Power Steering Resistance Turning Right
Thread Starter
2nd Gear
Joined: May 2018
Posts: 2
Likes: 0
Power Steering Resistance Turning Right
Hi all,
Looking for advice on the power steering of my '77 Corvette. I had replaced the power steering control valve with a "new" rebuilt valve. I hooked everything up correctly, bled the system then balanced the new valve. After i had finished all that and went for a test drive I found that it was extremely difficult to turn to the right. It wasn't as if there was no power steering when turning right, rather that there was resistance when doing so. I scoured through the forums a bit and decided that maybe my power cylinder was bad, I then replaced that and bled the system again before test driving. Same thing, was still hard to turn right. This doesn't happen while the wheels are off the ground and the car is not running.
Any suggestions? Could the valve I bought be a defect?
Looking for advice on the power steering of my '77 Corvette. I had replaced the power steering control valve with a "new" rebuilt valve. I hooked everything up correctly, bled the system then balanced the new valve. After i had finished all that and went for a test drive I found that it was extremely difficult to turn to the right. It wasn't as if there was no power steering when turning right, rather that there was resistance when doing so. I scoured through the forums a bit and decided that maybe my power cylinder was bad, I then replaced that and bled the system again before test driving. Same thing, was still hard to turn right. This doesn't happen while the wheels are off the ground and the car is not running.
Any suggestions? Could the valve I bought be a defect?
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
I'd make sure the hoses were x'd between the valve and cylinder and then I'd re-balance the valve. There shouldn't be any resistance on the valve in either direction if it's working properly and balanced.
And here is the instruction sheet on how to balance the valve.
http://repairs.willcoxcorvette.com/w...adjustment.pdf
And here is the instruction sheet on how to balance the valve.
http://repairs.willcoxcorvette.com/w...adjustment.pdf
Last edited by Willcox Corvette; May 7, 2018 at 12:57 PM.
Thread Starter
2nd Gear
Joined: May 2018
Posts: 2
Likes: 0
Update
The ram is new and is clean. I also cleaned all components before reassembly. I was just out and trying it again. When the wheels are off the ground it goes both ways just fine. Right and left. However when I dropped it and tried driving it again same issue, it was difficult to turn right. I think I may have gotten a faulty control valve...
Pro
Joined: May 2016
Posts: 708
Likes: 150
From: Minnesota
The ram is new and is clean. I also cleaned all components before reassembly. I was just out and trying it again. When the wheels are off the ground it goes both ways just fine. Right and left. However when I dropped it and tried driving it again same issue, it was difficult to turn right. I think I may have gotten a faulty control valve...
Race Director
Joined: Apr 2009
Posts: 19,294
Likes: 2,754
From: Charlotte NC
Try this...because it is a step I do when I am balancing the control valve.
When the wheels are obviously of the ground and I am adjusting the control valve to get it balanced with the engine running. When I get the control valve 'centered. I grab a hold of the piston shaft of the cylinder and I can push it in and pull it out of the cylinder and see how it feels.
Also...from what I have also found that some of these new control valves are crap due to the amount of capable adjustment sweep in the nut that is used to balance the control valve has a been taken from an approximate 20 minutes on the clock to about 3 minutes.
Which means the 'window' of movement in the nut that you can turn in and out is greatly reduced....thus making the control vale super sensitive to balancing due to whatever they did to lose that amount of sweep that the nut had originally from GM.
DUB
When the wheels are obviously of the ground and I am adjusting the control valve to get it balanced with the engine running. When I get the control valve 'centered. I grab a hold of the piston shaft of the cylinder and I can push it in and pull it out of the cylinder and see how it feels.
Also...from what I have also found that some of these new control valves are crap due to the amount of capable adjustment sweep in the nut that is used to balance the control valve has a been taken from an approximate 20 minutes on the clock to about 3 minutes.
Which means the 'window' of movement in the nut that you can turn in and out is greatly reduced....thus making the control vale super sensitive to balancing due to whatever they did to lose that amount of sweep that the nut had originally from GM.
DUB
