Howdy, golly.
Usually steering helms aren't repairable. When they go bad, it's normally the box or cable. With the clicking sound, it appears to be the helm. You can buy a complete new steering system for little more than the cost of just a cable. Stick your head under the dash to see what type you have, rotary or rack and pinion.
It would also be a good idea to lube the steering swivel on the motor.
iboats has both types in complete system packages with a helm and cable. You can save 5% by using the FORUM5 code at checkout or telling the customer service rep.