CK5
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I would think that you would probably need to check flow, WHILE watching pressure. At least that's what I was taught about diagnosing slow hydraulic circuits.

too much work :rotfl:

Seems like a full hydro swap is inevitable here....

I was joking about this last weekend with a friend.
 
I've tested a lot of systems on semis. This is what you would need. https://www.freedomracing.com/j-253...MIo43y3rrG5AIVErvsCh0ewggiEAQYBCABEgI5_vD_BwE Not too bad of cost but then you have to rig it up inline with your pressure hose and know the specs on your system. We always had the expensive OTC one or a Kent Moore one I think at the shops I worked at. You just flow test it to get a GPM reading and then can dead head it to get pressure readings. Pretty simple once you are set up. The cylinder thing on the one below is the flow meter and the yellow handle closes it off to dead head to get a pressure reading on the gauge.

I have always wanted to do a medium/heavy duty truck style power steering system that basically just uses a hydraulic pump and res setup with the correct pressure and flow for what you need.
710n4cjBV6L._SL1500_.jpg
 
I've tested a lot of systems on semis. This is what you would need. https://www.freedomracing.com/j-253...MIo43y3rrG5AIVErvsCh0ewggiEAQYBCABEgI5_vD_BwE Not too bad of cost but then you have to rig it up inline with your pressure hose and know the specs on your system. We always had the expensive OTC one or a Kent Moore one I think at the shops I worked at. You just flow test it to get a GPM reading and then can dead head it to get pressure readings. Pretty simple once you are set up. The cylinder thing on the one below is the flow meter and the yellow handle closes it off to dead head to get a pressure reading on the gauge.

I have always wanted to do a medium/heavy duty truck style power steering system that basically just uses a hydraulic pump and res setup with the correct pressure and flow for what you need.
710n4cjBV6L._SL1500_.jpg

nifty tool, thanks for sharing the info. Hopefully it doesn't come down to this.....
 
What's the plan if this one is a shit pump too? How come you went away from oem? Volume and better flow I'm guessing.

I went with a PSC pump so I could increase the fluid capacity and have better pressure/flow over OEM. I don't even want to think about another pump failure, I'll cross that bridge if I get there.
 
Interesting developments with the steering.

I received the new replacement pump earlier this week from PSC however before I install that I wanted to pull the ram off the tie rod and see how the system functions without it. Once it was unbolted and zip tied out of the way I fired the truck up, grabbed the wheel to turn the wheels driver and immediately felt resistance in the wheel, a lot of resistance. However I noticed the ram was moving so it was somehow receiving pressure from the box even though the wheel was stuck and not turning. If I pull the wheel hard it will get past the resistance point and turn.

So in the end I have a shitload of resistance in the wheel when I first turn left or right. And because the ram is wanting to move independently from the steering box it’s doing most of the work.

I leave Thursday for a wheeling/camping/fishing trip so I need this shit fixed. My gut tells me the steering box has failed. Am I missing something here?
 
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Doesn’t sound good.

I’ve had them fail two ways: no power on input, and crunchy shit inside
 
You’re referring to the steering box right? It makes sense this has been my issue from day 1.
Most likely since you say once it's past that point it's easier?
The sector shaft is 3 teeth so my guess is something is in there or it's miss matched.
You have some that are quick ratio and some not:dunno:
 
Most likely since you say once it's past that point it's easier?
The sector shaft is 3 teeth so my guess is something is in there or it's miss matched.
You have some that are quick ratio and some not:dunno:

I can be anywhere in the steering cycle and when I try to turn the opposite direction, it fights me. So I can be turning right and once I go left, I get heavy resistance and then it feels like it breaks loose. I also get some random resistance while turning lock to lock after it breaks loose.
 
Valving in the box isn’t working
Beat me to it.
I had the same thing in the big rig, it was mostly doing it one way but changed the box and all was well.
Usually it's dirt on the valve that prevents it from switching sides fast enough and flushing might fix it but replacing is a much better chance unless you get a bad new part:doah:
 
While I am thinking that the box is probably the problem, I am fairly confident that you can't test it by disconnecting the ram mechanically without disconnecting it hydraulically as well. If I remember correctly, it has to build pressure in the ram lines to work correctly. Otherwise it doesn't give the proper pressure in the box control valves. The ram will become a pressure leak until it hits the end of stroke. I believe that is what I found out several years ago when testing one.
I would cap the ports on the box and see if things change, it may still not be how you want it, but I think that it should react more normally, even if it still has a hesitation.
 
While I am thinking that the box is probably the problem, I am fairly confident that you can't test it by disconnecting the ram mechanically without disconnecting it hydraulically as well. If I remember correctly, it has to build pressure in the ram lines to work correctly. Otherwise it doesn't give the proper pressure in the box control valves. The ram will become a pressure leak until it hits the end of stroke. I believe that is what I found out several years ago when testing one.
I would cap the ports on the box and see if things change, it may still not be how you want it, but I think that it should react more normally, even if it still has a hesitation.

I was already thinking I should disconnect the drag link and try again. I’ll cap off the ports as well. Thank you
 
Removed the hydro assist lines, capped the box. I can turn left to right with a single finger on the wheel but it maxes out left to right way too early. Hits a wall both directions, see the pics

588235CA-8ED9-4880-9190-6F90C2114112.jpeg

F5FB6D54-5F62-450F-BFA8-F4DDAACAC2DB.jpeg
 

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