October All Topic
#121
Correct. Pumping the brakes resulted in most of the fluid discharge. I've studied that diagram after we did ours, and I don't think the way we did it gets fluid directly out of the steering head. It still gets changed, but it recirculates through the resevoir. All that means is you don't get as much of the old stuff out as you would like. Getting to the discharge from the steering head is difficult, while getting to the discharge from the brake booster is easy peasy.
#122
In the diagram you will see that the PS and the PB are two separate fluid circuits. You would need to do the same procedure to the PS that is shown for the PB. But I think that is nearly impossible to do without a lot of disassembly. And I'm not sure you could still run the truck when you got down to it.
I think the written procedure is fine. I don't know how much fluid capacity is in the PS head and lines, but that amount of old fluid will be mixed with the new stuff.
I think if a guy wanted to get closer to a complete fluid change, the easiest way might be to do the procedure as written, then drive the truck for a week, and do it again the following weekend.
I'm satisfied with how we did it. But then, neither Steve nor I had a whining pump to begin with. So there it is, for what it's worth.
Editing to add: We used a turkey baster to suck as much of the fluid out of the resevoir as possible before we started the engine. So I think we were ahead of the game compared to that superdutypsd.com writeup. I definitely recommend that. We stuck a piece of tubing on the end of the baster to reach down in there.
I think the written procedure is fine. I don't know how much fluid capacity is in the PS head and lines, but that amount of old fluid will be mixed with the new stuff.
I think if a guy wanted to get closer to a complete fluid change, the easiest way might be to do the procedure as written, then drive the truck for a week, and do it again the following weekend.
I'm satisfied with how we did it. But then, neither Steve nor I had a whining pump to begin with. So there it is, for what it's worth.
Editing to add: We used a turkey baster to suck as much of the fluid out of the resevoir as possible before we started the engine. So I think we were ahead of the game compared to that superdutypsd.com writeup. I definitely recommend that. We stuck a piece of tubing on the end of the baster to reach down in there.
#126
That fluid would get waaaaay too hot without any cooler.
Any continuously-operating hydraulic system has generated heat to dissipate somewhere.
The higher the pump's RPM, the more heat.
Pop
Any continuously-operating hydraulic system has generated heat to dissipate somewhere.
The higher the pump's RPM, the more heat.
Pop
#127
I'll bet you could cut that return hose where the fines filter is inserted, and get a good flush on the PS head. It has the potential to be a little messier, but could be done. Stick a bolt in the draw side of the return hose so it cannot suck air.
I wanted to add to the turkey baster idea above - make sure you replace the fluid you suck out with fresh fluid, BEFORE you start the engine. During the entire process you do not want the system to draw air.
I wanted to add to the turkey baster idea above - make sure you replace the fluid you suck out with fresh fluid, BEFORE you start the engine. During the entire process you do not want the system to draw air.
#133
Just picked up my tux. Got the rehearsal dinner tonight. Tomorrow night my youngest will wed her beau. There is no peace around home today. Fortunately I'm leaving the whole bunch of them in a hotel tonight, so at least I can sleep later.
I'm worn out from watching all the running to and fro.
I'm worn out from watching all the running to and fro.