Hey Guys,

I'm having a bit of an issue with the steering on my 1990 RB30.
Power steering oil level is good.
But, the steering is slightly harder and half of the time it screeches or "grinds"
when I steer it, especially when stationary.
I jacked up the front and checked whether it does the screeching/grinding when the
front wheels are not loaded. No noise or hardness of the steering whatsoever.
I haven't changed the power steering oil since I've had the vehicle which has been over six years. Oil kinda look darkish red.
I dunno whether I'm supposed to flush the old oil completely and put new oil.
And I'm not sure how to do that either.
A couple of years ago, I removed one of the leaking hoses that goes to the power steering pump to fix the leak. And oil reservoir ended up drained during that job, which I simply filled after fixing the oil leak.
There is a very slow apparent leak from the left CV which I need to fix soon.

That shouldn't cause steering issues, should it?

Do I need to flush the power steering oil completely as part of the maintenance?

What can be the reason for the steering hardness?

When it screeches, it even gets hard to steer(kinda locks).

Thanx in advance for any advice.

Dom