Hi all, I have really enjoyed the board, and all of the helpful tips. I try to add my own when I can.
I have the classic whiny power steering pump, and I have tried to fix it with different fluids and additives, but to no avail. I believe it is caused by cavitation, and I would like to repair/poke a hole in/or otherwise mangle the screen filter somewhere in the pump reservoir...which I believe is clogged.
Has anyone located this screen? I have heard it is only replaceable by replacing the reservoir, but if I have to take the pump off to get the reservoir off, then I might as well replace the pump, too. I would rather not do this right now.
If someone knows where this filter screen is located, I would like to drain the reservoir and punch a hole in it with a screwdriver, or pull it out with some needlenose pliers. Anyone know where it is?
I saw that #27 but I don't know what it could be. There's nothing more to the reservoir than the reservoir itself and one oring.
Have you tried purging any trapped air from your system? I saw a pretty good write up from some magazine when I was googling around to find the reservoir seal dimensions but I can't seem to find it now. They had a whole procedure.
I haven't, and really don't have the place to do it. I am a driveway mechanic, in the parking lot of my apartment complex...so I have to keep the fluid spills to a minimum. If I can do it without spilling a lot of fluid, I will look into it.
How about that 'lock to lock' method I have seen? I tried it a few times and it seemed to work for a while, but as soon as it gets cold again it is noisy. Besides the non-existent screen, where else and what else do you think would cause cavitation or air bubbles? No leaks, and a newer high pressure line was put on before I got it.
The article I read mentioned that you can suck air in from the o-ring between the reservoir and the pump. It can be loose enough to let air in but not enough to cause a leak. Besides a leak there is hard to spot as it tends to dribble down between the pump and reservoir, get caught in the brackets and wind, and never get to the ground.