Pot Style Power Steering Control Motor Work Around

Retrotractor

New User
I am rebuilding a Ford 4000 from 1969. I'm almost there but can't find a rebuild kit or used/new pot style power steering control motor as the part is discontinued.

I have attached the parts diagram for the unit. The unit is item # 1 in parts diagram. If anyone knows where I could source the component parts or a unit that I could modify to replace my unit, it would be very much appreciated.
mvphoto22968.jpg


Thank you!
 
That parts diagram is for a 4000
row crop model. Is that what you
have?
Those are usually referred to
here (and on parts sites) as a
4200.
I don't know where to tell you
to get parts for the steering
motor.
I have that same model 4000 but
my steering is working fine -
other than a couple leaks under
the radiator - so I have never
been into it.
I do know that Char Lynn made
aftermarket steering motors to
retrofit other tractors like
Allis WD models. Maybe look at
something like that as an
option.
 
No experience with that model myself, but I've heard
of people adapting the steering motor from a
combine to them. They didn't say what make or
model... probably have to take some measurements
and make dome brackets.
 
If it will help, I have one from an Oliver combine that should fit. Been setting here on the shelf for a long time. The combine was juked.
 
That unit was made by Saginaw Steering Gear (a part of GM). Oliver, Massey and others used them on both tractors and combines. Parts have been gone since the 80's. Mostly combine units are used because you need an open center unit, and I can't think of ANY combine that used closed center like in some tractors. There was a service bulletin about converting to the Char-Lynn style style as used in later tractors, but if I HAD a copy I can't find it now.
 
IIRC.... those were ford's first attempt to build a steering motor and all/some of the parts inside were considered "married" to the housing and could not be changed with another housing. I had got into one for a 7200 and had modest success with getting the torque sensor (iirc) bent back to center a bit to correct the fine steering. As you mostly turn to the right, the sensor tap was twisted to the right and would no longer give you minor corrections to the right, only to the left.

I would try to either find one or replace with more common motor. There are some pricey aftermarket universal boxe/systems for 5600's out there as well but are too over priced to use.
 
That is called a hand pump they had issues had a MF 180 with one and also have a 4200 with one still was able to get a kit from
massey for the 180 back awhile ago. there are ways to retrofit do not have any experience with that yet. farm show had a article
a shop near Wellington Ohio phone 216-647-2652 Llyod Van Boven might be worth a call. Good Luck with it
 

Hi Wayne. I added the email function to my posts. I couldnt find your email on your post reply. Feel free to click the email tab at the bottom of one of my posts and we can connect that way.

And thx again to everyone that added some comments. Its helped me out tremendously.

Cheers

Dave
 
(quoted from post at 06:06:49 09/08/18) That unit was made by Saginaw Steering Gear (a part of GM). Oliver, Massey and others used them on both tractors and combines. Parts have been gone since the 80's. Mostly combine units are used because you need an open center unit, and I can't think of ANY combine that used closed center like in some tractors. There was a service bulletin about converting to the Char-Lynn style style as used in later tractors, but if I HAD a copy I can't find it now.

If you ever come across that service bulletin please post it here if possible.

I have the same style motor in my 5200 I found the upper seal by getting it from a part number that cross references with a Jeep steering box. I can get that # if anyone needs it.

My column is worn out. The splines are sloppy. I'm probably missing something with it but I can't quite get it "right". And tightly mounted.

I'm going with a new unit as a permanent fix. This ain't a museum around my place... it appears any new motor will be smaller in size so this should not be a difficult job to fab up a bracket to hold a new unit in the original mounting holes. We will find out if that is accurate though. Might be next spring but I will try to make a post to detail the procedure and part #'s once I've got this figured out.
 

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