Power Steering Control Valve
I went under to take a look. It seems to be the Power Steering Control Valve is leaking. I confirmed when looking in the Power steering unit and it was dry.
The one leaking was from Vette Brakes. Anyone know where I can get a NON-Chinese replacement?
I found this at Summit racing equipment: https://www.summitracing.com/parts/l...iABEgLbkfD_BwE
It mentions it is new. Is Lares Corporation a USA company?
Please pass on an sources of USA replacements. I have not had good luck with the Chinese parts I have used.
https://www.larescorp.com/plant-tour/
And that's after it has been thorughly disassembled, cleaned & rebuilt. Then after installing and centering the unit, you give it one shot of grease.
Don't get me wrong, love Summit, but some parts are so generic, fits all, etc.
I think you should stick with a Corvette vendor that really knows Vettes. Just in case there is an issue.
Just my 2 cents.
Then I emailed Lone star Caliper out of Texas for rebuild control valve.
He replied:
“Yes, we rebuild them in house in Texas. The cost is $149.00 to rebuild them and they come with a 5 year warranty. We don't use Chinese parts in our rebuilds. All seals are USA made.”
I’m not sure where he gets the USA seals, but I think this will be my solution.
Let me add as an aside, tracking a 54 year old car is not without it's consequences. But I do this with my son and wouldn’t change anything.
· Obviously the Power Steering control valve failed
· The Muncie started to pop out of gear on deceleration.
· The fuel filter gasket between the pump and block has started to leak.
Last edited by cottoneg; Oct 21, 2023 at 11:08 AM.
I met a guy at Carlisle 12-15 year ago that came to my booth with a USA rebuilt steering box. It was junk, the one he got before it was junk, the one before that was junk, he got 6 "rebuilt" boxes in from the same place and all were very nicely painted junk. They were worse than the original box he removed 6 months earlier. He had to pay a shop to replace the box every time and pay the shipping on top of it. It cost him over $1000 in those fees alone. I told him the rebuilder was 2 aisles over and to bring the box to them for a good one this time, I wasn't out to take his money. Given his story and the fact he was in their face I expected his problem to be resolved. He came back an hour later with a new box still packaged up and asked me to rebuild it. I asked him why, it's rebuilt, you told them your story, it should be good to go. He said, " I know it's junk, can you make it right" I removed the box from the cardboard box and it looked as good as one of mine on the table. Then he said, "turn it and see" so I put a rag on the input and attempted to turn it. It was like turning a box of rocks, no exaggeration! I told him to take it back and demand a good box. He insisted I fix it, knowing what he would get from another exchange box. What I found was the gears were worn out, junk. Instead of replacing them- that costs money, the simply flipped the worm nut upside down and assembled it. No way that would work- then or now, yet that and others were sold and one reason why rebuilt boxes and parts get a bad rap.
I don't rebuilt valves, but I have for my cars. Have you thought about going to manual steering? I don't road race so I can't say I can compare the two, but the box is the same and your box is dialed in. A manual centerlink and 451 arm might be worth a test.










Yes I saw that. Here is the Summit Link: Lares Corporation 10025 Lares New Power Steering Control Valves | Summit Racing
I have sent an email to both Summit and Lares to confirm they are USA made. They also have a Limited Lifetime Warranty.
The Best of Corvette for Corvette Enthusiasts
Hello,
Some of the parts on a #10025 do come form over seas but everything is built here in house. We do test these units for pressure, seal leaks and flow before they are boxed to ship to you. You have a lifetime warranty with this product as long as you keep your original paperwork. Please let me know if you have any other questions. Thank you.
I believe this is the way I am going.










I wonder where you can get instuctions on how to rebuild a Power steering control valve?? Anyone do it? Is it hard?
Last edited by cottoneg; Oct 25, 2023 at 05:02 PM.
I wonder where you can get instuctions on how to rebuild a Power steering control valve?? Anyone do it? Is it hard?
https://www.corvetteforum.com/forums...-question.html
Last edited by interpon; Oct 25, 2023 at 08:32 AM.
I wonder where you can get instuctions on how to rebuild a Power steering control valve?? Anyone do it? Is it hard?
The factory Chevrolet Shop Manual has a chapter on the power steering components and covers the rebuild of the control valve. The problem is having the experience in identifying wear of the individual pieces and knowing whats in or out of spec. The other problem was already mentioned...getting quality seals and small parts to build it with. Also building a test rig to check the component after the rebuild and under pressure. When I was buying my current Corvette the owner had it in the shop for the annual state inspection and the mechanic found the control valve was leaking so they replaced it. I hope I don't jinx myself but it has been good but I don't have any idea where the control valve came from as the service receipt just says its "(new)" and was $482 (part only).
Our cars are held together these days with inferior seals and sub-components. Its a big gamble as to what and when rebuilt things will fail despite best efforts of our own because of these small parts. I just rebuilt my front brake calipers and had to buy seals made in China (Raybestos) because I couldn't find anything else quickly plus vendors don't tend to identify the parts sources. You find out when the seals and parts arrive. I only did a couple 7 mile test drives before I had to rebuild one of those rebuilt calipers a second time due to a piston seal leak. My work environment was like a clean room surgery lab and I checked all known specs on the pistons and bores. Careful, slow, and methodical work done on the rebuilds. I try to blame myself and learn to do things better but a bad part is a bad part sometimes.
The amount of bad rebuilt parts coming out of these companies is astounding. You don't know when they will fail just that they will. I helped someone repair their A/C system and the brand new compressor had no air gap set on the clutch. The person that installed it just ran the nut down on it and sent it down the line. Setting the air gap on an AC compressor is a Basic 101 step in the process. He didn't have a puller to fix that so went to the auto parts store who tried to sell him a "rebuilt" compressor as that's all they had in stock. I looked at it on the store's counter and it looked like it had come right out of a 40 year old vehicle and was merely put into the box and sent out the door. It was ugly as sin and obviously untouched.
Sure I can remove it and send it back, but with my luck..........
Put this in a youtube search and you will see the procedure:
Willcox Rebuilds a Corvette Power Steering Control Valve 1963-1982
Good luck.http://www.cssbinc.com/images/ads/ho...structions.pdf
http://www.cssbinc.com/images/ads/ho...structions.pdf














