"I'm sure you know the dri
"I'm sure you know the drill. Reservalve is to be filled 3/4 of the way. Pump pressure up to about 30 pounds, etc. Are you saying that when you do this, the pressure is not holding? Any evidence of leaks at the helm, any of the fittings, or the ram?
This will make the second time I have repaired mine. I followed Hynautic's instructions: You open the relief valves on the lower front of the reservalve, maintain fluid and pressure, then turn the wheel slowly 60 times in one direction. You then reverse, 60 times in the other direction. On my boat, I also had to bleed the steering cylinders. They have bleed screws, but had to be removed so that they could be angled up to get all of the air out. The only time mine would not hold pressure was when one of the steering cylinders was leaking. Of course, you could clearly see the oil comming out at the seal. I guess logically, the only way it can lose pressure is if it has an oil leak, or an air leak. If it is an oil leak somewhere, you should be able to find drips at fittings, lines, or seals where the problem exits. If you have no evidence of oil leaking, and it will not hold pressure, I would suspect the O-ring on the plug, or the shraeder fill valve on the top of the reservalve. The kid's bubble soap works great here. Use an old paint brush and generously paint some around the plug and valve. The bubbles will tell it all."