dodgy helm pump

[Dt125]

Hi all,
Does anyone out there with a wagner 701 helm pump know why when i turn the wheel over quickly it just keeps clicking and doesnt actually move the leg? Its always done this since ive had the boat and i was wondering if its a fault that could be easily rectified. I dont think it can air bubbles after all this time Any ideas?

[Pete7]

Air in the system makes it feel very notchy but seems to come out eventually. The only time I have had the clicking sounds and no steering was when the Port Hydraulic hose came out of the bracket and leant against the hot turbo charger. The hole was only a tiny pin prick but the results quite serious resulting in near total loss of steering as the drive goes hard over with any application of power. So do you have a leak? possibly an internal one in the helm or ram? and is the helm full to the brim?

(You get the same sound when first starting to bleed the system)

Pete