I'm currently putting a boat back in service (24' TCraft Cuddy) that has been stored for about ten yrs. It has 2 Hynautic steering helms, when I started to bleed the system I noticed the top station leaking around the shaft. Should I try to replace the seal in this myself or do I need to send it back to Hynautic for repair? I think we sent them out back in the day but I'm not sure.