Wanted: Case 430 PS control valve

tsmerk

New User
I need a power steering control valve for a mid-`60's Case 430 tractor. If you have any information where I can find one, please contact me at [email protected]. Thanks!

The power steering control valve mounts to the end of the power cylinder on the tierod . It also connects to the pitman arm using a tapered ball stud. It has 2 power steering hoses connected to it as well. One is the pressure hose and the other is the return hose.
 
If it is the style like this and is just leaking, seal kits (item 9) may still be available from a Case dealer. All you need are the 2 spool end seals (item 11 & 12)that you might find at a hydraulic shop, other seals in the kit are just common size O-rings.

I've repaired several of these cylinders. The control valve is pretty much bullet proof if the spool and bore are not scored. If you have further questions confirm this is the correct cylinder (note tractor s/n at the top of the page).

Joe
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Joe (Wa) I do not know where I read this but I think I read that the valve is the same as one used on Ford cars in the 50's. Any truth to this?
 
The Bendix cylinder used on 50's Case tractors and some early 60's was originally for 50's DeSota cars and maybe other Chrysler vehicles. There are changes in later model cylinders though outward appearance was the same or closely similar. For instance, this one on my '56 310 came off a 700 Ford tractor. Identical dimensions, nearly all parts are the same except rod end packing housing is external and it has larger valve spool ends requiring larger seals of the same type. It is a drop-in replacement for the 50's Case cylinder. A similar cylinder of the same brand was used on some Ford trucks up into the mid 70's.

The reason I went with the nearly identical cylinder used on 700 & 900 Ford tractors is my cylinder rod had some irregular wear due to being slightly bent with consistent oil weep that new packing failed to eliminate. The Ford tractors cylinder was mounted up in the steering shaft along side the engine and was better protected than Case mounted down in front of the axle with a mickey mouse cover that was usually missing anyway. Plus Bendix seal kits were available on ebay for less than $10 as opposed to Ford's price $71 (10 years ago) and it is a drop in replacement with minor tie rod adjustment.

Pic 1 & 2 is usual wear found on front mounted Case cylinders. Pic 3 is Ford 700 cylinder mounted on Case 310 tractor, note rod end packing external housing with screw-on nut. Pic 4 is 700 cyl with nice drag loop I got for opening bid $10 on ebay, I was proud of that, had hunted for a good one for about 20 yrs. I was ready with a $100 but no other bids.

Joe
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On mine, the ball stud and seats are worn down and are not activating the hydraulic assist because they are sloppy. If I could just find the ball stud and the seats, that would be a cheaper solution. Let me know if you know of a source. Thanks.

(quoted from post at 20:45:04 12/06/16) If it is the style like this and is just leaking, seal kits (item 9) may still be available from a Case dealer. All you need are the 2 spool end seals (item 11 & 12)that you might find at a hydraulic shop, other seals in the kit are just common size O-rings.

I've repaired several of these cylinders. The control valve is pretty much bullet proof if the spool and bore are not scored. If you have further questions confirm this is the correct cylinder (note tractor s/n at the top of the page).

Joe
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I doubt that wear of ball stud (25) and seats (26) is your problem as spring (29) compensates for that type of wear. Describe how your cylinder functions now, does it move in one direction only or does it not function in either direction as in frozen or just binding. First of all I would like you to confirm that your cylinder is the one that matches the pic in this thread so we are not wasting our time here and we will go from there.

Joe
 
Mine wouldn't turn the wheels either way.Had the assembly off several times going by the book to set it up and replaced the o-rings.Finally took the cylinder apart and found that the piston was damaged and the rings were shot and the fluid was going around and couldn't pressure up when the wheels were on the ground.When I raised the front end off the ground, you could turn steering back and forth all day long.When you consider how old these things are, they have a reason for wearing out.New piston, new rod and new seals made it like a new one
 
Joe - Sorry, I see I made a mistake on the original post. It is a 420, not a 430. The cylinder is shorter and wider, and the link is at a right angle to the housing. I had the link replaced with one from a Ford Mustang, but now my mechanic states there is a sleeve inside that needs replaced and it is not available anywhere. I'm still open to buying the whole assembly if anyone has one available.

(quoted from post at 20:45:04 12/06/16) If it is the style like this and is just leaking, seal kits (item 9) may still be available from a Case dealer. All you need are the 2 spool end seals (item 11 & 12)that you might find at a hydraulic shop, other seals in the kit are just common size O-rings.

I've repaired several of these cylinders. The control valve is pretty much bullet proof if the spool and bore are not scored. If you have further questions confirm this is the correct cylinder (note tractor s/n at the top of the page).

Joe
 

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