Power steering issue on a 1970s Massey Ferguson

   / Power steering issue on a 1970s Massey Ferguson
  • Thread Starter
#11  
We use it to move stuff around but its a pain to drive without the steering functioning.
 

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   / Power steering issue on a 1970s Massey Ferguson #12  
Devin 420 said:
We use it to move stuff around but its a pain to drive without the steering functioning.
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It would be helpful if we had some pictures of the type of power steering system it has. Not all of us are familiar with that particular model but some of us have had to repair steering systems that may be the same or similar to yours. Please always give as much information as possible to get the best responses for solutions!
 
   / Power steering issue on a 1970s Massey Ferguson
  • Thread Starter
#13  
Oh that is true the cylinder isnt exactly new looking but he says it is the pump is pretty new looking hoses are shot though gonna try to get better pics and more info later on today.
 

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   / Power steering issue on a 1970s Massey Ferguson #14  
Where you need to start is with the linkage. As I stated earlier, the linkage has to move the control valve spool in order for the power portion to operate. Enlist a helper if need be to turn the steering wheel back and forth while you watch the linkage. You can do it by yourself but sometimes it's better with help.

You need to see the control valve spool on top of the cylinder move in and out when attempting to steer or you will have strictly manual steering. There are multiple items in there that can reduce that spool movement and you need to identify them, and do what you can to improve them. No one can tell you from out here which ones are the problem as it could be anything between the pedestal shaft/bushings to the drag link ball joints. Try reaching in with the engine running and pry against the link on the control valve spool and see if the steering will attempt to operate at all.
 
   / Power steering issue on a 1970s Massey Ferguson #15  
This is an electric pump?
 
   / Power steering issue on a 1970s Massey Ferguson #16  
Harry has some good points! I had too much slop in the linkage of an old international that would no longer engage the control valve and would not allow hydraulic flow to the cylinder when it was needed. Good places to start!!
 
   / Power steering issue on a 1970s Massey Ferguson
  • Thread Starter
#18  
loggin said:
Harry has some good points! I had too much slop in the linkage of an old international that would no longer engage the control valve and would not allow hydraulic flow to the cylinder when it was needed. Good places to start!!
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Weve been super busy but we did fiddle with the ol 31 some were thinking its the steering box under the dash because everything else is tight and functions.
 
   / Power steering issue on a 1970s Massey Ferguson #19  
Devin 420 said:
Weve been super busy but we did fiddle with the ol 31 some were thinking its the steering box under the dash because everything else is tight and functions.
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Sorry, not very familiar with your particular model. Does the steering box contain the control valve that governs the delivery of hydraulic fluid to the steering cylinder?
 
   / Power steering issue on a 1970s Massey Ferguson #20  
It won't be the steering box. If everything up front were functioning you could steer it both ways from the front without touching the steering wheel. With a new pump and the linkage working properly, about the only thing left is piston seals in the steering cylinder.
 
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