need to unhook the return line and let it drain out or what. Please advise. ps I did take it for a ride today and still see air bubbles in the resouiver after turn the wheel all the way to the the left and then right moving slow. By the way the belt is tight and the idle is set to 575 rpms. Still have the tiny bubbles do I need to keep turning. By the way how is that procedure get rid of the air in the line. Iam I more concern with the return line or the other line. Do I need to disconnect the return and let it drain out and start over. Thanks Larry

They should have said turn the wheel lock to lock slowly with the engine NOT running . That will purge the air from the system. That being said I don't remember having much trouble with older fords and air in the steering. Also theres gonna be a few air bubbles in just about any power steering system from cavitation. If it's groaning I would bet on a weak pump. I would use a turkey baster and empty the resevoir then top it off with Lucas power steering additive.

Thank you Hworrell for your advice. Larry

On some pumps, I have left the wheels turned all the way to one direction overnight and
then do the other side the next night.....

However, older Ford PS pumps moan louder than a high school girl in an SS396.....when/if
the pump ever gets low on fluid.....refilling will not help...the moan is permanent.

Havent tried the Lucas magic stuff....cant hurt.

mike in tucson

Thanks Mike someone else has suggested that also. Larry

I've always found turning from lock to lock will sort it but with the wheels off the ground, First you need to find out why the bubbles are there.