if new steering valve and fault the same I would suspect the issue is with the length of flexi hose between the steering valve and the valve on the side with the problem. If you have the same problem with a new steering valve, it is very unlikely to be the steering valve.half way between,there was a joint between flexi hoses and solid pipes
easiest to get to.
I would not be surprised if it is an internal breakdown of the hose creating a flap that is blocking the hose rather than a leak.Thanks
I will check for any leaks
Can you get to the fittings at the orbital unit easily enough? If you can swap the two hoses there that go to the ram that would be a more definitive test. As Rannsachair says, it looks possible that there's a hose problem, if you can swap them at the orbital end then that will pretty much confirm it. If you swap the hoses at the orbital I'd expect the fault to then transfer over so that the air appears when you turn the steering wheel counter clockwise.half way between,there was a joint between flexi hoses and solid pipes
easiest to get to.
High points shouldn't be an issue as the system should stay full of oil, there should be nowhere for air to get in. If you start off with a pair of empty hoses these should prime themselves quite quickly by turning the steering lock to lock, keeping an eye on fluid levels as you go. The flow of oil down the hoses when the wheel is turned should be more than sufficient to expel any air in there.don't know if this is significant ,but the hose that goes to the side of the ram that is playing up is the high point in the system
and when swapping them over to test the ram there didnt seem to be alot of fluid in the hose.